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         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 151         {
 152                 TreeServer *s = i->second;
 153
 154                 if (s->GetSocket() && s->GetSocket()->GetLinkState() == DYING)
 155                 {
 156                         s->GetSocket()->SendError("Ping timeout");
 157                         s->GetSocket()->Squit(s,"Ping timeout");
 158                         s->GetSocket()->Close();
 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->Squit(s,"Ping timeout");
 198                                                 sock->Close();
 199                                                 return;
 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->IPAddr, x->Port, x->Timeout ? x->Timeout : 10,
 282                         x->Name.c_str(), x->Bind, y, x->Hook);
 283                 if (newsocket->GetFd() > -1)
 284                 {
 285                         /* Handled automatically on success */
 286                 }
 287                 else
 288                 {
 289                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",
 290                                 x->Name.c_str(), newsocket->getError().c_str());
 291                         ServerInstance->GlobalCulls.AddItem(newsocket);
 292                 }
 293         }
 294         else
 295         {
 296                 try
 297                 {
 298                         bool cached;
 299                         ServernameResolver* snr = new ServernameResolver(Utils, x->IPAddr, x, cached, start_type, y);
 300                         ServerInstance->AddResolver(snr, cached);
 301                 }
 302                 catch (ModuleException& e)
 303                 {
 304                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 305                         ConnectServer(y, false);
 306                 }
 307         }
 308 }
 309
 310 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 311 {
 312         for (std::vector<reference<Autoconnect> >::iterator i = Utils->AutoconnectBlocks.begin(); i < Utils->AutoconnectBlocks.end(); ++i)
 313         {
 314                 Autoconnect* x = *i;
 315                 if (curtime >= x->NextConnectTime)
 316                 {
 317                         x->NextConnectTime = curtime + x->Period;
 318                         ConnectServer(x, true);
 319                 }
 320         }
 321 }
 322
 323 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 324 {
 325         std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin();
 326         while (i != Utils->timeoutlist.end())
 327         {
 328                 TreeSocket* s = i->first;
 329                 std::pair<std::string, int> p = i->second;
 330                 std::map<TreeSocket*, std::pair<std::string, int> >::iterator me = i;
 331                 i++;
 332                 if (curtime > s->age + p.second)
 333                 {
 334                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 335                         Utils->timeoutlist.erase(me);
 336                         s->Close();
 337                         ServerInstance->GlobalCulls.AddItem(s);
 338                 }
 339         }
 340 }
 341
 342 ModResult ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 343 {
 344         // we've already checked if pcnt > 0, so this is safe
 345         TreeServer* found = Utils->FindServerMask(parameters[0]);
 346         if (found)
 347         {
 348                 std::string Version = found->GetVersion();
 349                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 350                 if (found == Utils->TreeRoot)
 351                 {
 352                         ServerInstance->Config->Send005(user);
 353                 }
 354         }
 355         else
 356         {
 357                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 358         }
 359         return MOD_RES_DENY;
 360 }
 361
 362 /* This method will attempt to get a message to a remote user.
 363  */
 364 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 365 {
 366         char text[MAXBUF];
 367         va_list argsPtr;
 368
 369         va_start(argsPtr, format);
 370         vsnprintf(text, MAXBUF, format, argsPtr);
 371         va_end(argsPtr);
 372
 373         if (IS_LOCAL(user))
 374                 user->WriteServ("NOTICE %s :%s", user->nick.c_str(), text);
 375         else
 376                 ServerInstance->PI->SendUserNotice(user, text);
 377 }
 378
 379 ModResult ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 380 {
 381         for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i < Utils->LinkBlocks.end(); i++)
 382         {
 383                 Link* x = *i;
 384                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 385                 {
 386                         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 387                         {
 388                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
 389                                 return MOD_RES_DENY;
 390                         }
 391
 392                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 393                         if (!CheckDupe)
 394                         {
 395                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 396                                 ConnectServer(x);
 397                                 return MOD_RES_DENY;
 398                         }
 399                         else
 400                         {
 401                                 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());
 402                                 return MOD_RES_DENY;
 403                         }
 404                 }
 405         }
 406         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 407         return MOD_RES_DENY;
 408 }
 409
 410 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 411 {
 412         TreeServer* s = Utils->FindServer(servername);
 413         if (s)
 414         {
 415                 description = s->GetDesc();
 416         }
 417 }
 418
 419 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 420 {
 421         if (IS_LOCAL(source))
 422         {
 423                 parameterlist params;
 424                 params.push_back(dest->uuid);
 425                 params.push_back(channel->name);
 426                 params.push_back(ConvToStr(expiry));
 427                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 428         }
 429 }
 430
 431 void ModuleSpanningTree::OnPostTopicChange(User* user, Channel* chan, const std::string &topic)
 432 {
 433         // Drop remote events on the floor.
 434         if (!IS_LOCAL(user))
 435                 return;
 436
 437         parameterlist params;
 438         params.push_back(chan->name);
 439         params.push_back(":"+topic);
 440         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 441 }
 442
 443 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 444 {
 445         if (IS_LOCAL(user))
 446         {
 447                 parameterlist params;
 448                 params.push_back(":"+text);
 449                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 450         }
 451 }
 452
 453 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 454 {
 455         /* Server origin */
 456         if (user == NULL)
 457                 return;
 458
 459         if (target_type == TYPE_USER)
 460         {
 461                 User* d = (User*)dest;
 462                 if (!IS_LOCAL(d) && IS_LOCAL(user))
 463                 {
 464                         parameterlist params;
 465                         params.push_back(d->uuid);
 466                         params.push_back(":"+text);
 467                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 468                 }
 469         }
 470         else if (target_type == TYPE_CHANNEL)
 471         {
 472                 if (IS_LOCAL(user))
 473                 {
 474                         Channel *c = (Channel*)dest;
 475                         if (c)
 476                         {
 477                                 std::string cname = c->name;
 478                                 if (status)
 479                                         cname = status + cname;
 480                                 TreeServerList list;
 481                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 482                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 483                                 {
 484                                         TreeSocket* Sock = i->second->GetSocket();
 485                                         if (Sock)
 486                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 487                                 }
 488                         }
 489                 }
 490         }
 491         else if (target_type == TYPE_SERVER)
 492         {
 493                 if (IS_LOCAL(user))
 494                 {
 495                         char* target = (char*)dest;
 496                         parameterlist par;
 497                         par.push_back(target);
 498                         par.push_back(":"+text);
 499                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 500                 }
 501         }
 502 }
 503
 504 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 505 {
 506         /* Server origin */
 507         if (user == NULL)
 508                 return;
 509
 510         if (target_type == TYPE_USER)
 511         {
 512                 // route private messages which are targetted at clients only to the server
 513                 // which needs to receive them
 514                 User* d = (User*)dest;
 515                 if (!IS_LOCAL(d) && (IS_LOCAL(user)))
 516                 {
 517                         parameterlist params;
 518                         params.push_back(d->uuid);
 519                         params.push_back(":"+text);
 520                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 521                 }
 522         }
 523         else if (target_type == TYPE_CHANNEL)
 524         {
 525                 if (IS_LOCAL(user))
 526                 {
 527                         Channel *c = (Channel*)dest;
 528                         if (c)
 529                         {
 530                                 std::string cname = c->name;
 531                                 if (status)
 532                                         cname = status + cname;
 533                                 TreeServerList list;
 534                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 535                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 536                                 {
 537                                         TreeSocket* Sock = i->second->GetSocket();
 538                                         if (Sock)
 539                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 540                                 }
 541                         }
 542                 }
 543         }
 544         else if (target_type == TYPE_SERVER)
 545         {
 546                 if (IS_LOCAL(user))
 547                 {
 548                         char* target = (char*)dest;
 549                         parameterlist par;
 550                         par.push_back(target);
 551                         par.push_back(":"+text);
 552                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 553                 }
 554         }
 555 }
 556
 557 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 558 {
 559         AutoConnectServers(curtime);
 560         DoPingChecks(curtime);
 561         DoConnectTimeout(curtime);
 562 }
 563
 564 void ModuleSpanningTree::OnUserConnect(LocalUser* user)
 565 {
 566         if (user->quitting)
 567                 return;
 568
 569         parameterlist params;
 570         params.push_back(user->uuid);
 571         params.push_back(ConvToStr(user->age));
 572         params.push_back(user->nick);
 573         params.push_back(user->host);
 574         params.push_back(user->dhost);
 575         params.push_back(user->ident);
 576         params.push_back(user->GetIPString());
 577         params.push_back(ConvToStr(user->signon));
 578         params.push_back("+"+std::string(user->FormatModes(true)));
 579         params.push_back(":"+std::string(user->fullname));
 580         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 581
 582         for(Extensible::ExtensibleStore::const_iterator i = user->GetExtList().begin(); i != user->GetExtList().end(); i++)
 583         {
 584                 ExtensionItem* item = i->first;
 585                 std::string value = item->serialize(FORMAT_NETWORK, user, i->second);
 586                 if (!value.empty())
 587                         ServerInstance->PI->SendMetaData(user, item->name, value);
 588         }
 589
 590         Utils->TreeRoot->SetUserCount(1); // increment by 1
 591 }
 592
 593 void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created, CUList& excepts)
 594 {
 595         // Only do this for local users
 596         if (IS_LOCAL(memb->user))
 597         {
 598                 parameterlist params;
 599                 // set up their permissions and the channel TS with FJOIN.
 600                 // All users are FJOINed now, because a module may specify
 601                 // new joining permissions for the user.
 602                 params.push_back(memb->chan->name);
 603                 params.push_back(ConvToStr(memb->chan->age));
 604                 params.push_back(std::string("+") + memb->chan->ChanModes(true));
 605                 params.push_back(memb->modes+","+std::string(memb->user->uuid));
 606                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 607         }
 608 }
 609
 610 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 611 {
 612         if (user->registered != REG_ALL || !IS_LOCAL(user))
 613                 return;
 614
 615         parameterlist params;
 616         params.push_back(newhost);
 617         Utils->DoOneToMany(user->uuid,"FHOST",params);
 618 }
 619
 620 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 621 {
 622         if (user->registered != REG_ALL || !IS_LOCAL(user))
 623                 return;
 624
 625         parameterlist params;
 626         params.push_back(gecos);
 627         Utils->DoOneToMany(user->uuid,"FNAME",params);
 628 }
 629
 630 void ModuleSpanningTree::OnChangeIdent(User* user, const std::string &ident)
 631 {
 632         // only occurs for local clients
 633         if (user->registered != REG_ALL)
 634                 return;
 635
 636         parameterlist params;
 637         params.push_back(ident);
 638         Utils->DoOneToMany(user->uuid,"FIDENT",params);
 639 }
 640
 641 void ModuleSpanningTree::OnUserPart(Membership* memb, std::string &partmessage, CUList& excepts)
 642 {
 643         if (IS_LOCAL(memb->user))
 644         {
 645                 parameterlist params;
 646                 params.push_back(memb->chan->name);
 647                 if (!partmessage.empty())
 648                         params.push_back(":"+partmessage);
 649                 Utils->DoOneToMany(memb->user->uuid,"PART",params);
 650         }
 651 }
 652
 653 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 654 {
 655         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 656         {
 657                 parameterlist params;
 658
 659                 if (oper_message != reason)
 660                 {
 661                         params.push_back(":"+oper_message);
 662                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 663                 }
 664                 params.clear();
 665                 params.push_back(":"+reason);
 666                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 667         }
 668
 669         // Regardless, We need to modify the user Counts..
 670         TreeServer* SourceServer = Utils->FindServer(user->server);
 671         if (SourceServer)
 672         {
 673                 SourceServer->SetUserCount(-1); // decrement by 1
 674         }
 675 }
 676
 677 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 678 {
 679         if (IS_LOCAL(user))
 680         {
 681                 parameterlist params;
 682                 params.push_back(user->nick);
 683
 684                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 685                  */
 686                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 687                         user->age = ServerInstance->Time();
 688
 689                 params.push_back(ConvToStr(user->age));
 690                 Utils->DoOneToMany(user->uuid,"NICK",params);
 691         }
 692         else if (!loopCall && user->nick == user->uuid)
 693         {
 694                 parameterlist params;
 695                 params.push_back(user->uuid);
 696                 params.push_back(ConvToStr(user->age));
 697                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SAVE",params);
 698         }
 699 }
 700
 701 void ModuleSpanningTree::OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts)
 702 {
 703         parameterlist params;
 704         params.push_back(memb->chan->name);
 705         params.push_back(memb->user->uuid);
 706         params.push_back(":"+reason);
 707         if (IS_LOCAL(source))
 708         {
 709                 Utils->DoOneToMany(source->uuid,"KICK",params);
 710         }
 711         else if (source == ServerInstance->FakeClient)
 712         {
 713                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 714         }
 715 }
 716
 717 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 718 {
 719         if (!IS_LOCAL(source))
 720                 return; // Only start routing if we're origin.
 721
 722         ServerInstance->OperQuit.set(dest, operreason);
 723         parameterlist params;
 724         params.push_back(":"+operreason);
 725         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 726         params.clear();
 727         params.push_back(dest->uuid);
 728         params.push_back(":"+reason);
 729         Utils->DoOneToMany(source->uuid,"KILL",params);
 730 }
 731
 732 void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 733 {
 734         ServerInstance->Logs->Log("remoterehash", DEBUG, "called with param %s", parameter.c_str());
 735
 736         // Send out to other servers
 737         if (!parameter.empty() && parameter[0] != '-')
 738         {
 739                 parameterlist params;
 740                 params.push_back(parameter);
 741                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 742         }
 743 }
 744
 745 void ModuleSpanningTree::OnRehash(User* user)
 746 {
 747         // Re-read config stuff
 748         Utils->ReadConfiguration();
 749 }
 750
 751 void ModuleSpanningTree::OnLoadModule(Module* mod)
 752 {
 753         std::string data;
 754         data.push_back('+');
 755         data.append(mod->ModuleSourceFile);
 756         Version v = mod->GetVersion();
 757         if (!v.link_data.empty())
 758         {
 759                 data.push_back('=');
 760                 data.append(v.link_data);
 761         }
 762         ServerInstance->PI->SendMetaData(NULL, "modules", data);
 763 }
 764
 765 void ModuleSpanningTree::OnUnloadModule(Module* mod)
 766 {
 767         ServerInstance->PI->SendMetaData(NULL, "modules", "-" + mod->ModuleSourceFile);
 768
 769         unsigned int items = Utils->TreeRoot->ChildCount();
 770         for(unsigned int x = 0; x < items; x++)
 771         {
 772                 TreeServer* srv = Utils->TreeRoot->GetChild(x);
 773                 TreeSocket* sock = srv->GetSocket();
 774                 if (sock && sock->GetIOHook() == mod)
 775                 {
 776                         sock->SendError("SSL module unloaded");
 777                         sock->Squit(srv,"SSL module unloaded");
 778                         sock->Close();
 779                 }
 780         }
 781 }
 782
 783 void ModuleSpanningTree::RedoConfig(Module* mod)
 784 {
 785 }
 786
 787 // note: the protocol does not allow direct umode +o except
 788 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 789 // locally.
 790 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 791 {
 792         if (IS_LOCAL(user))
 793         {
 794                 parameterlist params;
 795                 params.push_back(opertype);
 796                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 797         }
 798 }
 799
 800 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 801 {
 802         if (!x->IsBurstable() || loopCall)
 803                 return;
 804
 805         char data[MAXBUF];
 806         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
 807         ServerInstance->Config->ServerName.c_str(), (unsigned long)x->set_time, (unsigned long)x->duration, x->reason.c_str());
 808         parameterlist params;
 809         params.push_back(data);
 810
 811         if (!user)
 812         {
 813                 /* Server-set lines */
 814                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 815         }
 816         else if (IS_LOCAL(user))
 817         {
 818                 /* User-set lines */
 819                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 820         }
 821 }
 822
 823 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 824 {
 825         if (x->type == "K")
 826                 return;
 827
 828         char data[MAXBUF];
 829         snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
 830         parameterlist params;
 831         params.push_back(data);
 832
 833         if (!user)
 834         {
 835                 /* Server-unset lines */
 836                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 837         }
 838         else if (IS_LOCAL(user))
 839         {
 840                 /* User-unset lines */
 841                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 842         }
 843 }
 844
 845 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const parameterlist &text, const std::vector<TranslateType> &translate)
 846 {
 847         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 848         {
 849                 parameterlist params;
 850                 std::string command;
 851                 std::string output_text;
 852
 853                 ServerInstance->Parser->TranslateUIDs(translate, text, output_text);
 854
 855                 if (target_type == TYPE_USER)
 856                 {
 857                         User* u = (User*)dest;
 858                         params.push_back(u->uuid);
 859                         params.push_back(output_text);
 860                         command = "MODE";
 861                 }
 862                 else
 863                 {
 864                         Channel* c = (Channel*)dest;
 865                         params.push_back(c->name);
 866                         params.push_back(ConvToStr(c->age));
 867                         params.push_back(output_text);
 868                         command = "FMODE";
 869                 }
 870
 871                 Utils->DoOneToMany(user->uuid, command, params);
 872         }
 873 }
 874
 875 ModResult ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 876 {
 877         if (IS_LOCAL(user))
 878         {
 879                 if (awaymsg.empty())
 880                 {
 881                         parameterlist params;
 882                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 883                 }
 884                 else
 885                 {
 886                         parameterlist params;
 887                         params.push_back(ConvToStr(user->awaytime));
 888                         params.push_back(":" + awaymsg);
 889                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 890                 }
 891         }
 892
 893         return MOD_RES_PASSTHRU;
 894 }
 895
 896 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const parameterlist &modeline, const std::vector<TranslateType> &translate)
 897 {
 898         TreeSocket* s = (TreeSocket*)opaque;
 899         std::string output_text;
 900
 901         ServerInstance->Parser->TranslateUIDs(translate, modeline, output_text);
 902
 903         if (target)
 904         {
 905                 if (target_type == TYPE_USER)
 906                 {
 907                         User* u = (User*)target;
 908                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 909                 }
 910                 else if (target_type == TYPE_CHANNEL)
 911                 {
 912                         Channel* c = (Channel*)target;
 913                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 914                 }
 915         }
 916 }
 917
 918 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, Extensible* target, const std::string &extname, const std::string &extdata)
 919 {
 920         TreeSocket* s = static_cast<TreeSocket*>(opaque);
 921         User* u = dynamic_cast<User*>(target);
 922         Channel* c = dynamic_cast<Channel*>(target);
 923         if (u)
 924                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 925         else if (c)
 926                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 927         else if (!target)
 928                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 929 }
 930
 931 CullResult ModuleSpanningTree::cull()
 932 {
 933         Utils->cull();
 934         ServerInstance->Timers->DelTimer(RefreshTimer);
 935         return this->Module::cull();
 936 }
 937
 938 ModuleSpanningTree::~ModuleSpanningTree()
 939 {
 940         delete ServerInstance->PI;
 941         ServerInstance->PI = new ProtocolInterface;
 942
 943         /* This will also free the listeners */
 944         delete Utils;
 945
 946         delete commands;
 947 }
 948
 949 Version ModuleSpanningTree::GetVersion()
 950 {
 951         return Version("Allows servers to be linked", VF_VENDOR);
 952 }
 953
 954 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 955  * so that any activity it sees is FINAL, e.g. we arent going to send out
 956  * a NICK message before m_cloaking has finished putting the +x on the user,
 957  * etc etc.
 958  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 959  * the module call queue.
 960  */
 961 void ModuleSpanningTree::Prioritize()
 962 {
 963         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 964 }
 965
 966 MODULE_INIT(ModuleSpanningTree)