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         RefreshTimer = NULL;
  35 }
  36
  37 SpanningTreeCommands::SpanningTreeCommands(ModuleSpanningTree* module)
  38         : rconnect(module, module->Utils), rsquit(module, module->Utils),
  39         svsjoin(module), svspart(module), svsnick(module), metadata(module),
  40         uid(module), opertype(module), fjoin(module), fmode(module), ftopic(module),
  41         fhost(module), fident(module), fname(module)
  42 {
  43 }
  44
  45 void ModuleSpanningTree::init()
  46 {
  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         RefreshTimer = new CacheRefreshTimer(Utils);
  62         ServerInstance->Timers->AddTimer(RefreshTimer);
  63
  64         Implementation eventlist[] =
  65         {
  66                 I_OnPreCommand, I_OnGetServerDescription, I_OnUserInvite, I_OnPostTopicChange,
  67                 I_OnWallops, I_OnUserNotice, I_OnUserMessage, I_OnBackgroundTimer, I_OnUserJoin,
  68                 I_OnChangeHost, I_OnChangeName, I_OnChangeIdent, I_OnUserPart, I_OnUnloadModule,
  69                 I_OnUserQuit, I_OnUserPostNick, I_OnUserKick, I_OnRemoteKill, I_OnRehash, I_OnPreRehash,
  70                 I_OnOper, I_OnAddLine, I_OnDelLine, I_OnMode, I_OnLoadModule, I_OnStats,
  71                 I_OnSetAway, I_OnPostCommand, I_OnUserConnect, I_OnAcceptConnection
  72         };
  73         ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
  74
  75         delete ServerInstance->PI;
  76         ServerInstance->PI = new SpanningTreeProtocolInterface(this, Utils);
  77         loopCall = false;
  78
  79         // update our local user count
  80         Utils->TreeRoot->SetUserCount(ServerInstance->Users->local_users.size());
  81 }
  82
  83 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
  84 {
  85         std::string Parent = Utils->TreeRoot->GetName();
  86         if (Current->GetParent())
  87         {
  88                 Parent = Current->GetParent()->GetName();
  89         }
  90         for (unsigned int q = 0; q < Current->ChildCount(); q++)
  91         {
  92                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str()))))
  93                 {
  94                         if (IS_OPER(user))
  95                         {
  96                                  ShowLinks(Current->GetChild(q),user,hops+1);
  97                         }
  98                 }
  99                 else
 100                 {
 101                         ShowLinks(Current->GetChild(q),user,hops+1);
 102                 }
 103         }
 104         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
 105         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!IS_OPER(user)))
 106                 return;
 107         /* Or if the server is hidden and they're not an oper */
 108         else if ((Current->Hidden) && (!IS_OPER(user)))
 109                 return;
 110
 111         user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick.c_str(),Current->GetName().c_str(),
 112                         (Utils->FlatLinks && (!IS_OPER(user))) ? ServerInstance->Config->ServerName.c_str() : Parent.c_str(),
 113                         (Utils->FlatLinks && (!IS_OPER(user))) ? 0 : hops,
 114                         Current->GetDesc().c_str());
 115 }
 116
 117 int ModuleSpanningTree::CountServs()
 118 {
 119         return Utils->serverlist.size();
 120 }
 121
 122 void ModuleSpanningTree::HandleLinks(const std::vector<std::string>& parameters, User* user)
 123 {
 124         ShowLinks(Utils->TreeRoot,user,0);
 125         user->WriteNumeric(365, "%s * :End of /LINKS list.",user->nick.c_str());
 126         return;
 127 }
 128
 129 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 130 {
 131         time_t mins_up = secs / 60;
 132         time_t hours_up = mins_up / 60;
 133         time_t days_up = hours_up / 24;
 134         secs = secs % 60;
 135         mins_up = mins_up % 60;
 136         hours_up = hours_up % 24;
 137         return ((days_up ? (ConvToStr(days_up) + "d") : std::string(""))
 138                         + (hours_up ? (ConvToStr(hours_up) + "h") : std::string(""))
 139                         + (mins_up ? (ConvToStr(mins_up) + "m") : std::string(""))
 140                         + ConvToStr(secs) + "s");
 141 }
 142
 143 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 144 {
 145         /*
 146          * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 147          * This prevents lost REMOTECONNECT notices
 148          */
 149         long ts = ServerInstance->Time() * 1000 + (ServerInstance->Time_ns() / 1000000);
 150
 151 restart:
 152         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 153         {
 154                 TreeServer *s = i->second;
 155
 156                 if (s->GetSocket() && s->GetSocket()->GetLinkState() == DYING)
 157                 {
 158                         s->GetSocket()->Close();
 159                         goto restart;
 160                 }
 161
 162                 // Fix for bug #792, do not ping servers that are not connected yet!
 163                 // Remote servers have Socket == NULL and local connected servers have
 164                 // Socket->LinkState == CONNECTED
 165                 if (s->GetSocket() && s->GetSocket()->GetLinkState() != CONNECTED)
 166                         continue;
 167
 168                 // Now do PING checks on all servers
 169                 TreeServer *mts = Utils->BestRouteTo(s->GetID());
 170
 171                 if (mts)
 172                 {
 173                         // Only ping if this server needs one
 174                         if (curtime >= s->NextPingTime())
 175                         {
 176                                 // And if they answered the last
 177                                 if (s->AnsweredLastPing())
 178                                 {
 179                                         // They did, send a ping to them
 180                                         s->SetNextPingTime(curtime + Utils->PingFreq);
 181                                         TreeSocket *tsock = mts->GetSocket();
 182
 183                                         // ... if we can find a proper route to them
 184                                         if (tsock)
 185                                         {
 186                                                 tsock->WriteLine(std::string(":") + ServerInstance->Config->GetSID() + " PING " +
 187                                                                 ServerInstance->Config->GetSID() + " " + s->GetID());
 188                                                 s->LastPingMsec = ts;
 189                                         }
 190                                 }
 191                                 else
 192                                 {
 193                                         // They didn't answer the last ping, if they are locally connected, get rid of them.
 194                                         TreeSocket *sock = s->GetSocket();
 195                                         if (sock)
 196                                         {
 197                                                 sock->SendError("Ping timeout");
 198                                                 sock->Close();
 199                                                 goto restart;
 200                                         }
 201                                 }
 202                         }
 203
 204                         // If warn on ping enabled and not warned and the difference is sufficient and they didn't answer the last ping...
 205                         if ((Utils->PingWarnTime) && (!s->Warned) && (curtime >= s->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!s->AnsweredLastPing()))
 206                         {
 207                                 /* The server hasnt responded, send a warning to opers */
 208                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", s->GetName().c_str(), Utils->PingWarnTime);
 209                                 s->Warned = true;
 210                         }
 211                 }
 212         }
 213 }
 214
 215 void ModuleSpanningTree::ConnectServer(Autoconnect* a, bool on_timer)
 216 {
 217         if (!a)
 218                 return;
 219         for(unsigned int j=0; j < a->servers.size(); j++)
 220         {
 221                 if (Utils->FindServer(a->servers[j]))
 222                 {
 223                         // found something in this block. Should the server fail,
 224                         // we want to start at the start of the list, not in the
 225                         // middle where we left off
 226                         a->position = -1;
 227                         return;
 228                 }
 229         }
 230         if (on_timer && a->position >= 0)
 231                 return;
 232         if (!on_timer && a->position < 0)
 233                 return;
 234
 235         a->position++;
 236         while (a->position < (int)a->servers.size())
 237         {
 238                 Link* x = Utils->FindLink(a->servers[a->position]);
 239                 if (x)
 240                 {
 241                         ServerInstance->SNO->WriteToSnoMask('l', "AUTOCONNECT: Auto-connecting server \002%s\002", x->Name.c_str());
 242                         ConnectServer(x, a);
 243                         return;
 244                 }
 245                 a->position++;
 246         }
 247         // Autoconnect chain has been fully iterated; start at the beginning on the
 248         // next AutoConnectServers run
 249         a->position = -1;
 250 }
 251
 252 void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
 253 {
 254         bool ipvalid = true;
 255
 256         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 257         {
 258                 ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
 259                 return;
 260         }
 261
 262         QueryType start_type = DNS_QUERY_A;
 263         start_type = DNS_QUERY_AAAA;
 264         if (strchr(x->IPAddr.c_str(),':'))
 265         {
 266                 in6_addr n;
 267                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 268                         ipvalid = false;
 269         }
 270         else
 271         {
 272                 in_addr n;
 273                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 274                         ipvalid = false;
 275         }
 276
 277         /* Do we already have an IP? If so, no need to resolve it. */
 278         if (ipvalid)
 279         {
 280                 /* Gave a hook, but it wasnt one we know */
 281                 TreeSocket* newsocket = new TreeSocket(Utils, x, y, x->IPAddr);
 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 (s->GetLinkState() == DYING)
 332                 {
 333                         Utils->timeoutlist.erase(me);
 334                         s->Close();
 335                 }
 336                 else if (curtime > s->age + p.second)
 337                 {
 338                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 339                         Utils->timeoutlist.erase(me);
 340                         s->Close();
 341                 }
 342         }
 343 }
 344
 345 ModResult ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 346 {
 347         // we've already checked if pcnt > 0, so this is safe
 348         TreeServer* found = Utils->FindServerMask(parameters[0]);
 349         if (found)
 350         {
 351                 std::string Version = found->GetVersion();
 352                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 353                 if (found == Utils->TreeRoot)
 354                 {
 355                         ServerInstance->Config->Send005(user);
 356                 }
 357         }
 358         else
 359         {
 360                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 361         }
 362         return MOD_RES_DENY;
 363 }
 364
 365 /* This method will attempt to get a message to a remote user.
 366  */
 367 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 368 {
 369         char text[MAXBUF];
 370         va_list argsPtr;
 371
 372         va_start(argsPtr, format);
 373         vsnprintf(text, MAXBUF, format, argsPtr);
 374         va_end(argsPtr);
 375
 376         if (IS_LOCAL(user))
 377                 user->WriteServ("NOTICE %s :%s", user->nick.c_str(), text);
 378         else
 379                 ServerInstance->PI->SendUserNotice(user, text);
 380 }
 381
 382 ModResult ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 383 {
 384         for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i < Utils->LinkBlocks.end(); i++)
 385         {
 386                 Link* x = *i;
 387                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 388                 {
 389                         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 390                         {
 391                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
 392                                 return MOD_RES_DENY;
 393                         }
 394
 395                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 396                         if (!CheckDupe)
 397                         {
 398                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 399                                 ConnectServer(x);
 400                                 return MOD_RES_DENY;
 401                         }
 402                         else
 403                         {
 404                                 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());
 405                                 return MOD_RES_DENY;
 406                         }
 407                 }
 408         }
 409         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 410         return MOD_RES_DENY;
 411 }
 412
 413 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 414 {
 415         TreeServer* s = Utils->FindServer(servername);
 416         if (s)
 417         {
 418                 description = s->GetDesc();
 419         }
 420 }
 421
 422 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 423 {
 424         if (IS_LOCAL(source))
 425         {
 426                 parameterlist params;
 427                 params.push_back(dest->uuid);
 428                 params.push_back(channel->name);
 429                 params.push_back(ConvToStr(expiry));
 430                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 431         }
 432 }
 433
 434 void ModuleSpanningTree::OnPostTopicChange(User* user, Channel* chan, const std::string &topic)
 435 {
 436         // Drop remote events on the floor.
 437         if (!IS_LOCAL(user))
 438                 return;
 439
 440         parameterlist params;
 441         params.push_back(chan->name);
 442         params.push_back(":"+topic);
 443         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 444 }
 445
 446 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 447 {
 448         if (IS_LOCAL(user))
 449         {
 450                 parameterlist params;
 451                 params.push_back(":"+text);
 452                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 453         }
 454 }
 455
 456 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 457 {
 458         /* Server origin */
 459         if (user == NULL)
 460                 return;
 461
 462         if (target_type == TYPE_USER)
 463         {
 464                 User* d = (User*)dest;
 465                 if (!IS_LOCAL(d) && IS_LOCAL(user))
 466                 {
 467                         parameterlist params;
 468                         params.push_back(d->uuid);
 469                         params.push_back(":"+text);
 470                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 471                 }
 472         }
 473         else if (target_type == TYPE_CHANNEL)
 474         {
 475                 if (IS_LOCAL(user))
 476                 {
 477                         Channel *c = (Channel*)dest;
 478                         if (c)
 479                         {
 480                                 std::string cname = c->name;
 481                                 if (status)
 482                                         cname = status + cname;
 483                                 TreeServerList list;
 484                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 485                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 486                                 {
 487                                         TreeSocket* Sock = i->second->GetSocket();
 488                                         if (Sock)
 489                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 490                                 }
 491                         }
 492                 }
 493         }
 494         else if (target_type == TYPE_SERVER)
 495         {
 496                 if (IS_LOCAL(user))
 497                 {
 498                         char* target = (char*)dest;
 499                         parameterlist par;
 500                         par.push_back(target);
 501                         par.push_back(":"+text);
 502                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 503                 }
 504         }
 505 }
 506
 507 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 508 {
 509         /* Server origin */
 510         if (user == NULL)
 511                 return;
 512
 513         if (target_type == TYPE_USER)
 514         {
 515                 // route private messages which are targetted at clients only to the server
 516                 // which needs to receive them
 517                 User* d = (User*)dest;
 518                 if (!IS_LOCAL(d) && (IS_LOCAL(user)))
 519                 {
 520                         parameterlist params;
 521                         params.push_back(d->uuid);
 522                         params.push_back(":"+text);
 523                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 524                 }
 525         }
 526         else if (target_type == TYPE_CHANNEL)
 527         {
 528                 if (IS_LOCAL(user))
 529                 {
 530                         Channel *c = (Channel*)dest;
 531                         if (c)
 532                         {
 533                                 std::string cname = c->name;
 534                                 if (status)
 535                                         cname = status + cname;
 536                                 TreeServerList list;
 537                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 538                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 539                                 {
 540                                         TreeSocket* Sock = i->second->GetSocket();
 541                                         if (Sock)
 542                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 543                                 }
 544                         }
 545                 }
 546         }
 547         else if (target_type == TYPE_SERVER)
 548         {
 549                 if (IS_LOCAL(user))
 550                 {
 551                         char* target = (char*)dest;
 552                         parameterlist par;
 553                         par.push_back(target);
 554                         par.push_back(":"+text);
 555                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 556                 }
 557         }
 558 }
 559
 560 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 561 {
 562         AutoConnectServers(curtime);
 563         DoPingChecks(curtime);
 564         DoConnectTimeout(curtime);
 565 }
 566
 567 void ModuleSpanningTree::OnUserConnect(LocalUser* user)
 568 {
 569         if (user->quitting)
 570                 return;
 571
 572         parameterlist params;
 573         params.push_back(user->uuid);
 574         params.push_back(ConvToStr(user->age));
 575         params.push_back(user->nick);
 576         params.push_back(user->host);
 577         params.push_back(user->dhost);
 578         params.push_back(user->ident);
 579         params.push_back(user->GetIPString());
 580         params.push_back(ConvToStr(user->signon));
 581         params.push_back("+"+std::string(user->FormatModes(true)));
 582         params.push_back(":"+std::string(user->fullname));
 583         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 584
 585         if (IS_OPER(user))
 586         {
 587                 params.clear();
 588                 params.push_back(user->oper->name);
 589                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 590         }
 591
 592         for(Extensible::ExtensibleStore::const_iterator i = user->GetExtList().begin(); i != user->GetExtList().end(); i++)
 593         {
 594                 ExtensionItem* item = i->first;
 595                 std::string value = item->serialize(FORMAT_NETWORK, user, i->second);
 596                 if (!value.empty())
 597                         ServerInstance->PI->SendMetaData(user, item->name, value);
 598         }
 599
 600         Utils->TreeRoot->SetUserCount(1); // increment by 1
 601 }
 602
 603 void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created, CUList& excepts)
 604 {
 605         // Only do this for local users
 606         if (IS_LOCAL(memb->user))
 607         {
 608                 parameterlist params;
 609                 // set up their permissions and the channel TS with FJOIN.
 610                 // All users are FJOINed now, because a module may specify
 611                 // new joining permissions for the user.
 612                 params.push_back(memb->chan->name);
 613                 params.push_back(ConvToStr(memb->chan->age));
 614                 params.push_back(std::string("+") + memb->chan->ChanModes(true));
 615                 params.push_back(memb->modes+","+std::string(memb->user->uuid));
 616                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 617         }
 618 }
 619
 620 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 621 {
 622         if (user->registered != REG_ALL || !IS_LOCAL(user))
 623                 return;
 624
 625         parameterlist params;
 626         params.push_back(newhost);
 627         Utils->DoOneToMany(user->uuid,"FHOST",params);
 628 }
 629
 630 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 631 {
 632         if (user->registered != REG_ALL || !IS_LOCAL(user))
 633                 return;
 634
 635         parameterlist params;
 636         params.push_back(gecos);
 637         Utils->DoOneToMany(user->uuid,"FNAME",params);
 638 }
 639
 640 void ModuleSpanningTree::OnChangeIdent(User* user, const std::string &ident)
 641 {
 642         // only occurs for local clients
 643         if (user->registered != REG_ALL)
 644                 return;
 645
 646         parameterlist params;
 647         params.push_back(ident);
 648         Utils->DoOneToMany(user->uuid,"FIDENT",params);
 649 }
 650
 651 void ModuleSpanningTree::OnUserPart(Membership* memb, std::string &partmessage, CUList& excepts)
 652 {
 653         if (IS_LOCAL(memb->user))
 654         {
 655                 parameterlist params;
 656                 params.push_back(memb->chan->name);
 657                 if (!partmessage.empty())
 658                         params.push_back(":"+partmessage);
 659                 Utils->DoOneToMany(memb->user->uuid,"PART",params);
 660         }
 661 }
 662
 663 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 664 {
 665         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 666         {
 667                 parameterlist params;
 668
 669                 if (oper_message != reason)
 670                 {
 671                         params.push_back(":"+oper_message);
 672                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 673                 }
 674                 params.clear();
 675                 params.push_back(":"+reason);
 676                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 677         }
 678
 679         // Regardless, We need to modify the user Counts..
 680         TreeServer* SourceServer = Utils->FindServer(user->server);
 681         if (SourceServer)
 682         {
 683                 SourceServer->SetUserCount(-1); // decrement by 1
 684         }
 685 }
 686
 687 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 688 {
 689         if (IS_LOCAL(user))
 690         {
 691                 parameterlist params;
 692                 params.push_back(user->nick);
 693
 694                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 695                  */
 696                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 697                         user->age = ServerInstance->Time();
 698
 699                 params.push_back(ConvToStr(user->age));
 700                 Utils->DoOneToMany(user->uuid,"NICK",params);
 701         }
 702         else if (!loopCall && user->nick == user->uuid)
 703         {
 704                 parameterlist params;
 705                 params.push_back(user->uuid);
 706                 params.push_back(ConvToStr(user->age));
 707                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SAVE",params);
 708         }
 709 }
 710
 711 void ModuleSpanningTree::OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts)
 712 {
 713         parameterlist params;
 714         params.push_back(memb->chan->name);
 715         params.push_back(memb->user->uuid);
 716         params.push_back(":"+reason);
 717         if (IS_LOCAL(source))
 718         {
 719                 Utils->DoOneToMany(source->uuid,"KICK",params);
 720         }
 721         else if (source == ServerInstance->FakeClient)
 722         {
 723                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 724         }
 725 }
 726
 727 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 728 {
 729         if (!IS_LOCAL(source))
 730                 return; // Only start routing if we're origin.
 731
 732         ServerInstance->OperQuit.set(dest, operreason);
 733         parameterlist params;
 734         params.push_back(":"+operreason);
 735         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 736         params.clear();
 737         params.push_back(dest->uuid);
 738         params.push_back(":"+reason);
 739         Utils->DoOneToMany(source->uuid,"KILL",params);
 740 }
 741
 742 void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 743 {
 744         ServerInstance->Logs->Log("remoterehash", DEBUG, "called with param %s", parameter.c_str());
 745
 746         // Send out to other servers
 747         if (!parameter.empty() && parameter[0] != '-')
 748         {
 749                 parameterlist params;
 750                 params.push_back(parameter);
 751                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 752         }
 753 }
 754
 755 void ModuleSpanningTree::OnRehash(User* user)
 756 {
 757         // Re-read config stuff
 758         Utils->ReadConfiguration();
 759 }
 760
 761 void ModuleSpanningTree::OnLoadModule(Module* mod)
 762 {
 763         std::string data;
 764         data.push_back('+');
 765         data.append(mod->ModuleSourceFile);
 766         Version v = mod->GetVersion();
 767         if (!v.link_data.empty())
 768         {
 769                 data.push_back('=');
 770                 data.append(v.link_data);
 771         }
 772         ServerInstance->PI->SendMetaData(NULL, "modules", data);
 773 }
 774
 775 void ModuleSpanningTree::OnUnloadModule(Module* mod)
 776 {
 777         ServerInstance->PI->SendMetaData(NULL, "modules", "-" + mod->ModuleSourceFile);
 778
 779         unsigned int items = Utils->TreeRoot->ChildCount();
 780         for(unsigned int x = 0; x < items; x++)
 781         {
 782                 TreeServer* srv = Utils->TreeRoot->GetChild(x);
 783                 TreeSocket* sock = srv->GetSocket();
 784                 if (sock && sock->GetIOHook() == mod)
 785                 {
 786                         sock->SendError("SSL module unloaded");
 787                         sock->Close();
 788                 }
 789         }
 790 }
 791
 792 void ModuleSpanningTree::RedoConfig(Module* mod)
 793 {
 794 }
 795
 796 // note: the protocol does not allow direct umode +o except
 797 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 798 // locally.
 799 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 800 {
 801         if (user->registered != REG_ALL || !IS_LOCAL(user))
 802                 return;
 803         parameterlist params;
 804         params.push_back(opertype);
 805         Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 806 }
 807
 808 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 809 {
 810         if (!x->IsBurstable() || loopCall)
 811                 return;
 812
 813         char data[MAXBUF];
 814         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
 815         ServerInstance->Config->ServerName.c_str(), (unsigned long)x->set_time, (unsigned long)x->duration, x->reason.c_str());
 816         parameterlist params;
 817         params.push_back(data);
 818
 819         if (!user)
 820         {
 821                 /* Server-set lines */
 822                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 823         }
 824         else if (IS_LOCAL(user))
 825         {
 826                 /* User-set lines */
 827                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 828         }
 829 }
 830
 831 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 832 {
 833         if (!x->IsBurstable() || loopCall)
 834                 return;
 835
 836         char data[MAXBUF];
 837         snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
 838         parameterlist params;
 839         params.push_back(data);
 840
 841         if (!user)
 842         {
 843                 /* Server-unset lines */
 844                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 845         }
 846         else if (IS_LOCAL(user))
 847         {
 848                 /* User-unset lines */
 849                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 850         }
 851 }
 852
 853 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const parameterlist &text, const std::vector<TranslateType> &translate)
 854 {
 855         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 856         {
 857                 parameterlist params;
 858                 std::string command;
 859                 std::string output_text;
 860
 861                 ServerInstance->Parser->TranslateUIDs(translate, text, output_text);
 862
 863                 if (target_type == TYPE_USER)
 864                 {
 865                         User* u = (User*)dest;
 866                         params.push_back(u->uuid);
 867                         params.push_back(output_text);
 868                         command = "MODE";
 869                 }
 870                 else
 871                 {
 872                         Channel* c = (Channel*)dest;
 873                         params.push_back(c->name);
 874                         params.push_back(ConvToStr(c->age));
 875                         params.push_back(output_text);
 876                         command = "FMODE";
 877                 }
 878
 879                 Utils->DoOneToMany(user->uuid, command, params);
 880         }
 881 }
 882
 883 ModResult ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 884 {
 885         if (IS_LOCAL(user))
 886         {
 887                 if (awaymsg.empty())
 888                 {
 889                         parameterlist params;
 890                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 891                 }
 892                 else
 893                 {
 894                         parameterlist params;
 895                         params.push_back(ConvToStr(user->awaytime));
 896                         params.push_back(":" + awaymsg);
 897                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 898                 }
 899         }
 900
 901         return MOD_RES_PASSTHRU;
 902 }
 903
 904 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const parameterlist &modeline, const std::vector<TranslateType> &translate)
 905 {
 906         TreeSocket* s = (TreeSocket*)opaque;
 907         std::string output_text;
 908
 909         ServerInstance->Parser->TranslateUIDs(translate, modeline, output_text);
 910
 911         if (target)
 912         {
 913                 if (target_type == TYPE_USER)
 914                 {
 915                         User* u = (User*)target;
 916                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 917                 }
 918                 else if (target_type == TYPE_CHANNEL)
 919                 {
 920                         Channel* c = (Channel*)target;
 921                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 922                 }
 923         }
 924 }
 925
 926 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, Extensible* target, const std::string &extname, const std::string &extdata)
 927 {
 928         TreeSocket* s = static_cast<TreeSocket*>(opaque);
 929         User* u = dynamic_cast<User*>(target);
 930         Channel* c = dynamic_cast<Channel*>(target);
 931         if (u)
 932                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 933         else if (c)
 934                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 935         else if (!target)
 936                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 937 }
 938
 939 CullResult ModuleSpanningTree::cull()
 940 {
 941         Utils->cull();
 942         ServerInstance->Timers->DelTimer(RefreshTimer);
 943         return this->Module::cull();
 944 }
 945
 946 ModuleSpanningTree::~ModuleSpanningTree()
 947 {
 948         delete ServerInstance->PI;
 949         ServerInstance->PI = new ProtocolInterface;
 950
 951         /* This will also free the listeners */
 952         delete Utils;
 953
 954         delete commands;
 955 }
 956
 957 Version ModuleSpanningTree::GetVersion()
 958 {
 959         return Version("Allows servers to be linked", VF_VENDOR);
 960 }
 961
 962 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 963  * so that any activity it sees is FINAL, e.g. we arent going to send out
 964  * a NICK message before m_cloaking has finished putting the +x on the user,
 965  * etc etc.
 966  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 967  * the module call queue.
 968  */
 969 void ModuleSpanningTree::Prioritize()
 970 {
 971         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 972 }
 973
 974 MODULE_INIT(ModuleSpanningTree)