src/modules/m_spanningtree/main.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2010 InspIRCd Development Team
   6  * See: http://wiki.inspircd.org/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *          the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 /* $ModDesc: Provides a spanning tree server link protocol */
  15
  16 #include "inspircd.h"
  17 #include "socket.h"
  18 #include "xline.h"
  19
  20 #include "cachetimer.h"
  21 #include "resolvers.h"
  22 #include "main.h"
  23 #include "utils.h"
  24 #include "treeserver.h"
  25 #include "link.h"
  26 #include "treesocket.h"
  27 #include "commands.h"
  28 #include "protocolinterface.h"
  29
  30 ModuleSpanningTree::ModuleSpanningTree()
  31 {
  32         Utils = new SpanningTreeUtilities(this);
  33         commands = new SpanningTreeCommands(this);
  34 }
  35
  36 SpanningTreeCommands::SpanningTreeCommands(ModuleSpanningTree* module)
  37         : rconnect(module, module->Utils), rsquit(module, module->Utils),
  38         svsjoin(module), svspart(module), svsnick(module), metadata(module),
  39         uid(module), opertype(module), fjoin(module), fmode(module), ftopic(module),
  40         fhost(module), fident(module), fname(module)
  41 {
  42 }
  43
  44 void ModuleSpanningTree::init()
  45 {
  46         RefreshTimer = new CacheRefreshTimer(Utils);
  47         ServerInstance->Modules->AddService(commands->rconnect);
  48         ServerInstance->Modules->AddService(commands->rsquit);
  49         ServerInstance->Modules->AddService(commands->svsjoin);
  50         ServerInstance->Modules->AddService(commands->svspart);
  51         ServerInstance->Modules->AddService(commands->svsnick);
  52         ServerInstance->Modules->AddService(commands->metadata);
  53         ServerInstance->Modules->AddService(commands->uid);
  54         ServerInstance->Modules->AddService(commands->opertype);
  55         ServerInstance->Modules->AddService(commands->fjoin);
  56         ServerInstance->Modules->AddService(commands->fmode);
  57         ServerInstance->Modules->AddService(commands->ftopic);
  58         ServerInstance->Modules->AddService(commands->fhost);
  59         ServerInstance->Modules->AddService(commands->fident);
  60         ServerInstance->Modules->AddService(commands->fname);
  61         ServerInstance->Timers->AddTimer(RefreshTimer);
  62
  63         Implementation eventlist[] =
  64         {
  65                 I_OnPreCommand, I_OnGetServerDescription, I_OnUserInvite, I_OnPostTopicChange,
  66                 I_OnWallops, I_OnUserNotice, I_OnUserMessage, I_OnBackgroundTimer, I_OnUserJoin,
  67                 I_OnChangeHost, I_OnChangeName, I_OnChangeIdent, I_OnUserPart, I_OnUnloadModule,
  68                 I_OnUserQuit, I_OnUserPostNick, I_OnUserKick, I_OnRemoteKill, I_OnRehash, I_OnPreRehash,
  69                 I_OnOper, I_OnAddLine, I_OnDelLine, I_OnMode, I_OnLoadModule, I_OnStats,
  70                 I_OnSetAway, I_OnPostCommand, I_OnUserConnect, I_OnAcceptConnection
  71         };
  72         ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
  73
  74         delete ServerInstance->PI;
  75         ServerInstance->PI = new SpanningTreeProtocolInterface(this, Utils);
  76         loopCall = false;
  77
  78         // update our local user count
  79         Utils->TreeRoot->SetUserCount(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().c_str()))))
  92                 {
  93                         if (IS_OPER(user))
  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().c_str())) && (!IS_OPER(user)))
 105                 return;
 106         /* Or if the server is hidden and they're not an oper */
 107         else if ((Current->Hidden) && (!IS_OPER(user)))
 108                 return;
 109
 110         user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick.c_str(),Current->GetName().c_str(),
 111                         (Utils->FlatLinks && (!IS_OPER(user))) ? ServerInstance->Config->ServerName.c_str() : Parent.c_str(),
 112                         (Utils->FlatLinks && (!IS_OPER(user))) ? 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") : std::string(""))
 137                         + (hours_up ? (ConvToStr(hours_up) + "h") : std::string(""))
 138                         + (mins_up ? (ConvToStr(mins_up) + "m") : std::string(""))
 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(std::string(":") + ServerInstance->Config->GetSID() + " PING " +
 186                                                                 ServerInstance->Config->GetSID() + " " + s->GetID());
 187                                                 s->LastPingMsec = ts;
 188                                         }
 189                                 }
 190                                 else
 191                                 {
 192                                         // They didn't answer the last ping, if they are locally connected, get rid of them.
 193                                         TreeSocket *sock = s->GetSocket();
 194                                         if (sock)
 195                                         {
 196                                                 sock->SendError("Ping timeout");
 197                                                 sock->Close();
 198                                                 goto restart;
 199                                         }
 200                                 }
 201                         }
 202
 203                         // If warn on ping enabled and not warned and the difference is sufficient and they didn't answer the last ping...
 204                         if ((Utils->PingWarnTime) && (!s->Warned) && (curtime >= s->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!s->AnsweredLastPing()))
 205                         {
 206                                 /* The server hasnt responded, send a warning to opers */
 207                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", s->GetName().c_str(), Utils->PingWarnTime);
 208                                 s->Warned = true;
 209                         }
 210                 }
 211         }
 212 }
 213
 214 void ModuleSpanningTree::ConnectServer(Autoconnect* a, bool on_timer)
 215 {
 216         if (!a)
 217                 return;
 218         for(unsigned int j=0; j < a->servers.size(); j++)
 219         {
 220                 if (Utils->FindServer(a->servers[j]))
 221                 {
 222                         // found something in this block. Should the server fail,
 223                         // we want to start at the start of the list, not in the
 224                         // middle where we left off
 225                         a->position = -1;
 226                         return;
 227                 }
 228         }
 229         if (on_timer && a->position >= 0)
 230                 return;
 231         if (!on_timer && a->position < 0)
 232                 return;
 233
 234         a->position++;
 235         while (a->position < (int)a->servers.size())
 236         {
 237                 Link* x = Utils->FindLink(a->servers[a->position]);
 238                 if (x)
 239                 {
 240                         ServerInstance->SNO->WriteToSnoMask('l', "AUTOCONNECT: Auto-connecting server \002%s\002", x->Name.c_str());
 241                         ConnectServer(x, a);
 242                         return;
 243                 }
 244                 a->position++;
 245         }
 246         // Autoconnect chain has been fully iterated; start at the beginning on the
 247         // next AutoConnectServers run
 248         a->position = -1;
 249 }
 250
 251 void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
 252 {
 253         bool ipvalid = true;
 254
 255         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 256         {
 257                 ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
 258                 return;
 259         }
 260
 261         QueryType start_type = DNS_QUERY_A;
 262         start_type = DNS_QUERY_AAAA;
 263         if (strchr(x->IPAddr.c_str(),':'))
 264         {
 265                 in6_addr n;
 266                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 267                         ipvalid = false;
 268         }
 269         else
 270         {
 271                 in_addr n;
 272                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 273                         ipvalid = false;
 274         }
 275
 276         /* Do we already have an IP? If so, no need to resolve it. */
 277         if (ipvalid)
 278         {
 279                 /* Gave a hook, but it wasnt one we know */
 280                 TreeSocket* newsocket = new TreeSocket(Utils, x->IPAddr, x->Port, x->Timeout ? x->Timeout : 10,
 281                         x->Name.c_str(), x->Bind, y, x->Hook);
 282                 if (newsocket->GetFd() > -1)
 283                 {
 284                         /* Handled automatically on success */
 285                 }
 286                 else
 287                 {
 288                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",
 289                                 x->Name.c_str(), newsocket->getError().c_str());
 290                         ServerInstance->GlobalCulls.AddItem(newsocket);
 291                 }
 292         }
 293         else
 294         {
 295                 try
 296                 {
 297                         bool cached;
 298                         ServernameResolver* snr = new ServernameResolver(Utils, x->IPAddr, x, cached, start_type, y);
 299                         ServerInstance->AddResolver(snr, cached);
 300                 }
 301                 catch (ModuleException& e)
 302                 {
 303                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 304                         ConnectServer(y, false);
 305                 }
 306         }
 307 }
 308
 309 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 310 {
 311         for (std::vector<reference<Autoconnect> >::iterator i = Utils->AutoconnectBlocks.begin(); i < Utils->AutoconnectBlocks.end(); ++i)
 312         {
 313                 Autoconnect* x = *i;
 314                 if (curtime >= x->NextConnectTime)
 315                 {
 316                         x->NextConnectTime = curtime + x->Period;
 317                         ConnectServer(x, true);
 318                 }
 319         }
 320 }
 321
 322 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 323 {
 324         std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin();
 325         while (i != Utils->timeoutlist.end())
 326         {
 327                 TreeSocket* s = i->first;
 328                 std::pair<std::string, int> p = i->second;
 329                 std::map<TreeSocket*, std::pair<std::string, int> >::iterator me = i;
 330                 i++;
 331                 if (curtime > s->age + p.second)
 332                 {
 333                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 334                         Utils->timeoutlist.erase(me);
 335                         s->Close();
 336                         ServerInstance->GlobalCulls.AddItem(s);
 337                 }
 338         }
 339 }
 340
 341 ModResult ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 342 {
 343         // we've already checked if pcnt > 0, so this is safe
 344         TreeServer* found = Utils->FindServerMask(parameters[0]);
 345         if (found)
 346         {
 347                 std::string Version = found->GetVersion();
 348                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 349                 if (found == Utils->TreeRoot)
 350                 {
 351                         ServerInstance->Config->Send005(user);
 352                 }
 353         }
 354         else
 355         {
 356                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 357         }
 358         return MOD_RES_DENY;
 359 }
 360
 361 /* This method will attempt to get a message to a remote user.
 362  */
 363 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 364 {
 365         char text[MAXBUF];
 366         va_list argsPtr;
 367
 368         va_start(argsPtr, format);
 369         vsnprintf(text, MAXBUF, format, argsPtr);
 370         va_end(argsPtr);
 371
 372         if (IS_LOCAL(user))
 373                 user->WriteServ("NOTICE %s :%s", user->nick.c_str(), text);
 374         else
 375                 ServerInstance->PI->SendUserNotice(user, text);
 376 }
 377
 378 ModResult ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 379 {
 380         for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i < Utils->LinkBlocks.end(); i++)
 381         {
 382                 Link* x = *i;
 383                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 384                 {
 385                         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 386                         {
 387                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
 388                                 return MOD_RES_DENY;
 389                         }
 390
 391                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 392                         if (!CheckDupe)
 393                         {
 394                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 395                                 ConnectServer(x);
 396                                 return MOD_RES_DENY;
 397                         }
 398                         else
 399                         {
 400                                 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());
 401                                 return MOD_RES_DENY;
 402                         }
 403                 }
 404         }
 405         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 406         return MOD_RES_DENY;
 407 }
 408
 409 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 410 {
 411         TreeServer* s = Utils->FindServer(servername);
 412         if (s)
 413         {
 414                 description = s->GetDesc();
 415         }
 416 }
 417
 418 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 419 {
 420         if (IS_LOCAL(source))
 421         {
 422                 parameterlist params;
 423                 params.push_back(dest->uuid);
 424                 params.push_back(channel->name);
 425                 params.push_back(ConvToStr(expiry));
 426                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 427         }
 428 }
 429
 430 void ModuleSpanningTree::OnPostTopicChange(User* user, Channel* chan, const std::string &topic)
 431 {
 432         // Drop remote events on the floor.
 433         if (!IS_LOCAL(user))
 434                 return;
 435
 436         parameterlist params;
 437         params.push_back(chan->name);
 438         params.push_back(":"+topic);
 439         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 440 }
 441
 442 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 443 {
 444         if (IS_LOCAL(user))
 445         {
 446                 parameterlist params;
 447                 params.push_back(":"+text);
 448                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 449         }
 450 }
 451
 452 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 453 {
 454         /* Server origin */
 455         if (user == NULL)
 456                 return;
 457
 458         if (target_type == TYPE_USER)
 459         {
 460                 User* d = (User*)dest;
 461                 if (!IS_LOCAL(d) && IS_LOCAL(user))
 462                 {
 463                         parameterlist params;
 464                         params.push_back(d->uuid);
 465                         params.push_back(":"+text);
 466                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 467                 }
 468         }
 469         else if (target_type == TYPE_CHANNEL)
 470         {
 471                 if (IS_LOCAL(user))
 472                 {
 473                         Channel *c = (Channel*)dest;
 474                         if (c)
 475                         {
 476                                 std::string cname = c->name;
 477                                 if (status)
 478                                         cname = status + cname;
 479                                 TreeServerList list;
 480                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 481                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 482                                 {
 483                                         TreeSocket* Sock = i->second->GetSocket();
 484                                         if (Sock)
 485                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 486                                 }
 487                         }
 488                 }
 489         }
 490         else if (target_type == TYPE_SERVER)
 491         {
 492                 if (IS_LOCAL(user))
 493                 {
 494                         char* target = (char*)dest;
 495                         parameterlist par;
 496                         par.push_back(target);
 497                         par.push_back(":"+text);
 498                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 499                 }
 500         }
 501 }
 502
 503 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 504 {
 505         /* Server origin */
 506         if (user == NULL)
 507                 return;
 508
 509         if (target_type == TYPE_USER)
 510         {
 511                 // route private messages which are targetted at clients only to the server
 512                 // which needs to receive them
 513                 User* d = (User*)dest;
 514                 if (!IS_LOCAL(d) && (IS_LOCAL(user)))
 515                 {
 516                         parameterlist params;
 517                         params.push_back(d->uuid);
 518                         params.push_back(":"+text);
 519                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 520                 }
 521         }
 522         else if (target_type == TYPE_CHANNEL)
 523         {
 524                 if (IS_LOCAL(user))
 525                 {
 526                         Channel *c = (Channel*)dest;
 527                         if (c)
 528                         {
 529                                 std::string cname = c->name;
 530                                 if (status)
 531                                         cname = status + cname;
 532                                 TreeServerList list;
 533                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 534                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 535                                 {
 536                                         TreeSocket* Sock = i->second->GetSocket();
 537                                         if (Sock)
 538                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 539                                 }
 540                         }
 541                 }
 542         }
 543         else if (target_type == TYPE_SERVER)
 544         {
 545                 if (IS_LOCAL(user))
 546                 {
 547                         char* target = (char*)dest;
 548                         parameterlist par;
 549                         par.push_back(target);
 550                         par.push_back(":"+text);
 551                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 552                 }
 553         }
 554 }
 555
 556 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 557 {
 558         AutoConnectServers(curtime);
 559         DoPingChecks(curtime);
 560         DoConnectTimeout(curtime);
 561 }
 562
 563 void ModuleSpanningTree::OnUserConnect(LocalUser* user)
 564 {
 565         if (user->quitting)
 566                 return;
 567
 568         parameterlist params;
 569         params.push_back(user->uuid);
 570         params.push_back(ConvToStr(user->age));
 571         params.push_back(user->nick);
 572         params.push_back(user->host);
 573         params.push_back(user->dhost);
 574         params.push_back(user->ident);
 575         params.push_back(user->GetIPString());
 576         params.push_back(ConvToStr(user->signon));
 577         params.push_back("+"+std::string(user->FormatModes(true)));
 578         params.push_back(":"+std::string(user->fullname));
 579         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 580
 581         for(Extensible::ExtensibleStore::const_iterator i = user->GetExtList().begin(); i != user->GetExtList().end(); i++)
 582         {
 583                 ExtensionItem* item = i->first;
 584                 std::string value = item->serialize(FORMAT_NETWORK, user, i->second);
 585                 if (!value.empty())
 586                         ServerInstance->PI->SendMetaData(user, item->name, value);
 587         }
 588
 589         Utils->TreeRoot->SetUserCount(1); // increment by 1
 590 }
 591
 592 void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created, CUList& excepts)
 593 {
 594         // Only do this for local users
 595         if (IS_LOCAL(memb->user))
 596         {
 597                 parameterlist params;
 598                 // set up their permissions and the channel TS with FJOIN.
 599                 // All users are FJOINed now, because a module may specify
 600                 // new joining permissions for the user.
 601                 params.push_back(memb->chan->name);
 602                 params.push_back(ConvToStr(memb->chan->age));
 603                 params.push_back(std::string("+") + memb->chan->ChanModes(true));
 604                 params.push_back(memb->modes+","+std::string(memb->user->uuid));
 605                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 606         }
 607 }
 608
 609 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 610 {
 611         if (user->registered != REG_ALL || !IS_LOCAL(user))
 612                 return;
 613
 614         parameterlist params;
 615         params.push_back(newhost);
 616         Utils->DoOneToMany(user->uuid,"FHOST",params);
 617 }
 618
 619 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 620 {
 621         if (user->registered != REG_ALL || !IS_LOCAL(user))
 622                 return;
 623
 624         parameterlist params;
 625         params.push_back(gecos);
 626         Utils->DoOneToMany(user->uuid,"FNAME",params);
 627 }
 628
 629 void ModuleSpanningTree::OnChangeIdent(User* user, const std::string &ident)
 630 {
 631         // only occurs for local clients
 632         if (user->registered != REG_ALL)
 633                 return;
 634
 635         parameterlist params;
 636         params.push_back(ident);
 637         Utils->DoOneToMany(user->uuid,"FIDENT",params);
 638 }
 639
 640 void ModuleSpanningTree::OnUserPart(Membership* memb, std::string &partmessage, CUList& excepts)
 641 {
 642         if (IS_LOCAL(memb->user))
 643         {
 644                 parameterlist params;
 645                 params.push_back(memb->chan->name);
 646                 if (!partmessage.empty())
 647                         params.push_back(":"+partmessage);
 648                 Utils->DoOneToMany(memb->user->uuid,"PART",params);
 649         }
 650 }
 651
 652 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 653 {
 654         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 655         {
 656                 parameterlist params;
 657
 658                 if (oper_message != reason)
 659                 {
 660                         params.push_back(":"+oper_message);
 661                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 662                 }
 663                 params.clear();
 664                 params.push_back(":"+reason);
 665                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 666         }
 667
 668         // Regardless, We need to modify the user Counts..
 669         TreeServer* SourceServer = Utils->FindServer(user->server);
 670         if (SourceServer)
 671         {
 672                 SourceServer->SetUserCount(-1); // decrement by 1
 673         }
 674 }
 675
 676 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 677 {
 678         if (IS_LOCAL(user))
 679         {
 680                 parameterlist params;
 681                 params.push_back(user->nick);
 682
 683                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 684                  */
 685                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 686                         user->age = ServerInstance->Time();
 687
 688                 params.push_back(ConvToStr(user->age));
 689                 Utils->DoOneToMany(user->uuid,"NICK",params);
 690         }
 691         else if (!loopCall && user->nick == user->uuid)
 692         {
 693                 parameterlist params;
 694                 params.push_back(user->uuid);
 695                 params.push_back(ConvToStr(user->age));
 696                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SAVE",params);
 697         }
 698 }
 699
 700 void ModuleSpanningTree::OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts)
 701 {
 702         parameterlist params;
 703         params.push_back(memb->chan->name);
 704         params.push_back(memb->user->uuid);
 705         params.push_back(":"+reason);
 706         if (IS_LOCAL(source))
 707         {
 708                 Utils->DoOneToMany(source->uuid,"KICK",params);
 709         }
 710         else if (source == ServerInstance->FakeClient)
 711         {
 712                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 713         }
 714 }
 715
 716 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 717 {
 718         if (!IS_LOCAL(source))
 719                 return; // Only start routing if we're origin.
 720
 721         ServerInstance->OperQuit.set(dest, operreason);
 722         parameterlist params;
 723         params.push_back(":"+operreason);
 724         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 725         params.clear();
 726         params.push_back(dest->uuid);
 727         params.push_back(":"+reason);
 728         Utils->DoOneToMany(source->uuid,"KILL",params);
 729 }
 730
 731 void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 732 {
 733         ServerInstance->Logs->Log("remoterehash", DEBUG, "called with param %s", parameter.c_str());
 734
 735         // Send out to other servers
 736         if (!parameter.empty() && parameter[0] != '-')
 737         {
 738                 parameterlist params;
 739                 params.push_back(parameter);
 740                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 741         }
 742 }
 743
 744 void ModuleSpanningTree::OnRehash(User* user)
 745 {
 746         // Re-read config stuff
 747         Utils->ReadConfiguration();
 748 }
 749
 750 void ModuleSpanningTree::OnLoadModule(Module* mod)
 751 {
 752         std::string data;
 753         data.push_back('+');
 754         data.append(mod->ModuleSourceFile);
 755         Version v = mod->GetVersion();
 756         if (!v.link_data.empty())
 757         {
 758                 data.push_back('=');
 759                 data.append(v.link_data);
 760         }
 761         ServerInstance->PI->SendMetaData(NULL, "modules", data);
 762 }
 763
 764 void ModuleSpanningTree::OnUnloadModule(Module* mod)
 765 {
 766         ServerInstance->PI->SendMetaData(NULL, "modules", "-" + mod->ModuleSourceFile);
 767
 768         unsigned int items = Utils->TreeRoot->ChildCount();
 769         for(unsigned int x = 0; x < items; x++)
 770         {
 771                 TreeServer* srv = Utils->TreeRoot->GetChild(x);
 772                 TreeSocket* sock = srv->GetSocket();
 773                 if (sock && sock->GetIOHook() == mod)
 774                 {
 775                         sock->SendError("SSL module unloaded");
 776                         sock->Close();
 777                 }
 778         }
 779 }
 780
 781 void ModuleSpanningTree::RedoConfig(Module* mod)
 782 {
 783 }
 784
 785 // note: the protocol does not allow direct umode +o except
 786 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 787 // locally.
 788 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 789 {
 790         if (IS_LOCAL(user))
 791         {
 792                 parameterlist params;
 793                 params.push_back(opertype);
 794                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 795         }
 796 }
 797
 798 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 799 {
 800         if (!x->IsBurstable() || loopCall)
 801                 return;
 802
 803         char data[MAXBUF];
 804         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
 805         ServerInstance->Config->ServerName.c_str(), (unsigned long)x->set_time, (unsigned long)x->duration, x->reason.c_str());
 806         parameterlist params;
 807         params.push_back(data);
 808
 809         if (!user)
 810         {
 811                 /* Server-set lines */
 812                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 813         }
 814         else if (IS_LOCAL(user))
 815         {
 816                 /* User-set lines */
 817                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 818         }
 819 }
 820
 821 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 822 {
 823         if (x->type == "K")
 824                 return;
 825
 826         char data[MAXBUF];
 827         snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
 828         parameterlist params;
 829         params.push_back(data);
 830
 831         if (!user)
 832         {
 833                 /* Server-unset lines */
 834                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 835         }
 836         else if (IS_LOCAL(user))
 837         {
 838                 /* User-unset lines */
 839                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 840         }
 841 }
 842
 843 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const parameterlist &text, const std::vector<TranslateType> &translate)
 844 {
 845         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 846         {
 847                 parameterlist params;
 848                 std::string command;
 849                 std::string output_text;
 850
 851                 ServerInstance->Parser->TranslateUIDs(translate, text, output_text);
 852
 853                 if (target_type == TYPE_USER)
 854                 {
 855                         User* u = (User*)dest;
 856                         params.push_back(u->uuid);
 857                         params.push_back(output_text);
 858                         command = "MODE";
 859                 }
 860                 else
 861                 {
 862                         Channel* c = (Channel*)dest;
 863                         params.push_back(c->name);
 864                         params.push_back(ConvToStr(c->age));
 865                         params.push_back(output_text);
 866                         command = "FMODE";
 867                 }
 868
 869                 Utils->DoOneToMany(user->uuid, command, params);
 870         }
 871 }
 872
 873 ModResult ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 874 {
 875         if (IS_LOCAL(user))
 876         {
 877                 if (awaymsg.empty())
 878                 {
 879                         parameterlist params;
 880                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 881                 }
 882                 else
 883                 {
 884                         parameterlist params;
 885                         params.push_back(ConvToStr(user->awaytime));
 886                         params.push_back(":" + awaymsg);
 887                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 888                 }
 889         }
 890
 891         return MOD_RES_PASSTHRU;
 892 }
 893
 894 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const parameterlist &modeline, const std::vector<TranslateType> &translate)
 895 {
 896         TreeSocket* s = (TreeSocket*)opaque;
 897         std::string output_text;
 898
 899         ServerInstance->Parser->TranslateUIDs(translate, modeline, output_text);
 900
 901         if (target)
 902         {
 903                 if (target_type == TYPE_USER)
 904                 {
 905                         User* u = (User*)target;
 906                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 907                 }
 908                 else if (target_type == TYPE_CHANNEL)
 909                 {
 910                         Channel* c = (Channel*)target;
 911                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 912                 }
 913         }
 914 }
 915
 916 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, Extensible* target, const std::string &extname, const std::string &extdata)
 917 {
 918         TreeSocket* s = static_cast<TreeSocket*>(opaque);
 919         User* u = dynamic_cast<User*>(target);
 920         Channel* c = dynamic_cast<Channel*>(target);
 921         if (u)
 922                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 923         else if (c)
 924                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 925         else if (!target)
 926                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 927 }
 928
 929 CullResult ModuleSpanningTree::cull()
 930 {
 931         Utils->cull();
 932         ServerInstance->Timers->DelTimer(RefreshTimer);
 933         return this->Module::cull();
 934 }
 935
 936 ModuleSpanningTree::~ModuleSpanningTree()
 937 {
 938         delete ServerInstance->PI;
 939         ServerInstance->PI = new ProtocolInterface;
 940
 941         /* This will also free the listeners */
 942         delete Utils;
 943
 944         delete commands;
 945 }
 946
 947 Version ModuleSpanningTree::GetVersion()
 948 {
 949         return Version("Allows servers to be linked", VF_VENDOR);
 950 }
 951
 952 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 953  * so that any activity it sees is FINAL, e.g. we arent going to send out
 954  * a NICK message before m_cloaking has finished putting the +x on the user,
 955  * etc etc.
 956  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 957  * the module call queue.
 958  */
 959 void ModuleSpanningTree::Prioritize()
 960 {
 961         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 962 }
 963
 964 MODULE_INIT(ModuleSpanningTree)