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 /* $ModDesc: Provides a spanning tree server link protocol */
  25
  26 #include "inspircd.h"
  27 #include "socket.h"
  28 #include "xline.h"
  29
  30 #include "cachetimer.h"
  31 #include "resolvers.h"
  32 #include "main.h"
  33 #include "utils.h"
  34 #include "treeserver.h"
  35 #include "link.h"
  36 #include "treesocket.h"
  37 #include "commands.h"
  38 #include "protocolinterface.h"
  39
  40 ModuleSpanningTree::ModuleSpanningTree()
  41 {
  42         Utils = new SpanningTreeUtilities(this);
  43         commands = new SpanningTreeCommands(this);
  44         RefreshTimer = NULL;
  45 }
  46
  47 SpanningTreeCommands::SpanningTreeCommands(ModuleSpanningTree* module)
  48         : rconnect(module, module->Utils), rsquit(module, module->Utils),
  49         svsjoin(module), svspart(module), svsnick(module), metadata(module),
  50         uid(module), opertype(module), fjoin(module), fmode(module), ftopic(module),
  51         fhost(module), fident(module), fname(module)
  52 {
  53 }
  54
  55 void ModuleSpanningTree::init()
  56 {
  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->fmode);
  67         ServerInstance->Modules->AddService(commands->ftopic);
  68         ServerInstance->Modules->AddService(commands->fhost);
  69         ServerInstance->Modules->AddService(commands->fident);
  70         ServerInstance->Modules->AddService(commands->fname);
  71         RefreshTimer = new CacheRefreshTimer(Utils);
  72         ServerInstance->Timers->AddTimer(RefreshTimer);
  73
  74         Implementation eventlist[] =
  75         {
  76                 I_OnPreCommand, I_OnGetServerDescription, I_OnUserInvite, I_OnPostTopicChange,
  77                 I_OnWallops, I_OnUserNotice, I_OnUserMessage, I_OnBackgroundTimer, I_OnUserJoin,
  78                 I_OnChangeHost, I_OnChangeName, I_OnChangeIdent, I_OnUserPart, I_OnUnloadModule,
  79                 I_OnUserQuit, I_OnUserPostNick, I_OnUserKick, I_OnRemoteKill, I_OnRehash, I_OnPreRehash,
  80                 I_OnOper, I_OnAddLine, I_OnDelLine, I_OnMode, I_OnLoadModule, I_OnStats,
  81                 I_OnSetAway, I_OnPostCommand, I_OnUserConnect, I_OnAcceptConnection
  82         };
  83         ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
  84
  85         delete ServerInstance->PI;
  86         ServerInstance->PI = new SpanningTreeProtocolInterface(this, Utils);
  87         loopCall = false;
  88
  89         // update our local user count
  90         Utils->TreeRoot->SetUserCount(ServerInstance->Users->local_users.size());
  91 }
  92
  93 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
  94 {
  95         std::string Parent = Utils->TreeRoot->GetName();
  96         if (Current->GetParent())
  97         {
  98                 Parent = Current->GetParent()->GetName();
  99         }
 100         for (unsigned int q = 0; q < Current->ChildCount(); q++)
 101         {
 102                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str()))))
 103                 {
 104                         if (IS_OPER(user))
 105                         {
 106                                  ShowLinks(Current->GetChild(q),user,hops+1);
 107                         }
 108                 }
 109                 else
 110                 {
 111                         ShowLinks(Current->GetChild(q),user,hops+1);
 112                 }
 113         }
 114         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
 115         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!IS_OPER(user)))
 116                 return;
 117         /* Or if the server is hidden and they're not an oper */
 118         else if ((Current->Hidden) && (!IS_OPER(user)))
 119                 return;
 120
 121         user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick.c_str(),Current->GetName().c_str(),
 122                         (Utils->FlatLinks && (!IS_OPER(user))) ? ServerInstance->Config->ServerName.c_str() : Parent.c_str(),
 123                         (Utils->FlatLinks && (!IS_OPER(user))) ? 0 : hops,
 124                         Current->GetDesc().c_str());
 125 }
 126
 127 int ModuleSpanningTree::CountServs()
 128 {
 129         return Utils->serverlist.size();
 130 }
 131
 132 void ModuleSpanningTree::HandleLinks(const std::vector<std::string>& parameters, User* user)
 133 {
 134         ShowLinks(Utils->TreeRoot,user,0);
 135         user->WriteNumeric(365, "%s * :End of /LINKS list.",user->nick.c_str());
 136         return;
 137 }
 138
 139 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 140 {
 141         time_t mins_up = secs / 60;
 142         time_t hours_up = mins_up / 60;
 143         time_t days_up = hours_up / 24;
 144         secs = secs % 60;
 145         mins_up = mins_up % 60;
 146         hours_up = hours_up % 24;
 147         return ((days_up ? (ConvToStr(days_up) + "d") : std::string(""))
 148                         + (hours_up ? (ConvToStr(hours_up) + "h") : std::string(""))
 149                         + (mins_up ? (ConvToStr(mins_up) + "m") : std::string(""))
 150                         + ConvToStr(secs) + "s");
 151 }
 152
 153 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 154 {
 155         /*
 156          * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 157          * This prevents lost REMOTECONNECT notices
 158          */
 159         long ts = ServerInstance->Time() * 1000 + (ServerInstance->Time_ns() / 1000000);
 160
 161 restart:
 162         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 163         {
 164                 TreeServer *s = i->second;
 165
 166                 if (s->GetSocket() && s->GetSocket()->GetLinkState() == DYING)
 167                 {
 168                         s->GetSocket()->Close();
 169                         goto restart;
 170                 }
 171
 172                 // Fix for bug #792, do not ping servers that are not connected yet!
 173                 // Remote servers have Socket == NULL and local connected servers have
 174                 // Socket->LinkState == CONNECTED
 175                 if (s->GetSocket() && s->GetSocket()->GetLinkState() != CONNECTED)
 176                         continue;
 177
 178                 // Now do PING checks on all servers
 179                 TreeServer *mts = Utils->BestRouteTo(s->GetID());
 180
 181                 if (mts)
 182                 {
 183                         // Only ping if this server needs one
 184                         if (curtime >= s->NextPingTime())
 185                         {
 186                                 // And if they answered the last
 187                                 if (s->AnsweredLastPing())
 188                                 {
 189                                         // They did, send a ping to them
 190                                         s->SetNextPingTime(curtime + Utils->PingFreq);
 191                                         TreeSocket *tsock = mts->GetSocket();
 192
 193                                         // ... if we can find a proper route to them
 194                                         if (tsock)
 195                                         {
 196                                                 tsock->WriteLine(std::string(":") + ServerInstance->Config->GetSID() + " PING " +
 197                                                                 ServerInstance->Config->GetSID() + " " + s->GetID());
 198                                                 s->LastPingMsec = ts;
 199                                         }
 200                                 }
 201                                 else
 202                                 {
 203                                         // They didn't answer the last ping, if they are locally connected, get rid of them.
 204                                         TreeSocket *sock = s->GetSocket();
 205                                         if (sock)
 206                                         {
 207                                                 sock->SendError("Ping timeout");
 208                                                 sock->Close();
 209                                                 goto restart;
 210                                         }
 211                                 }
 212                         }
 213
 214                         // If warn on ping enabled and not warned and the difference is sufficient and they didn't answer the last ping...
 215                         if ((Utils->PingWarnTime) && (!s->Warned) && (curtime >= s->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!s->AnsweredLastPing()))
 216                         {
 217                                 /* The server hasnt responded, send a warning to opers */
 218                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", s->GetName().c_str(), Utils->PingWarnTime);
 219                                 s->Warned = true;
 220                         }
 221                 }
 222         }
 223 }
 224
 225 void ModuleSpanningTree::ConnectServer(Autoconnect* a, bool on_timer)
 226 {
 227         if (!a)
 228                 return;
 229         for(unsigned int j=0; j < a->servers.size(); j++)
 230         {
 231                 if (Utils->FindServer(a->servers[j]))
 232                 {
 233                         // found something in this block. Should the server fail,
 234                         // we want to start at the start of the list, not in the
 235                         // middle where we left off
 236                         a->position = -1;
 237                         return;
 238                 }
 239         }
 240         if (on_timer && a->position >= 0)
 241                 return;
 242         if (!on_timer && a->position < 0)
 243                 return;
 244
 245         a->position++;
 246         while (a->position < (int)a->servers.size())
 247         {
 248                 Link* x = Utils->FindLink(a->servers[a->position]);
 249                 if (x)
 250                 {
 251                         ServerInstance->SNO->WriteToSnoMask('l', "AUTOCONNECT: Auto-connecting server \002%s\002", x->Name.c_str());
 252                         ConnectServer(x, a);
 253                         return;
 254                 }
 255                 a->position++;
 256         }
 257         // Autoconnect chain has been fully iterated; start at the beginning on the
 258         // next AutoConnectServers run
 259         a->position = -1;
 260 }
 261
 262 void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
 263 {
 264         bool ipvalid = true;
 265
 266         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 267         {
 268                 ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
 269                 return;
 270         }
 271
 272         QueryType start_type = DNS_QUERY_A;
 273         start_type = DNS_QUERY_AAAA;
 274         if (strchr(x->IPAddr.c_str(),':'))
 275         {
 276                 in6_addr n;
 277                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 278                         ipvalid = false;
 279         }
 280         else
 281         {
 282                 in_addr n;
 283                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 284                         ipvalid = false;
 285         }
 286
 287         /* Do we already have an IP? If so, no need to resolve it. */
 288         if (ipvalid)
 289         {
 290                 /* Gave a hook, but it wasnt one we know */
 291                 TreeSocket* newsocket = new TreeSocket(Utils, x, y, x->IPAddr);
 292                 if (newsocket->GetFd() > -1)
 293                 {
 294                         /* Handled automatically on success */
 295                 }
 296                 else
 297                 {
 298                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",
 299                                 x->Name.c_str(), newsocket->getError().c_str());
 300                         ServerInstance->GlobalCulls.AddItem(newsocket);
 301                 }
 302         }
 303         else
 304         {
 305                 try
 306                 {
 307                         bool cached;
 308                         ServernameResolver* snr = new ServernameResolver(Utils, x->IPAddr, x, cached, start_type, y);
 309                         ServerInstance->AddResolver(snr, cached);
 310                 }
 311                 catch (ModuleException& e)
 312                 {
 313                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 314                         ConnectServer(y, false);
 315                 }
 316         }
 317 }
 318
 319 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 320 {
 321         for (std::vector<reference<Autoconnect> >::iterator i = Utils->AutoconnectBlocks.begin(); i < Utils->AutoconnectBlocks.end(); ++i)
 322         {
 323                 Autoconnect* x = *i;
 324                 if (curtime >= x->NextConnectTime)
 325                 {
 326                         x->NextConnectTime = curtime + x->Period;
 327                         ConnectServer(x, true);
 328                 }
 329         }
 330 }
 331
 332 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 333 {
 334         std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin();
 335         while (i != Utils->timeoutlist.end())
 336         {
 337                 TreeSocket* s = i->first;
 338                 std::pair<std::string, int> p = i->second;
 339                 std::map<TreeSocket*, std::pair<std::string, int> >::iterator me = i;
 340                 i++;
 341                 if (s->GetLinkState() == DYING)
 342                 {
 343                         Utils->timeoutlist.erase(me);
 344                         s->Close();
 345                 }
 346                 else if (curtime > s->age + p.second)
 347                 {
 348                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 349                         Utils->timeoutlist.erase(me);
 350                         s->Close();
 351                 }
 352         }
 353 }
 354
 355 ModResult ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 356 {
 357         // we've already checked if pcnt > 0, so this is safe
 358         TreeServer* found = Utils->FindServerMask(parameters[0]);
 359         if (found)
 360         {
 361                 std::string Version = found->GetVersion();
 362                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 363                 if (found == Utils->TreeRoot)
 364                 {
 365                         ServerInstance->Config->Send005(user);
 366                 }
 367         }
 368         else
 369         {
 370                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 371         }
 372         return MOD_RES_DENY;
 373 }
 374
 375 /* This method will attempt to get a message to a remote user.
 376  */
 377 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 378 {
 379         char text[MAXBUF];
 380         va_list argsPtr;
 381
 382         va_start(argsPtr, format);
 383         vsnprintf(text, MAXBUF, format, argsPtr);
 384         va_end(argsPtr);
 385
 386         if (IS_LOCAL(user))
 387                 user->WriteServ("NOTICE %s :%s", user->nick.c_str(), text);
 388         else
 389                 ServerInstance->PI->SendUserNotice(user, text);
 390 }
 391
 392 ModResult ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 393 {
 394         for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i < Utils->LinkBlocks.end(); i++)
 395         {
 396                 Link* x = *i;
 397                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 398                 {
 399                         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 400                         {
 401                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
 402                                 return MOD_RES_DENY;
 403                         }
 404
 405                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 406                         if (!CheckDupe)
 407                         {
 408                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 409                                 ConnectServer(x);
 410                                 return MOD_RES_DENY;
 411                         }
 412                         else
 413                         {
 414                                 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());
 415                                 return MOD_RES_DENY;
 416                         }
 417                 }
 418         }
 419         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 420         return MOD_RES_DENY;
 421 }
 422
 423 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 424 {
 425         TreeServer* s = Utils->FindServer(servername);
 426         if (s)
 427         {
 428                 description = s->GetDesc();
 429         }
 430 }
 431
 432 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 433 {
 434         if (IS_LOCAL(source))
 435         {
 436                 parameterlist params;
 437                 params.push_back(dest->uuid);
 438                 params.push_back(channel->name);
 439                 params.push_back(ConvToStr(expiry));
 440                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 441         }
 442 }
 443
 444 void ModuleSpanningTree::OnPostTopicChange(User* user, Channel* chan, const std::string &topic)
 445 {
 446         // Drop remote events on the floor.
 447         if (!IS_LOCAL(user))
 448                 return;
 449
 450         parameterlist params;
 451         params.push_back(chan->name);
 452         params.push_back(":"+topic);
 453         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 454 }
 455
 456 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 457 {
 458         if (IS_LOCAL(user))
 459         {
 460                 parameterlist params;
 461                 params.push_back(":"+text);
 462                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 463         }
 464 }
 465
 466 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 467 {
 468         /* Server origin */
 469         if (user == NULL)
 470                 return;
 471
 472         if (target_type == TYPE_USER)
 473         {
 474                 User* d = (User*)dest;
 475                 if (!IS_LOCAL(d) && IS_LOCAL(user))
 476                 {
 477                         parameterlist params;
 478                         params.push_back(d->uuid);
 479                         params.push_back(":"+text);
 480                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 481                 }
 482         }
 483         else if (target_type == TYPE_CHANNEL)
 484         {
 485                 if (IS_LOCAL(user))
 486                 {
 487                         Channel *c = (Channel*)dest;
 488                         if (c)
 489                         {
 490                                 std::string cname = c->name;
 491                                 if (status)
 492                                         cname = status + cname;
 493                                 TreeServerList list;
 494                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 495                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 496                                 {
 497                                         TreeSocket* Sock = i->second->GetSocket();
 498                                         if (Sock)
 499                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 500                                 }
 501                         }
 502                 }
 503         }
 504         else if (target_type == TYPE_SERVER)
 505         {
 506                 if (IS_LOCAL(user))
 507                 {
 508                         char* target = (char*)dest;
 509                         parameterlist par;
 510                         par.push_back(target);
 511                         par.push_back(":"+text);
 512                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 513                 }
 514         }
 515 }
 516
 517 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 518 {
 519         /* Server origin */
 520         if (user == NULL)
 521                 return;
 522
 523         if (target_type == TYPE_USER)
 524         {
 525                 // route private messages which are targetted at clients only to the server
 526                 // which needs to receive them
 527                 User* d = (User*)dest;
 528                 if (!IS_LOCAL(d) && (IS_LOCAL(user)))
 529                 {
 530                         parameterlist params;
 531                         params.push_back(d->uuid);
 532                         params.push_back(":"+text);
 533                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 534                 }
 535         }
 536         else if (target_type == TYPE_CHANNEL)
 537         {
 538                 if (IS_LOCAL(user))
 539                 {
 540                         Channel *c = (Channel*)dest;
 541                         if (c)
 542                         {
 543                                 std::string cname = c->name;
 544                                 if (status)
 545                                         cname = status + cname;
 546                                 TreeServerList list;
 547                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 548                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 549                                 {
 550                                         TreeSocket* Sock = i->second->GetSocket();
 551                                         if (Sock)
 552                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 553                                 }
 554                         }
 555                 }
 556         }
 557         else if (target_type == TYPE_SERVER)
 558         {
 559                 if (IS_LOCAL(user))
 560                 {
 561                         char* target = (char*)dest;
 562                         parameterlist par;
 563                         par.push_back(target);
 564                         par.push_back(":"+text);
 565                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 566                 }
 567         }
 568 }
 569
 570 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 571 {
 572         AutoConnectServers(curtime);
 573         DoPingChecks(curtime);
 574         DoConnectTimeout(curtime);
 575 }
 576
 577 void ModuleSpanningTree::OnUserConnect(LocalUser* user)
 578 {
 579         if (user->quitting)
 580                 return;
 581
 582         parameterlist params;
 583         params.push_back(user->uuid);
 584         params.push_back(ConvToStr(user->age));
 585         params.push_back(user->nick);
 586         params.push_back(user->host);
 587         params.push_back(user->dhost);
 588         params.push_back(user->ident);
 589         params.push_back(user->GetIPString());
 590         params.push_back(ConvToStr(user->signon));
 591         params.push_back("+"+std::string(user->FormatModes(true)));
 592         params.push_back(":"+std::string(user->fullname));
 593         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 594
 595         if (IS_OPER(user))
 596         {
 597                 params.clear();
 598                 params.push_back(user->oper->name);
 599                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 600         }
 601
 602         for(Extensible::ExtensibleStore::const_iterator i = user->GetExtList().begin(); i != user->GetExtList().end(); i++)
 603         {
 604                 ExtensionItem* item = i->first;
 605                 std::string value = item->serialize(FORMAT_NETWORK, user, i->second);
 606                 if (!value.empty())
 607                         ServerInstance->PI->SendMetaData(user, item->name, value);
 608         }
 609
 610         Utils->TreeRoot->SetUserCount(1); // increment by 1
 611 }
 612
 613 void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created, CUList& excepts)
 614 {
 615         // Only do this for local users
 616         if (IS_LOCAL(memb->user))
 617         {
 618                 parameterlist params;
 619                 // set up their permissions and the channel TS with FJOIN.
 620                 // All users are FJOINed now, because a module may specify
 621                 // new joining permissions for the user.
 622                 params.push_back(memb->chan->name);
 623                 params.push_back(ConvToStr(memb->chan->age));
 624                 params.push_back(std::string("+") + memb->chan->ChanModes(true));
 625                 params.push_back(memb->modes+","+std::string(memb->user->uuid));
 626                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 627         }
 628 }
 629
 630 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 631 {
 632         if (user->registered != REG_ALL || !IS_LOCAL(user))
 633                 return;
 634
 635         parameterlist params;
 636         params.push_back(newhost);
 637         Utils->DoOneToMany(user->uuid,"FHOST",params);
 638 }
 639
 640 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 641 {
 642         if (user->registered != REG_ALL || !IS_LOCAL(user))
 643                 return;
 644
 645         parameterlist params;
 646         params.push_back(gecos);
 647         Utils->DoOneToMany(user->uuid,"FNAME",params);
 648 }
 649
 650 void ModuleSpanningTree::OnChangeIdent(User* user, const std::string &ident)
 651 {
 652         // only occurs for local clients
 653         if (user->registered != REG_ALL)
 654                 return;
 655
 656         parameterlist params;
 657         params.push_back(ident);
 658         Utils->DoOneToMany(user->uuid,"FIDENT",params);
 659 }
 660
 661 void ModuleSpanningTree::OnUserPart(Membership* memb, std::string &partmessage, CUList& excepts)
 662 {
 663         if (IS_LOCAL(memb->user))
 664         {
 665                 parameterlist params;
 666                 params.push_back(memb->chan->name);
 667                 if (!partmessage.empty())
 668                         params.push_back(":"+partmessage);
 669                 Utils->DoOneToMany(memb->user->uuid,"PART",params);
 670         }
 671 }
 672
 673 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 674 {
 675         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 676         {
 677                 parameterlist params;
 678
 679                 if (oper_message != reason)
 680                 {
 681                         params.push_back(":"+oper_message);
 682                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 683                 }
 684                 params.clear();
 685                 params.push_back(":"+reason);
 686                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 687         }
 688
 689         // Regardless, We need to modify the user Counts..
 690         TreeServer* SourceServer = Utils->FindServer(user->server);
 691         if (SourceServer)
 692         {
 693                 SourceServer->SetUserCount(-1); // decrement by 1
 694         }
 695 }
 696
 697 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 698 {
 699         if (IS_LOCAL(user))
 700         {
 701                 parameterlist params;
 702                 params.push_back(user->nick);
 703
 704                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 705                  */
 706                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 707                         user->age = ServerInstance->Time();
 708
 709                 params.push_back(ConvToStr(user->age));
 710                 Utils->DoOneToMany(user->uuid,"NICK",params);
 711         }
 712         else if (!loopCall && user->nick == user->uuid)
 713         {
 714                 parameterlist params;
 715                 params.push_back(user->uuid);
 716                 params.push_back(ConvToStr(user->age));
 717                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SAVE",params);
 718         }
 719 }
 720
 721 void ModuleSpanningTree::OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts)
 722 {
 723         parameterlist params;
 724         params.push_back(memb->chan->name);
 725         params.push_back(memb->user->uuid);
 726         params.push_back(":"+reason);
 727         if (IS_LOCAL(source))
 728         {
 729                 Utils->DoOneToMany(source->uuid,"KICK",params);
 730         }
 731         else if (source == ServerInstance->FakeClient)
 732         {
 733                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 734         }
 735 }
 736
 737 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 738 {
 739         if (!IS_LOCAL(source))
 740                 return; // Only start routing if we're origin.
 741
 742         ServerInstance->OperQuit.set(dest, operreason);
 743         parameterlist params;
 744         params.push_back(":"+operreason);
 745         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 746         params.clear();
 747         params.push_back(dest->uuid);
 748         params.push_back(":"+reason);
 749         Utils->DoOneToMany(source->uuid,"KILL",params);
 750 }
 751
 752 void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 753 {
 754         ServerInstance->Logs->Log("remoterehash", DEBUG, "called with param %s", parameter.c_str());
 755
 756         // Send out to other servers
 757         if (!parameter.empty() && parameter[0] != '-')
 758         {
 759                 parameterlist params;
 760                 params.push_back(parameter);
 761                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 762         }
 763 }
 764
 765 void ModuleSpanningTree::OnRehash(User* user)
 766 {
 767         // Re-read config stuff
 768         try
 769         {
 770                 Utils->ReadConfiguration();
 771         }
 772         catch (ModuleException& e)
 773         {
 774                 // Refresh the IP cache anyway, so servers read before the error will be allowed to connect
 775                 Utils->RefreshIPCache();
 776                 // Always warn local opers with snomask +l, also warn globally (snomask +L) if the rehash was issued by a remote user
 777                 std::string msg = "Error in configuration: ";
 778                 msg.append(e.GetReason());
 779                 ServerInstance->SNO->WriteToSnoMask('l', msg);
 780                 if (!IS_LOCAL(user))
 781                         ServerInstance->PI->SendSNONotice("L", msg);
 782         }
 783 }
 784
 785 void ModuleSpanningTree::OnLoadModule(Module* mod)
 786 {
 787         std::string data;
 788         data.push_back('+');
 789         data.append(mod->ModuleSourceFile);
 790         Version v = mod->GetVersion();
 791         if (!v.link_data.empty())
 792         {
 793                 data.push_back('=');
 794                 data.append(v.link_data);
 795         }
 796         ServerInstance->PI->SendMetaData(NULL, "modules", data);
 797 }
 798
 799 void ModuleSpanningTree::OnUnloadModule(Module* mod)
 800 {
 801         ServerInstance->PI->SendMetaData(NULL, "modules", "-" + mod->ModuleSourceFile);
 802
 803         unsigned int items = Utils->TreeRoot->ChildCount();
 804         for(unsigned int x = 0; x < items; x++)
 805         {
 806                 TreeServer* srv = Utils->TreeRoot->GetChild(x);
 807                 TreeSocket* sock = srv->GetSocket();
 808                 if (sock && sock->GetIOHook() == mod)
 809                 {
 810                         sock->SendError("SSL module unloaded");
 811                         sock->Close();
 812                 }
 813         }
 814 }
 815
 816 void ModuleSpanningTree::RedoConfig(Module* mod)
 817 {
 818 }
 819
 820 // note: the protocol does not allow direct umode +o except
 821 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 822 // locally.
 823 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 824 {
 825         if (user->registered != REG_ALL || !IS_LOCAL(user))
 826                 return;
 827         parameterlist params;
 828         params.push_back(opertype);
 829         Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 830 }
 831
 832 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 833 {
 834         if (!x->IsBurstable() || loopCall)
 835                 return;
 836
 837         char data[MAXBUF];
 838         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
 839         ServerInstance->Config->ServerName.c_str(), (unsigned long)x->set_time, (unsigned long)x->duration, x->reason.c_str());
 840         parameterlist params;
 841         params.push_back(data);
 842
 843         if (!user)
 844         {
 845                 /* Server-set lines */
 846                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 847         }
 848         else if (IS_LOCAL(user))
 849         {
 850                 /* User-set lines */
 851                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 852         }
 853 }
 854
 855 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 856 {
 857         if (!x->IsBurstable() || loopCall)
 858                 return;
 859
 860         char data[MAXBUF];
 861         snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
 862         parameterlist params;
 863         params.push_back(data);
 864
 865         if (!user)
 866         {
 867                 /* Server-unset lines */
 868                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 869         }
 870         else if (IS_LOCAL(user))
 871         {
 872                 /* User-unset lines */
 873                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 874         }
 875 }
 876
 877 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const parameterlist &text, const std::vector<TranslateType> &translate)
 878 {
 879         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 880         {
 881                 parameterlist params;
 882                 std::string command;
 883                 std::string output_text;
 884
 885                 ServerInstance->Parser->TranslateUIDs(translate, text, output_text);
 886
 887                 if (target_type == TYPE_USER)
 888                 {
 889                         User* u = (User*)dest;
 890                         params.push_back(u->uuid);
 891                         params.push_back(output_text);
 892                         command = "MODE";
 893                 }
 894                 else
 895                 {
 896                         Channel* c = (Channel*)dest;
 897                         params.push_back(c->name);
 898                         params.push_back(ConvToStr(c->age));
 899                         params.push_back(output_text);
 900                         command = "FMODE";
 901                 }
 902
 903                 Utils->DoOneToMany(user->uuid, command, params);
 904         }
 905 }
 906
 907 ModResult ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 908 {
 909         if (IS_LOCAL(user))
 910         {
 911                 if (awaymsg.empty())
 912                 {
 913                         parameterlist params;
 914                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 915                 }
 916                 else
 917                 {
 918                         parameterlist params;
 919                         params.push_back(ConvToStr(user->awaytime));
 920                         params.push_back(":" + awaymsg);
 921                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 922                 }
 923         }
 924
 925         return MOD_RES_PASSTHRU;
 926 }
 927
 928 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const parameterlist &modeline, const std::vector<TranslateType> &translate)
 929 {
 930         TreeSocket* s = (TreeSocket*)opaque;
 931         std::string output_text;
 932
 933         ServerInstance->Parser->TranslateUIDs(translate, modeline, output_text);
 934
 935         if (target)
 936         {
 937                 if (target_type == TYPE_USER)
 938                 {
 939                         User* u = (User*)target;
 940                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 941                 }
 942                 else if (target_type == TYPE_CHANNEL)
 943                 {
 944                         Channel* c = (Channel*)target;
 945                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 946                 }
 947         }
 948 }
 949
 950 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, Extensible* target, const std::string &extname, const std::string &extdata)
 951 {
 952         TreeSocket* s = static_cast<TreeSocket*>(opaque);
 953         User* u = dynamic_cast<User*>(target);
 954         Channel* c = dynamic_cast<Channel*>(target);
 955         if (u)
 956                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 957         else if (c)
 958                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 959         else if (!target)
 960                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 961 }
 962
 963 CullResult ModuleSpanningTree::cull()
 964 {
 965         Utils->cull();
 966         ServerInstance->Timers->DelTimer(RefreshTimer);
 967         return this->Module::cull();
 968 }
 969
 970 ModuleSpanningTree::~ModuleSpanningTree()
 971 {
 972         delete ServerInstance->PI;
 973         ServerInstance->PI = new ProtocolInterface;
 974
 975         /* This will also free the listeners */
 976         delete Utils;
 977
 978         delete commands;
 979 }
 980
 981 Version ModuleSpanningTree::GetVersion()
 982 {
 983         return Version("Allows servers to be linked", VF_VENDOR);
 984 }
 985
 986 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 987  * so that any activity it sees is FINAL, e.g. we arent going to send out
 988  * a NICK message before m_cloaking has finished putting the +x on the user,
 989  * etc etc.
 990  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 991  * the module call queue.
 992  */
 993 void ModuleSpanningTree::Prioritize()
 994 {
 995         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 996 }
 997
 998 MODULE_INIT(ModuleSpanningTree)