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()->SendError("Ping timeout");
 158                         s->GetSocket()->Squit(s,"Ping timeout");
 159                         s->GetSocket()->Close();
 160                         goto restart;
 161                 }
 162
 163                 // Fix for bug #792, do not ping servers that are not connected yet!
 164                 // Remote servers have Socket == NULL and local connected servers have
 165                 // Socket->LinkState == CONNECTED
 166                 if (s->GetSocket() && s->GetSocket()->GetLinkState() != CONNECTED)
 167                         continue;
 168
 169                 // Now do PING checks on all servers
 170                 TreeServer *mts = Utils->BestRouteTo(s->GetID());
 171
 172                 if (mts)
 173                 {
 174                         // Only ping if this server needs one
 175                         if (curtime >= s->NextPingTime())
 176                         {
 177                                 // And if they answered the last
 178                                 if (s->AnsweredLastPing())
 179                                 {
 180                                         // They did, send a ping to them
 181                                         s->SetNextPingTime(curtime + Utils->PingFreq);
 182                                         TreeSocket *tsock = mts->GetSocket();
 183
 184                                         // ... if we can find a proper route to them
 185                                         if (tsock)
 186                                         {
 187                                                 tsock->WriteLine(std::string(":") + ServerInstance->Config->GetSID() + " PING " +
 188                                                                 ServerInstance->Config->GetSID() + " " + s->GetID());
 189                                                 s->LastPingMsec = ts;
 190                                         }
 191                                 }
 192                                 else
 193                                 {
 194                                         // They didn't answer the last ping, if they are locally connected, get rid of them.
 195                                         TreeSocket *sock = s->GetSocket();
 196                                         if (sock)
 197                                         {
 198                                                 sock->SendError("Ping timeout");
 199                                                 sock->Squit(s,"Ping timeout");
 200                                                 sock->Close();
 201                                                 goto restart;
 202                                         }
 203                                 }
 204                         }
 205
 206                         // If warn on ping enabled and not warned and the difference is sufficient and they didn't answer the last ping...
 207                         if ((Utils->PingWarnTime) && (!s->Warned) && (curtime >= s->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!s->AnsweredLastPing()))
 208                         {
 209                                 /* The server hasnt responded, send a warning to opers */
 210                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", s->GetName().c_str(), Utils->PingWarnTime);
 211                                 s->Warned = true;
 212                         }
 213                 }
 214         }
 215 }
 216
 217 void ModuleSpanningTree::ConnectServer(Autoconnect* a, bool on_timer)
 218 {
 219         if (!a)
 220                 return;
 221         for(unsigned int j=0; j < a->servers.size(); j++)
 222         {
 223                 if (Utils->FindServer(a->servers[j]))
 224                 {
 225                         // found something in this block. Should the server fail,
 226                         // we want to start at the start of the list, not in the
 227                         // middle where we left off
 228                         a->position = -1;
 229                         return;
 230                 }
 231         }
 232         if (on_timer && a->position >= 0)
 233                 return;
 234         if (!on_timer && a->position < 0)
 235                 return;
 236
 237         a->position++;
 238         while (a->position < (int)a->servers.size())
 239         {
 240                 Link* x = Utils->FindLink(a->servers[a->position]);
 241                 if (x)
 242                 {
 243                         ServerInstance->SNO->WriteToSnoMask('l', "AUTOCONNECT: Auto-connecting server \002%s\002", x->Name.c_str());
 244                         ConnectServer(x, a);
 245                         return;
 246                 }
 247                 a->position++;
 248         }
 249         // Autoconnect chain has been fully iterated; start at the beginning on the
 250         // next AutoConnectServers run
 251         a->position = -1;
 252 }
 253
 254 void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
 255 {
 256         bool ipvalid = true;
 257
 258         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 259         {
 260                 ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
 261                 return;
 262         }
 263
 264         QueryType start_type = DNS_QUERY_A;
 265         start_type = DNS_QUERY_AAAA;
 266         if (strchr(x->IPAddr.c_str(),':'))
 267         {
 268                 in6_addr n;
 269                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 270                         ipvalid = false;
 271         }
 272         else
 273         {
 274                 in_addr n;
 275                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 276                         ipvalid = false;
 277         }
 278
 279         /* Do we already have an IP? If so, no need to resolve it. */
 280         if (ipvalid)
 281         {
 282                 /* Gave a hook, but it wasnt one we know */
 283                 TreeSocket* newsocket = new TreeSocket(Utils, x->IPAddr, x->Port, x->Timeout ? x->Timeout : 10,
 284                         x->Name.c_str(), x->Bind, y, x->Hook);
 285                 if (newsocket->GetFd() > -1)
 286                 {
 287                         /* Handled automatically on success */
 288                 }
 289                 else
 290                 {
 291                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",
 292                                 x->Name.c_str(), newsocket->getError().c_str());
 293                         ServerInstance->GlobalCulls.AddItem(newsocket);
 294                 }
 295         }
 296         else
 297         {
 298                 try
 299                 {
 300                         bool cached;
 301                         ServernameResolver* snr = new ServernameResolver(Utils, x->IPAddr, x, cached, start_type, y);
 302                         ServerInstance->AddResolver(snr, cached);
 303                 }
 304                 catch (ModuleException& e)
 305                 {
 306                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 307                         ConnectServer(y, false);
 308                 }
 309         }
 310 }
 311
 312 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 313 {
 314         for (std::vector<reference<Autoconnect> >::iterator i = Utils->AutoconnectBlocks.begin(); i < Utils->AutoconnectBlocks.end(); ++i)
 315         {
 316                 Autoconnect* x = *i;
 317                 if (curtime >= x->NextConnectTime)
 318                 {
 319                         x->NextConnectTime = curtime + x->Period;
 320                         ConnectServer(x, true);
 321                 }
 322         }
 323 }
 324
 325 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 326 {
 327         std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin();
 328         while (i != Utils->timeoutlist.end())
 329         {
 330                 TreeSocket* s = i->first;
 331                 std::pair<std::string, int> p = i->second;
 332                 std::map<TreeSocket*, std::pair<std::string, int> >::iterator me = i;
 333                 i++;
 334                 if (curtime > s->age + p.second)
 335                 {
 336                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 337                         Utils->timeoutlist.erase(me);
 338                         s->Close();
 339                         ServerInstance->GlobalCulls.AddItem(s);
 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         for(Extensible::ExtensibleStore::const_iterator i = user->GetExtList().begin(); i != user->GetExtList().end(); i++)
 585         {
 586                 ExtensionItem* item = i->first;
 587                 std::string value = item->serialize(FORMAT_NETWORK, user, i->second);
 588                 if (!value.empty())
 589                         ServerInstance->PI->SendMetaData(user, item->name, value);
 590         }
 591
 592         Utils->TreeRoot->SetUserCount(1); // increment by 1
 593 }
 594
 595 void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created, CUList& excepts)
 596 {
 597         // Only do this for local users
 598         if (IS_LOCAL(memb->user))
 599         {
 600                 parameterlist params;
 601                 // set up their permissions and the channel TS with FJOIN.
 602                 // All users are FJOINed now, because a module may specify
 603                 // new joining permissions for the user.
 604                 params.push_back(memb->chan->name);
 605                 params.push_back(ConvToStr(memb->chan->age));
 606                 params.push_back(std::string("+") + memb->chan->ChanModes(true));
 607                 params.push_back(memb->modes+","+std::string(memb->user->uuid));
 608                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 609         }
 610 }
 611
 612 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 613 {
 614         if (user->registered != REG_ALL || !IS_LOCAL(user))
 615                 return;
 616
 617         parameterlist params;
 618         params.push_back(newhost);
 619         Utils->DoOneToMany(user->uuid,"FHOST",params);
 620 }
 621
 622 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 623 {
 624         if (user->registered != REG_ALL || !IS_LOCAL(user))
 625                 return;
 626
 627         parameterlist params;
 628         params.push_back(gecos);
 629         Utils->DoOneToMany(user->uuid,"FNAME",params);
 630 }
 631
 632 void ModuleSpanningTree::OnChangeIdent(User* user, const std::string &ident)
 633 {
 634         // only occurs for local clients
 635         if (user->registered != REG_ALL)
 636                 return;
 637
 638         parameterlist params;
 639         params.push_back(ident);
 640         Utils->DoOneToMany(user->uuid,"FIDENT",params);
 641 }
 642
 643 void ModuleSpanningTree::OnUserPart(Membership* memb, std::string &partmessage, CUList& excepts)
 644 {
 645         if (IS_LOCAL(memb->user))
 646         {
 647                 parameterlist params;
 648                 params.push_back(memb->chan->name);
 649                 if (!partmessage.empty())
 650                         params.push_back(":"+partmessage);
 651                 Utils->DoOneToMany(memb->user->uuid,"PART",params);
 652         }
 653 }
 654
 655 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 656 {
 657         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 658         {
 659                 parameterlist params;
 660
 661                 if (oper_message != reason)
 662                 {
 663                         params.push_back(":"+oper_message);
 664                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 665                 }
 666                 params.clear();
 667                 params.push_back(":"+reason);
 668                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 669         }
 670
 671         // Regardless, We need to modify the user Counts..
 672         TreeServer* SourceServer = Utils->FindServer(user->server);
 673         if (SourceServer)
 674         {
 675                 SourceServer->SetUserCount(-1); // decrement by 1
 676         }
 677 }
 678
 679 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 680 {
 681         if (IS_LOCAL(user))
 682         {
 683                 parameterlist params;
 684                 params.push_back(user->nick);
 685
 686                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 687                  */
 688                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 689                         user->age = ServerInstance->Time();
 690
 691                 params.push_back(ConvToStr(user->age));
 692                 Utils->DoOneToMany(user->uuid,"NICK",params);
 693         }
 694         else if (!loopCall && user->nick == user->uuid)
 695         {
 696                 parameterlist params;
 697                 params.push_back(user->uuid);
 698                 params.push_back(ConvToStr(user->age));
 699                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SAVE",params);
 700         }
 701 }
 702
 703 void ModuleSpanningTree::OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts)
 704 {
 705         parameterlist params;
 706         params.push_back(memb->chan->name);
 707         params.push_back(memb->user->uuid);
 708         params.push_back(":"+reason);
 709         if (IS_LOCAL(source))
 710         {
 711                 Utils->DoOneToMany(source->uuid,"KICK",params);
 712         }
 713         else if (source == ServerInstance->FakeClient)
 714         {
 715                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 716         }
 717 }
 718
 719 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 720 {
 721         if (!IS_LOCAL(source))
 722                 return; // Only start routing if we're origin.
 723
 724         ServerInstance->OperQuit.set(dest, operreason);
 725         parameterlist params;
 726         params.push_back(":"+operreason);
 727         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 728         params.clear();
 729         params.push_back(dest->uuid);
 730         params.push_back(":"+reason);
 731         Utils->DoOneToMany(source->uuid,"KILL",params);
 732 }
 733
 734 void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 735 {
 736         ServerInstance->Logs->Log("remoterehash", DEBUG, "called with param %s", parameter.c_str());
 737
 738         // Send out to other servers
 739         if (!parameter.empty() && parameter[0] != '-')
 740         {
 741                 parameterlist params;
 742                 params.push_back(parameter);
 743                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 744         }
 745 }
 746
 747 void ModuleSpanningTree::OnRehash(User* user)
 748 {
 749         // Re-read config stuff
 750         Utils->ReadConfiguration();
 751 }
 752
 753 void ModuleSpanningTree::OnLoadModule(Module* mod)
 754 {
 755         std::string data;
 756         data.push_back('+');
 757         data.append(mod->ModuleSourceFile);
 758         Version v = mod->GetVersion();
 759         if (!v.link_data.empty())
 760         {
 761                 data.push_back('=');
 762                 data.append(v.link_data);
 763         }
 764         ServerInstance->PI->SendMetaData(NULL, "modules", data);
 765 }
 766
 767 void ModuleSpanningTree::OnUnloadModule(Module* mod)
 768 {
 769         ServerInstance->PI->SendMetaData(NULL, "modules", "-" + mod->ModuleSourceFile);
 770
 771         unsigned int items = Utils->TreeRoot->ChildCount();
 772         for(unsigned int x = 0; x < items; x++)
 773         {
 774                 TreeServer* srv = Utils->TreeRoot->GetChild(x);
 775                 TreeSocket* sock = srv->GetSocket();
 776                 if (sock && sock->GetIOHook() == mod)
 777                 {
 778                         sock->SendError("SSL module unloaded");
 779                         sock->Squit(srv,"SSL module unloaded");
 780                         sock->Close();
 781                 }
 782         }
 783 }
 784
 785 void ModuleSpanningTree::RedoConfig(Module* mod)
 786 {
 787 }
 788
 789 // note: the protocol does not allow direct umode +o except
 790 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 791 // locally.
 792 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 793 {
 794         if (IS_LOCAL(user))
 795         {
 796                 parameterlist params;
 797                 params.push_back(opertype);
 798                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 799         }
 800 }
 801
 802 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 803 {
 804         if (!x->IsBurstable() || loopCall)
 805                 return;
 806
 807         char data[MAXBUF];
 808         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
 809         ServerInstance->Config->ServerName.c_str(), (unsigned long)x->set_time, (unsigned long)x->duration, x->reason.c_str());
 810         parameterlist params;
 811         params.push_back(data);
 812
 813         if (!user)
 814         {
 815                 /* Server-set lines */
 816                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 817         }
 818         else if (IS_LOCAL(user))
 819         {
 820                 /* User-set lines */
 821                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 822         }
 823 }
 824
 825 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 826 {
 827         if (x->type == "K")
 828                 return;
 829
 830         char data[MAXBUF];
 831         snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
 832         parameterlist params;
 833         params.push_back(data);
 834
 835         if (!user)
 836         {
 837                 /* Server-unset lines */
 838                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 839         }
 840         else if (IS_LOCAL(user))
 841         {
 842                 /* User-unset lines */
 843                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 844         }
 845 }
 846
 847 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const parameterlist &text, const std::vector<TranslateType> &translate)
 848 {
 849         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 850         {
 851                 parameterlist params;
 852                 std::string command;
 853                 std::string output_text;
 854
 855                 ServerInstance->Parser->TranslateUIDs(translate, text, output_text);
 856
 857                 if (target_type == TYPE_USER)
 858                 {
 859                         User* u = (User*)dest;
 860                         params.push_back(u->uuid);
 861                         params.push_back(output_text);
 862                         command = "MODE";
 863                 }
 864                 else
 865                 {
 866                         Channel* c = (Channel*)dest;
 867                         params.push_back(c->name);
 868                         params.push_back(ConvToStr(c->age));
 869                         params.push_back(output_text);
 870                         command = "FMODE";
 871                 }
 872
 873                 Utils->DoOneToMany(user->uuid, command, params);
 874         }
 875 }
 876
 877 ModResult ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 878 {
 879         if (IS_LOCAL(user))
 880         {
 881                 if (awaymsg.empty())
 882                 {
 883                         parameterlist params;
 884                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 885                 }
 886                 else
 887                 {
 888                         parameterlist params;
 889                         params.push_back(ConvToStr(user->awaytime));
 890                         params.push_back(":" + awaymsg);
 891                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 892                 }
 893         }
 894
 895         return MOD_RES_PASSTHRU;
 896 }
 897
 898 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const parameterlist &modeline, const std::vector<TranslateType> &translate)
 899 {
 900         TreeSocket* s = (TreeSocket*)opaque;
 901         std::string output_text;
 902
 903         ServerInstance->Parser->TranslateUIDs(translate, modeline, output_text);
 904
 905         if (target)
 906         {
 907                 if (target_type == TYPE_USER)
 908                 {
 909                         User* u = (User*)target;
 910                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 911                 }
 912                 else if (target_type == TYPE_CHANNEL)
 913                 {
 914                         Channel* c = (Channel*)target;
 915                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 916                 }
 917         }
 918 }
 919
 920 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, Extensible* target, const std::string &extname, const std::string &extdata)
 921 {
 922         TreeSocket* s = static_cast<TreeSocket*>(opaque);
 923         User* u = dynamic_cast<User*>(target);
 924         Channel* c = dynamic_cast<Channel*>(target);
 925         if (u)
 926                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 927         else if (c)
 928                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 929         else if (!target)
 930                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 931 }
 932
 933 CullResult ModuleSpanningTree::cull()
 934 {
 935         Utils->cull();
 936         ServerInstance->Timers->DelTimer(RefreshTimer);
 937         return this->Module::cull();
 938 }
 939
 940 ModuleSpanningTree::~ModuleSpanningTree()
 941 {
 942         delete ServerInstance->PI;
 943         ServerInstance->PI = new ProtocolInterface;
 944
 945         /* This will also free the listeners */
 946         delete Utils;
 947
 948         delete commands;
 949 }
 950
 951 Version ModuleSpanningTree::GetVersion()
 952 {
 953         return Version("Allows servers to be linked", VF_VENDOR);
 954 }
 955
 956 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 957  * so that any activity it sees is FINAL, e.g. we arent going to send out
 958  * a NICK message before m_cloaking has finished putting the +x on the user,
 959  * etc etc.
 960  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 961  * the module call queue.
 962  */
 963 void ModuleSpanningTree::Prioritize()
 964 {
 965         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 966 }
 967
 968 MODULE_INIT(ModuleSpanningTree)