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, y, x->IPAddr);
 281                 if (newsocket->GetFd() > -1)
 282                 {
 283                         /* Handled automatically on success */
 284                 }
 285                 else
 286                 {
 287                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",
 288                                 x->Name.c_str(), newsocket->getError().c_str());
 289                         ServerInstance->GlobalCulls.AddItem(newsocket);
 290                 }
 291         }
 292         else
 293         {
 294                 try
 295                 {
 296                         bool cached;
 297                         ServernameResolver* snr = new ServernameResolver(Utils, x->IPAddr, x, cached, start_type, y);
 298                         ServerInstance->AddResolver(snr, cached);
 299                 }
 300                 catch (ModuleException& e)
 301                 {
 302                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 303                         ConnectServer(y, false);
 304                 }
 305         }
 306 }
 307
 308 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 309 {
 310         for (std::vector<reference<Autoconnect> >::iterator i = Utils->AutoconnectBlocks.begin(); i < Utils->AutoconnectBlocks.end(); ++i)
 311         {
 312                 Autoconnect* x = *i;
 313                 if (curtime >= x->NextConnectTime)
 314                 {
 315                         x->NextConnectTime = curtime + x->Period;
 316                         ConnectServer(x, true);
 317                 }
 318         }
 319 }
 320
 321 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 322 {
 323         std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin();
 324         while (i != Utils->timeoutlist.end())
 325         {
 326                 TreeSocket* s = i->first;
 327                 std::pair<std::string, int> p = i->second;
 328                 std::map<TreeSocket*, std::pair<std::string, int> >::iterator me = i;
 329                 i++;
 330                 if (s->GetLinkState() == DYING)
 331                 {
 332                         Utils->timeoutlist.erase(me);
 333                         s->Close();
 334                 }
 335                 if (curtime > s->age + p.second)
 336                 {
 337                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 338                         Utils->timeoutlist.erase(me);
 339                         s->Close();
 340                 }
 341         }
 342 }
 343
 344 ModResult ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 345 {
 346         // we've already checked if pcnt > 0, so this is safe
 347         TreeServer* found = Utils->FindServerMask(parameters[0]);
 348         if (found)
 349         {
 350                 std::string Version = found->GetVersion();
 351                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 352                 if (found == Utils->TreeRoot)
 353                 {
 354                         ServerInstance->Config->Send005(user);
 355                 }
 356         }
 357         else
 358         {
 359                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 360         }
 361         return MOD_RES_DENY;
 362 }
 363
 364 /* This method will attempt to get a message to a remote user.
 365  */
 366 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 367 {
 368         char text[MAXBUF];
 369         va_list argsPtr;
 370
 371         va_start(argsPtr, format);
 372         vsnprintf(text, MAXBUF, format, argsPtr);
 373         va_end(argsPtr);
 374
 375         if (IS_LOCAL(user))
 376                 user->WriteServ("NOTICE %s :%s", user->nick.c_str(), text);
 377         else
 378                 ServerInstance->PI->SendUserNotice(user, text);
 379 }
 380
 381 ModResult ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 382 {
 383         for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i < Utils->LinkBlocks.end(); i++)
 384         {
 385                 Link* x = *i;
 386                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 387                 {
 388                         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 389                         {
 390                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
 391                                 return MOD_RES_DENY;
 392                         }
 393
 394                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 395                         if (!CheckDupe)
 396                         {
 397                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 398                                 ConnectServer(x);
 399                                 return MOD_RES_DENY;
 400                         }
 401                         else
 402                         {
 403                                 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());
 404                                 return MOD_RES_DENY;
 405                         }
 406                 }
 407         }
 408         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 409         return MOD_RES_DENY;
 410 }
 411
 412 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 413 {
 414         TreeServer* s = Utils->FindServer(servername);
 415         if (s)
 416         {
 417                 description = s->GetDesc();
 418         }
 419 }
 420
 421 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 422 {
 423         if (IS_LOCAL(source))
 424         {
 425                 parameterlist params;
 426                 params.push_back(dest->uuid);
 427                 params.push_back(channel->name);
 428                 params.push_back(ConvToStr(expiry));
 429                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 430         }
 431 }
 432
 433 void ModuleSpanningTree::OnPostTopicChange(User* user, Channel* chan, const std::string &topic)
 434 {
 435         // Drop remote events on the floor.
 436         if (!IS_LOCAL(user))
 437                 return;
 438
 439         parameterlist params;
 440         params.push_back(chan->name);
 441         params.push_back(":"+topic);
 442         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 443 }
 444
 445 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 446 {
 447         if (IS_LOCAL(user))
 448         {
 449                 parameterlist params;
 450                 params.push_back(":"+text);
 451                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 452         }
 453 }
 454
 455 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 456 {
 457         /* Server origin */
 458         if (user == NULL)
 459                 return;
 460
 461         if (target_type == TYPE_USER)
 462         {
 463                 User* d = (User*)dest;
 464                 if (!IS_LOCAL(d) && IS_LOCAL(user))
 465                 {
 466                         parameterlist params;
 467                         params.push_back(d->uuid);
 468                         params.push_back(":"+text);
 469                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 470                 }
 471         }
 472         else if (target_type == TYPE_CHANNEL)
 473         {
 474                 if (IS_LOCAL(user))
 475                 {
 476                         Channel *c = (Channel*)dest;
 477                         if (c)
 478                         {
 479                                 std::string cname = c->name;
 480                                 if (status)
 481                                         cname = status + cname;
 482                                 TreeServerList list;
 483                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 484                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 485                                 {
 486                                         TreeSocket* Sock = i->second->GetSocket();
 487                                         if (Sock)
 488                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 489                                 }
 490                         }
 491                 }
 492         }
 493         else if (target_type == TYPE_SERVER)
 494         {
 495                 if (IS_LOCAL(user))
 496                 {
 497                         char* target = (char*)dest;
 498                         parameterlist par;
 499                         par.push_back(target);
 500                         par.push_back(":"+text);
 501                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 502                 }
 503         }
 504 }
 505
 506 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 507 {
 508         /* Server origin */
 509         if (user == NULL)
 510                 return;
 511
 512         if (target_type == TYPE_USER)
 513         {
 514                 // route private messages which are targetted at clients only to the server
 515                 // which needs to receive them
 516                 User* d = (User*)dest;
 517                 if (!IS_LOCAL(d) && (IS_LOCAL(user)))
 518                 {
 519                         parameterlist params;
 520                         params.push_back(d->uuid);
 521                         params.push_back(":"+text);
 522                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 523                 }
 524         }
 525         else if (target_type == TYPE_CHANNEL)
 526         {
 527                 if (IS_LOCAL(user))
 528                 {
 529                         Channel *c = (Channel*)dest;
 530                         if (c)
 531                         {
 532                                 std::string cname = c->name;
 533                                 if (status)
 534                                         cname = status + cname;
 535                                 TreeServerList list;
 536                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 537                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 538                                 {
 539                                         TreeSocket* Sock = i->second->GetSocket();
 540                                         if (Sock)
 541                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 542                                 }
 543                         }
 544                 }
 545         }
 546         else if (target_type == TYPE_SERVER)
 547         {
 548                 if (IS_LOCAL(user))
 549                 {
 550                         char* target = (char*)dest;
 551                         parameterlist par;
 552                         par.push_back(target);
 553                         par.push_back(":"+text);
 554                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 555                 }
 556         }
 557 }
 558
 559 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 560 {
 561         AutoConnectServers(curtime);
 562         DoPingChecks(curtime);
 563         DoConnectTimeout(curtime);
 564 }
 565
 566 void ModuleSpanningTree::OnUserConnect(LocalUser* user)
 567 {
 568         if (user->quitting)
 569                 return;
 570
 571         parameterlist params;
 572         params.push_back(user->uuid);
 573         params.push_back(ConvToStr(user->age));
 574         params.push_back(user->nick);
 575         params.push_back(user->host);
 576         params.push_back(user->dhost);
 577         params.push_back(user->ident);
 578         params.push_back(user->GetIPString());
 579         params.push_back(ConvToStr(user->signon));
 580         params.push_back("+"+std::string(user->FormatModes(true)));
 581         params.push_back(":"+std::string(user->fullname));
 582         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 583
 584         if (IS_OPER(user))
 585         {
 586                 params.clear();
 587                 params.push_back(user->oper->name);
 588                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 589         }
 590
 591         for(Extensible::ExtensibleStore::const_iterator i = user->GetExtList().begin(); i != user->GetExtList().end(); i++)
 592         {
 593                 ExtensionItem* item = i->first;
 594                 std::string value = item->serialize(FORMAT_NETWORK, user, i->second);
 595                 if (!value.empty())
 596                         ServerInstance->PI->SendMetaData(user, item->name, value);
 597         }
 598
 599         Utils->TreeRoot->SetUserCount(1); // increment by 1
 600 }
 601
 602 void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created, CUList& excepts)
 603 {
 604         // Only do this for local users
 605         if (IS_LOCAL(memb->user))
 606         {
 607                 parameterlist params;
 608                 // set up their permissions and the channel TS with FJOIN.
 609                 // All users are FJOINed now, because a module may specify
 610                 // new joining permissions for the user.
 611                 params.push_back(memb->chan->name);
 612                 params.push_back(ConvToStr(memb->chan->age));
 613                 params.push_back(std::string("+") + memb->chan->ChanModes(true));
 614                 params.push_back(memb->modes+","+std::string(memb->user->uuid));
 615                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 616         }
 617 }
 618
 619 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 620 {
 621         if (user->registered != REG_ALL || !IS_LOCAL(user))
 622                 return;
 623
 624         parameterlist params;
 625         params.push_back(newhost);
 626         Utils->DoOneToMany(user->uuid,"FHOST",params);
 627 }
 628
 629 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 630 {
 631         if (user->registered != REG_ALL || !IS_LOCAL(user))
 632                 return;
 633
 634         parameterlist params;
 635         params.push_back(gecos);
 636         Utils->DoOneToMany(user->uuid,"FNAME",params);
 637 }
 638
 639 void ModuleSpanningTree::OnChangeIdent(User* user, const std::string &ident)
 640 {
 641         // only occurs for local clients
 642         if (user->registered != REG_ALL)
 643                 return;
 644
 645         parameterlist params;
 646         params.push_back(ident);
 647         Utils->DoOneToMany(user->uuid,"FIDENT",params);
 648 }
 649
 650 void ModuleSpanningTree::OnUserPart(Membership* memb, std::string &partmessage, CUList& excepts)
 651 {
 652         if (IS_LOCAL(memb->user))
 653         {
 654                 parameterlist params;
 655                 params.push_back(memb->chan->name);
 656                 if (!partmessage.empty())
 657                         params.push_back(":"+partmessage);
 658                 Utils->DoOneToMany(memb->user->uuid,"PART",params);
 659         }
 660 }
 661
 662 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 663 {
 664         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 665         {
 666                 parameterlist params;
 667
 668                 if (oper_message != reason)
 669                 {
 670                         params.push_back(":"+oper_message);
 671                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 672                 }
 673                 params.clear();
 674                 params.push_back(":"+reason);
 675                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 676         }
 677
 678         // Regardless, We need to modify the user Counts..
 679         TreeServer* SourceServer = Utils->FindServer(user->server);
 680         if (SourceServer)
 681         {
 682                 SourceServer->SetUserCount(-1); // decrement by 1
 683         }
 684 }
 685
 686 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 687 {
 688         if (IS_LOCAL(user))
 689         {
 690                 parameterlist params;
 691                 params.push_back(user->nick);
 692
 693                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 694                  */
 695                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 696                         user->age = ServerInstance->Time();
 697
 698                 params.push_back(ConvToStr(user->age));
 699                 Utils->DoOneToMany(user->uuid,"NICK",params);
 700         }
 701         else if (!loopCall && user->nick == user->uuid)
 702         {
 703                 parameterlist params;
 704                 params.push_back(user->uuid);
 705                 params.push_back(ConvToStr(user->age));
 706                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SAVE",params);
 707         }
 708 }
 709
 710 void ModuleSpanningTree::OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts)
 711 {
 712         parameterlist params;
 713         params.push_back(memb->chan->name);
 714         params.push_back(memb->user->uuid);
 715         params.push_back(":"+reason);
 716         if (IS_LOCAL(source))
 717         {
 718                 Utils->DoOneToMany(source->uuid,"KICK",params);
 719         }
 720         else if (source == ServerInstance->FakeClient)
 721         {
 722                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 723         }
 724 }
 725
 726 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 727 {
 728         if (!IS_LOCAL(source))
 729                 return; // Only start routing if we're origin.
 730
 731         ServerInstance->OperQuit.set(dest, operreason);
 732         parameterlist params;
 733         params.push_back(":"+operreason);
 734         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 735         params.clear();
 736         params.push_back(dest->uuid);
 737         params.push_back(":"+reason);
 738         Utils->DoOneToMany(source->uuid,"KILL",params);
 739 }
 740
 741 void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 742 {
 743         ServerInstance->Logs->Log("remoterehash", DEBUG, "called with param %s", parameter.c_str());
 744
 745         // Send out to other servers
 746         if (!parameter.empty() && parameter[0] != '-')
 747         {
 748                 parameterlist params;
 749                 params.push_back(parameter);
 750                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 751         }
 752 }
 753
 754 void ModuleSpanningTree::OnRehash(User* user)
 755 {
 756         // Re-read config stuff
 757         Utils->ReadConfiguration();
 758 }
 759
 760 void ModuleSpanningTree::OnLoadModule(Module* mod)
 761 {
 762         std::string data;
 763         data.push_back('+');
 764         data.append(mod->ModuleSourceFile);
 765         Version v = mod->GetVersion();
 766         if (!v.link_data.empty())
 767         {
 768                 data.push_back('=');
 769                 data.append(v.link_data);
 770         }
 771         ServerInstance->PI->SendMetaData(NULL, "modules", data);
 772 }
 773
 774 void ModuleSpanningTree::OnUnloadModule(Module* mod)
 775 {
 776         ServerInstance->PI->SendMetaData(NULL, "modules", "-" + mod->ModuleSourceFile);
 777
 778         unsigned int items = Utils->TreeRoot->ChildCount();
 779         for(unsigned int x = 0; x < items; x++)
 780         {
 781                 TreeServer* srv = Utils->TreeRoot->GetChild(x);
 782                 TreeSocket* sock = srv->GetSocket();
 783                 if (sock && sock->GetIOHook() == mod)
 784                 {
 785                         sock->SendError("SSL module unloaded");
 786                         sock->Close();
 787                 }
 788         }
 789 }
 790
 791 void ModuleSpanningTree::RedoConfig(Module* mod)
 792 {
 793 }
 794
 795 // note: the protocol does not allow direct umode +o except
 796 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 797 // locally.
 798 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 799 {
 800         if (user->registered != REG_ALL || !IS_LOCAL(user))
 801                 return;
 802         parameterlist params;
 803         params.push_back(opertype);
 804         Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 805 }
 806
 807 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 808 {
 809         if (!x->IsBurstable() || loopCall)
 810                 return;
 811
 812         char data[MAXBUF];
 813         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
 814         ServerInstance->Config->ServerName.c_str(), (unsigned long)x->set_time, (unsigned long)x->duration, x->reason.c_str());
 815         parameterlist params;
 816         params.push_back(data);
 817
 818         if (!user)
 819         {
 820                 /* Server-set lines */
 821                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 822         }
 823         else if (IS_LOCAL(user))
 824         {
 825                 /* User-set lines */
 826                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 827         }
 828 }
 829
 830 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 831 {
 832         if (x->type == "K")
 833                 return;
 834
 835         char data[MAXBUF];
 836         snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
 837         parameterlist params;
 838         params.push_back(data);
 839
 840         if (!user)
 841         {
 842                 /* Server-unset lines */
 843                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 844         }
 845         else if (IS_LOCAL(user))
 846         {
 847                 /* User-unset lines */
 848                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 849         }
 850 }
 851
 852 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const parameterlist &text, const std::vector<TranslateType> &translate)
 853 {
 854         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 855         {
 856                 parameterlist params;
 857                 std::string command;
 858                 std::string output_text;
 859
 860                 ServerInstance->Parser->TranslateUIDs(translate, text, output_text);
 861
 862                 if (target_type == TYPE_USER)
 863                 {
 864                         User* u = (User*)dest;
 865                         params.push_back(u->uuid);
 866                         params.push_back(output_text);
 867                         command = "MODE";
 868                 }
 869                 else
 870                 {
 871                         Channel* c = (Channel*)dest;
 872                         params.push_back(c->name);
 873                         params.push_back(ConvToStr(c->age));
 874                         params.push_back(output_text);
 875                         command = "FMODE";
 876                 }
 877
 878                 Utils->DoOneToMany(user->uuid, command, params);
 879         }
 880 }
 881
 882 ModResult ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 883 {
 884         if (IS_LOCAL(user))
 885         {
 886                 if (awaymsg.empty())
 887                 {
 888                         parameterlist params;
 889                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 890                 }
 891                 else
 892                 {
 893                         parameterlist params;
 894                         params.push_back(ConvToStr(user->awaytime));
 895                         params.push_back(":" + awaymsg);
 896                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 897                 }
 898         }
 899
 900         return MOD_RES_PASSTHRU;
 901 }
 902
 903 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const parameterlist &modeline, const std::vector<TranslateType> &translate)
 904 {
 905         TreeSocket* s = (TreeSocket*)opaque;
 906         std::string output_text;
 907
 908         ServerInstance->Parser->TranslateUIDs(translate, modeline, output_text);
 909
 910         if (target)
 911         {
 912                 if (target_type == TYPE_USER)
 913                 {
 914                         User* u = (User*)target;
 915                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 916                 }
 917                 else if (target_type == TYPE_CHANNEL)
 918                 {
 919                         Channel* c = (Channel*)target;
 920                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 921                 }
 922         }
 923 }
 924
 925 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, Extensible* target, const std::string &extname, const std::string &extdata)
 926 {
 927         TreeSocket* s = static_cast<TreeSocket*>(opaque);
 928         User* u = dynamic_cast<User*>(target);
 929         Channel* c = dynamic_cast<Channel*>(target);
 930         if (u)
 931                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 932         else if (c)
 933                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 934         else if (!target)
 935                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 936 }
 937
 938 CullResult ModuleSpanningTree::cull()
 939 {
 940         Utils->cull();
 941         ServerInstance->Timers->DelTimer(RefreshTimer);
 942         return this->Module::cull();
 943 }
 944
 945 ModuleSpanningTree::~ModuleSpanningTree()
 946 {
 947         delete ServerInstance->PI;
 948         ServerInstance->PI = new ProtocolInterface;
 949
 950         /* This will also free the listeners */
 951         delete Utils;
 952
 953         delete commands;
 954 }
 955
 956 Version ModuleSpanningTree::GetVersion()
 957 {
 958         return Version("Allows servers to be linked", VF_VENDOR);
 959 }
 960
 961 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 962  * so that any activity it sees is FINAL, e.g. we arent going to send out
 963  * a NICK message before m_cloaking has finished putting the +x on the user,
 964  * etc etc.
 965  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 966  * the module call queue.
 967  */
 968 void ModuleSpanningTree::Prioritize()
 969 {
 970         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 971 }
 972
 973 MODULE_INIT(ModuleSpanningTree)