src/modules/m_spanningtree/main.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
   5  *   Copyright (C) 2007-2009 Craig Edwards <craigedwards@brainbox.cc>
   6  *   Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
   7  *   Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
   8  *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
   9  *
  10  * This file is part of InspIRCd.  InspIRCd is free software: you can
  11  * redistribute it and/or modify it under the terms of the GNU General Public
  12  * License as published by the Free Software Foundation, version 2.
  13  *
  14  * This program is distributed in the hope that it will be useful, but WITHOUT
  15  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  16  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  17  * details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23
  24 /* $ModDesc: Provides a spanning tree server link protocol */
  25
  26 #include "inspircd.h"
  27 #include "socket.h"
  28 #include "xline.h"
  29
  30 #include "resolvers.h"
  31 #include "main.h"
  32 #include "utils.h"
  33 #include "treeserver.h"
  34 #include "link.h"
  35 #include "treesocket.h"
  36 #include "commands.h"
  37 #include "protocolinterface.h"
  38
  39 ModuleSpanningTree::ModuleSpanningTree()
  40         : commands(NULL), Utils(NULL)
  41 {
  42 }
  43
  44 SpanningTreeCommands::SpanningTreeCommands(ModuleSpanningTree* module)
  45         : rconnect(module, module->Utils), rsquit(module, module->Utils),
  46         svsjoin(module), svspart(module), svsnick(module), metadata(module),
  47         uid(module), opertype(module), fjoin(module), ijoin(module), resync(module),
  48         fmode(module), ftopic(module), fhost(module), fident(module), fname(module)
  49 {
  50 }
  51
  52 void ModuleSpanningTree::init()
  53 {
  54         Utils = new SpanningTreeUtilities(this);
  55         commands = new SpanningTreeCommands(this);
  56         ServerInstance->Modules->AddService(commands->rconnect);
  57         ServerInstance->Modules->AddService(commands->rsquit);
  58         ServerInstance->Modules->AddService(commands->svsjoin);
  59         ServerInstance->Modules->AddService(commands->svspart);
  60         ServerInstance->Modules->AddService(commands->svsnick);
  61         ServerInstance->Modules->AddService(commands->metadata);
  62         ServerInstance->Modules->AddService(commands->uid);
  63         ServerInstance->Modules->AddService(commands->opertype);
  64         ServerInstance->Modules->AddService(commands->fjoin);
  65         ServerInstance->Modules->AddService(commands->ijoin);
  66         ServerInstance->Modules->AddService(commands->resync);
  67         ServerInstance->Modules->AddService(commands->fmode);
  68         ServerInstance->Modules->AddService(commands->ftopic);
  69         ServerInstance->Modules->AddService(commands->fhost);
  70         ServerInstance->Modules->AddService(commands->fident);
  71         ServerInstance->Modules->AddService(commands->fname);
  72
  73         Implementation eventlist[] =
  74         {
  75                 I_OnPreCommand, I_OnGetServerDescription, I_OnUserInvite, I_OnPostTopicChange,
  76                 I_OnWallops, I_OnUserNotice, I_OnUserMessage, I_OnBackgroundTimer, I_OnUserJoin,
  77                 I_OnChangeHost, I_OnChangeName, I_OnChangeIdent, I_OnUserPart, I_OnUnloadModule,
  78                 I_OnUserQuit, I_OnUserPostNick, I_OnUserKick, I_OnRemoteKill, I_OnRehash, I_OnPreRehash,
  79                 I_OnOper, I_OnAddLine, I_OnDelLine, I_OnMode, I_OnLoadModule, I_OnStats,
  80                 I_OnSetAway, I_OnPostCommand, I_OnUserConnect, I_OnAcceptConnection
  81         };
  82         ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
  83
  84         delete ServerInstance->PI;
  85         ServerInstance->PI = new SpanningTreeProtocolInterface(Utils);
  86         loopCall = false;
  87
  88         // update our local user count
  89         Utils->TreeRoot->UserCount = ServerInstance->Users->local_users.size();
  90 }
  91
  92 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
  93 {
  94         std::string Parent = Utils->TreeRoot->GetName();
  95         if (Current->GetParent())
  96         {
  97                 Parent = Current->GetParent()->GetName();
  98         }
  99         for (unsigned int q = 0; q < Current->ChildCount(); q++)
 100         {
 101                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName()))))
 102                 {
 103                         if (user->IsOper())
 104                         {
 105                                  ShowLinks(Current->GetChild(q),user,hops+1);
 106                         }
 107                 }
 108                 else
 109                 {
 110                         ShowLinks(Current->GetChild(q),user,hops+1);
 111                 }
 112         }
 113         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
 114         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName())) && (!user->IsOper()))
 115                 return;
 116         /* Or if the server is hidden and they're not an oper */
 117         else if ((Current->Hidden) && (!user->IsOper()))
 118                 return;
 119
 120         std::string servername = Current->GetName();
 121         user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick.c_str(), servername.c_str(),
 122                         (Utils->FlatLinks && (!user->IsOper())) ? ServerInstance->Config->ServerName.c_str() : Parent.c_str(),
 123                         (Utils->FlatLinks && (!user->IsOper())) ? 0 : hops,
 124                         Current->GetDesc().c_str());
 125 }
 126
 127 int ModuleSpanningTree::CountServs()
 128 {
 129         return Utils->serverlist.size();
 130 }
 131
 132 void ModuleSpanningTree::HandleLinks(const std::vector<std::string>& parameters, User* user)
 133 {
 134         ShowLinks(Utils->TreeRoot,user,0);
 135         user->WriteNumeric(365, "%s * :End of /LINKS list.",user->nick.c_str());
 136         return;
 137 }
 138
 139 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 140 {
 141         time_t mins_up = secs / 60;
 142         time_t hours_up = mins_up / 60;
 143         time_t days_up = hours_up / 24;
 144         secs = secs % 60;
 145         mins_up = mins_up % 60;
 146         hours_up = hours_up % 24;
 147         return ((days_up ? (ConvToStr(days_up) + "d") : "")
 148                         + (hours_up ? (ConvToStr(hours_up) + "h") : "")
 149                         + (mins_up ? (ConvToStr(mins_up) + "m") : "")
 150                         + ConvToStr(secs) + "s");
 151 }
 152
 153 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 154 {
 155         /*
 156          * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 157          * This prevents lost REMOTECONNECT notices
 158          */
 159         long ts = ServerInstance->Time() * 1000 + (ServerInstance->Time_ns() / 1000000);
 160
 161 restart:
 162         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 163         {
 164                 TreeServer *s = i->second;
 165
 166                 if (s->GetSocket() && s->GetSocket()->GetLinkState() == DYING)
 167                 {
 168                         s->GetSocket()->Close();
 169                         goto restart;
 170                 }
 171
 172                 // Fix for bug #792, do not ping servers that are not connected yet!
 173                 // Remote servers have Socket == NULL and local connected servers have
 174                 // Socket->LinkState == CONNECTED
 175                 if (s->GetSocket() && s->GetSocket()->GetLinkState() != CONNECTED)
 176                         continue;
 177
 178                 // Now do PING checks on all servers
 179                 TreeServer *mts = Utils->BestRouteTo(s->GetID());
 180
 181                 if (mts)
 182                 {
 183                         // Only ping if this server needs one
 184                         if (curtime >= s->NextPingTime())
 185                         {
 186                                 // And if they answered the last
 187                                 if (s->AnsweredLastPing())
 188                                 {
 189                                         // They did, send a ping to them
 190                                         s->SetNextPingTime(curtime + Utils->PingFreq);
 191                                         TreeSocket *tsock = mts->GetSocket();
 192
 193                                         // ... if we can find a proper route to them
 194                                         if (tsock)
 195                                         {
 196                                                 tsock->WriteLine(":" + ServerInstance->Config->GetSID() + " PING " + s->GetID());
 197                                                 s->LastPingMsec = ts;
 198                                         }
 199                                 }
 200                                 else
 201                                 {
 202                                         // They didn't answer the last ping, if they are locally connected, get rid of them.
 203                                         TreeSocket *sock = s->GetSocket();
 204                                         if (sock)
 205                                         {
 206                                                 sock->SendError("Ping timeout");
 207                                                 sock->Close();
 208                                                 goto restart;
 209                                         }
 210                                 }
 211                         }
 212
 213                         // If warn on ping enabled and not warned and the difference is sufficient and they didn't answer the last ping...
 214                         if ((Utils->PingWarnTime) && (!s->Warned) && (curtime >= s->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!s->AnsweredLastPing()))
 215                         {
 216                                 /* The server hasnt responded, send a warning to opers */
 217                                 std::string servername = s->GetName();
 218                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", servername.c_str(), Utils->PingWarnTime);
 219                                 s->Warned = true;
 220                         }
 221                 }
 222         }
 223 }
 224
 225 void ModuleSpanningTree::ConnectServer(Autoconnect* a, bool on_timer)
 226 {
 227         if (!a)
 228                 return;
 229         for(unsigned int j=0; j < a->servers.size(); j++)
 230         {
 231                 if (Utils->FindServer(a->servers[j]))
 232                 {
 233                         // found something in this block. Should the server fail,
 234                         // we want to start at the start of the list, not in the
 235                         // middle where we left off
 236                         a->position = -1;
 237                         return;
 238                 }
 239         }
 240         if (on_timer && a->position >= 0)
 241                 return;
 242         if (!on_timer && a->position < 0)
 243                 return;
 244
 245         a->position++;
 246         while (a->position < (int)a->servers.size())
 247         {
 248                 Link* x = Utils->FindLink(a->servers[a->position]);
 249                 if (x)
 250                 {
 251                         ServerInstance->SNO->WriteToSnoMask('l', "AUTOCONNECT: Auto-connecting server \002%s\002", x->Name.c_str());
 252                         ConnectServer(x, a);
 253                         return;
 254                 }
 255                 a->position++;
 256         }
 257         // Autoconnect chain has been fully iterated; start at the beginning on the
 258         // next AutoConnectServers run
 259         a->position = -1;
 260 }
 261
 262 void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
 263 {
 264         bool ipvalid = true;
 265
 266         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 267         {
 268                 ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
 269                 return;
 270         }
 271
 272         QueryType start_type = DNS_QUERY_A;
 273         start_type = DNS_QUERY_AAAA;
 274         if (strchr(x->IPAddr.c_str(),':'))
 275         {
 276                 in6_addr n;
 277                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 278                         ipvalid = false;
 279         }
 280         else
 281         {
 282                 in_addr n;
 283                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 284                         ipvalid = false;
 285         }
 286
 287         /* Do we already have an IP? If so, no need to resolve it. */
 288         if (ipvalid)
 289         {
 290                 /* Gave a hook, but it wasnt one we know */
 291                 TreeSocket* newsocket = new TreeSocket(Utils, x, y, x->IPAddr);
 292                 if (newsocket->GetFd() > -1)
 293                 {
 294                         /* Handled automatically on success */
 295                 }
 296                 else
 297                 {
 298                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",
 299                                 x->Name.c_str(), newsocket->getError().c_str());
 300                         ServerInstance->GlobalCulls.AddItem(newsocket);
 301                 }
 302         }
 303         else
 304         {
 305                 try
 306                 {
 307                         bool cached = false;
 308                         ServernameResolver* snr = new ServernameResolver(Utils, x->IPAddr, x, cached, start_type, y);
 309                         ServerInstance->AddResolver(snr, cached);
 310                 }
 311                 catch (ModuleException& e)
 312                 {
 313                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 314                         ConnectServer(y, false);
 315                 }
 316         }
 317 }
 318
 319 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 320 {
 321         for (std::vector<reference<Autoconnect> >::iterator i = Utils->AutoconnectBlocks.begin(); i < Utils->AutoconnectBlocks.end(); ++i)
 322         {
 323                 Autoconnect* x = *i;
 324                 if (curtime >= x->NextConnectTime)
 325                 {
 326                         x->NextConnectTime = curtime + x->Period;
 327                         ConnectServer(x, true);
 328                 }
 329         }
 330 }
 331
 332 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 333 {
 334         std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin();
 335         while (i != Utils->timeoutlist.end())
 336         {
 337                 TreeSocket* s = i->first;
 338                 std::pair<std::string, int> p = i->second;
 339                 std::map<TreeSocket*, std::pair<std::string, int> >::iterator me = i;
 340                 i++;
 341                 if (s->GetLinkState() == DYING)
 342                 {
 343                         Utils->timeoutlist.erase(me);
 344                         s->Close();
 345                 }
 346                 else if (curtime > s->age + p.second)
 347                 {
 348                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 349                         Utils->timeoutlist.erase(me);
 350                         s->Close();
 351                 }
 352         }
 353 }
 354
 355 ModResult ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 356 {
 357         // we've already checked if pcnt > 0, so this is safe
 358         TreeServer* found = Utils->FindServerMask(parameters[0]);
 359         if (found)
 360         {
 361                 if (found == Utils->TreeRoot)
 362                 {
 363                         // Pass to default VERSION handler.
 364                         return MOD_RES_PASSTHRU;
 365                 }
 366                 std::string Version = found->GetVersion();
 367                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 368         }
 369         else
 370         {
 371                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 372         }
 373         return MOD_RES_DENY;
 374 }
 375
 376 /* This method will attempt to get a message to a remote user.
 377  */
 378 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 379 {
 380         char text[MAXBUF];
 381         va_list argsPtr;
 382
 383         va_start(argsPtr, format);
 384         vsnprintf(text, MAXBUF, format, argsPtr);
 385         va_end(argsPtr);
 386
 387         if (IS_LOCAL(user))
 388                 user->WriteServ("NOTICE %s :%s", user->nick.c_str(), text);
 389         else
 390                 ServerInstance->PI->SendUserNotice(user, text);
 391 }
 392
 393 ModResult ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 394 {
 395         for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i < Utils->LinkBlocks.end(); i++)
 396         {
 397                 Link* x = *i;
 398                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 399                 {
 400                         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 401                         {
 402                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
 403                                 return MOD_RES_DENY;
 404                         }
 405
 406                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 407                         if (!CheckDupe)
 408                         {
 409                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 410                                 ConnectServer(x);
 411                                 return MOD_RES_DENY;
 412                         }
 413                         else
 414                         {
 415                                 std::string servername = CheckDupe->GetParent()->GetName();
 416                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 already exists on the network and is connected via \002%s\002", x->Name.c_str(), servername.c_str());
 417                                 return MOD_RES_DENY;
 418                         }
 419                 }
 420         }
 421         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 422         return MOD_RES_DENY;
 423 }
 424
 425 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 426 {
 427         TreeServer* s = Utils->FindServer(servername);
 428         if (s)
 429         {
 430                 description = s->GetDesc();
 431         }
 432 }
 433
 434 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 435 {
 436         if (IS_LOCAL(source))
 437         {
 438                 parameterlist params;
 439                 params.push_back(dest->uuid);
 440                 params.push_back(channel->name);
 441                 params.push_back(ConvToStr(expiry));
 442                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 443         }
 444 }
 445
 446 void ModuleSpanningTree::OnPostTopicChange(User* user, Channel* chan, const std::string &topic)
 447 {
 448         // Drop remote events on the floor.
 449         if (!IS_LOCAL(user))
 450                 return;
 451
 452         parameterlist params;
 453         params.push_back(chan->name);
 454         params.push_back(":"+topic);
 455         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 456 }
 457
 458 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 459 {
 460         if (IS_LOCAL(user))
 461         {
 462                 parameterlist params;
 463                 params.push_back(":"+text);
 464                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 465         }
 466 }
 467
 468 void ModuleSpanningTree::LocalMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list, const char* message_type)
 469 {
 470         /* Server or remote origin, dest should always be non-null */
 471         if ((!user) || (!IS_LOCAL(user)) || (!dest))
 472                 return;
 473
 474         if (target_type == TYPE_USER)
 475         {
 476                 User* d = (User*) dest;
 477                 if (!IS_LOCAL(d))
 478                 {
 479                         parameterlist params;
 480                         params.push_back(d->uuid);
 481                         params.push_back(":"+text);
 482                         Utils->DoOneToOne(user->uuid, message_type, params, d->server);
 483                 }
 484         }
 485         else if (target_type == TYPE_CHANNEL)
 486         {
 487                 Utils->SendChannelMessage(user->uuid, (Channel*)dest, text, status, exempt_list, message_type);
 488         }
 489         else if (target_type == TYPE_SERVER)
 490         {
 491                 char* target = (char*) dest;
 492                 parameterlist par;
 493                 par.push_back(target);
 494                 par.push_back(":"+text);
 495                 Utils->DoOneToMany(user->uuid, message_type, par);
 496         }
 497 }
 498
 499 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 500 {
 501         LocalMessage(user, dest, target_type, text, status, exempt_list, "NOTICE");
 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         LocalMessage(user, dest, target_type, text, status, exempt_list, "PRIVMSG");
 507 }
 508
 509 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 510 {
 511         AutoConnectServers(curtime);
 512         DoPingChecks(curtime);
 513         DoConnectTimeout(curtime);
 514 }
 515
 516 void ModuleSpanningTree::OnUserConnect(LocalUser* user)
 517 {
 518         if (user->quitting)
 519                 return;
 520
 521         parameterlist params;
 522         params.push_back(user->uuid);
 523         params.push_back(ConvToStr(user->age));
 524         params.push_back(user->nick);
 525         params.push_back(user->host);
 526         params.push_back(user->dhost);
 527         params.push_back(user->ident);
 528         params.push_back(user->GetIPString());
 529         params.push_back(ConvToStr(user->signon));
 530         params.push_back("+"+std::string(user->FormatModes(true)));
 531         params.push_back(":"+user->fullname);
 532         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 533
 534         if (user->IsOper())
 535         {
 536                 params.clear();
 537                 params.push_back(user->oper->name);
 538                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 539         }
 540
 541         for(Extensible::ExtensibleStore::const_iterator i = user->GetExtList().begin(); i != user->GetExtList().end(); i++)
 542         {
 543                 ExtensionItem* item = i->first;
 544                 std::string value = item->serialize(FORMAT_NETWORK, user, i->second);
 545                 if (!value.empty())
 546                         ServerInstance->PI->SendMetaData(user, item->name, value);
 547         }
 548
 549         Utils->TreeRoot->UserCount++;
 550 }
 551
 552 void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created_by_local, CUList& excepts)
 553 {
 554         // Only do this for local users
 555         if (IS_LOCAL(memb->user))
 556         {
 557                 parameterlist params;
 558                 params.push_back(memb->chan->name);
 559                 if (created_by_local)
 560                 {
 561                         params.push_back(ConvToStr(memb->chan->age));
 562                         params.push_back(std::string("+") + memb->chan->ChanModes(true));
 563                         params.push_back(memb->modes+","+memb->user->uuid);
 564                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 565                 }
 566                 else
 567                 {
 568                         if (!memb->modes.empty())
 569                         {
 570                                 params.push_back(ConvToStr(memb->chan->age));
 571                                 params.push_back(memb->modes);
 572                         }
 573                         Utils->DoOneToMany(memb->user->uuid, "IJOIN", params);
 574                 }
 575         }
 576 }
 577
 578 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 579 {
 580         if (user->registered != REG_ALL || !IS_LOCAL(user))
 581                 return;
 582
 583         parameterlist params;
 584         params.push_back(newhost);
 585         Utils->DoOneToMany(user->uuid,"FHOST",params);
 586 }
 587
 588 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 589 {
 590         if (user->registered != REG_ALL || !IS_LOCAL(user))
 591                 return;
 592
 593         parameterlist params;
 594         params.push_back(gecos);
 595         Utils->DoOneToMany(user->uuid,"FNAME",params);
 596 }
 597
 598 void ModuleSpanningTree::OnChangeIdent(User* user, const std::string &ident)
 599 {
 600         // only occurs for local clients
 601         if (user->registered != REG_ALL)
 602                 return;
 603
 604         parameterlist params;
 605         params.push_back(ident);
 606         Utils->DoOneToMany(user->uuid,"FIDENT",params);
 607 }
 608
 609 void ModuleSpanningTree::OnUserPart(Membership* memb, std::string &partmessage, CUList& excepts)
 610 {
 611         if (IS_LOCAL(memb->user))
 612         {
 613                 parameterlist params;
 614                 params.push_back(memb->chan->name);
 615                 if (!partmessage.empty())
 616                         params.push_back(":"+partmessage);
 617                 Utils->DoOneToMany(memb->user->uuid,"PART",params);
 618         }
 619 }
 620
 621 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 622 {
 623         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 624         {
 625                 parameterlist params;
 626
 627                 if (oper_message != reason)
 628                 {
 629                         params.push_back(":"+oper_message);
 630                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 631                 }
 632                 params.clear();
 633                 params.push_back(":"+reason);
 634                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 635         }
 636
 637         // Regardless, We need to modify the user Counts..
 638         TreeServer* SourceServer = Utils->FindServer(user->server);
 639         if (SourceServer)
 640         {
 641                 SourceServer->UserCount--;
 642         }
 643 }
 644
 645 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 646 {
 647         if (IS_LOCAL(user))
 648         {
 649                 parameterlist params;
 650                 params.push_back(user->nick);
 651
 652                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 653                  */
 654                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 655                         user->age = ServerInstance->Time();
 656
 657                 params.push_back(ConvToStr(user->age));
 658                 Utils->DoOneToMany(user->uuid,"NICK",params);
 659         }
 660         else if (!loopCall && user->nick == user->uuid)
 661         {
 662                 parameterlist params;
 663                 params.push_back(user->uuid);
 664                 params.push_back(ConvToStr(user->age));
 665                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SAVE",params);
 666         }
 667 }
 668
 669 void ModuleSpanningTree::OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts)
 670 {
 671         parameterlist params;
 672         params.push_back(memb->chan->name);
 673         params.push_back(memb->user->uuid);
 674         params.push_back(":"+reason);
 675         if (IS_LOCAL(source))
 676         {
 677                 Utils->DoOneToMany(source->uuid,"KICK",params);
 678         }
 679         else if (source == ServerInstance->FakeClient)
 680         {
 681                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 682         }
 683 }
 684
 685 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 686 {
 687         if (!IS_LOCAL(source))
 688                 return; // Only start routing if we're origin.
 689
 690         ServerInstance->OperQuit.set(dest, operreason);
 691         parameterlist params;
 692         params.push_back(":"+operreason);
 693         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 694         params.clear();
 695         params.push_back(dest->uuid);
 696         params.push_back(":"+reason);
 697         Utils->DoOneToMany(source->uuid,"KILL",params);
 698 }
 699
 700 void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 701 {
 702         if (loopCall)
 703                 return; // Don't generate a REHASH here if we're in the middle of processing a message that generated this one
 704
 705         ServerInstance->Logs->Log("remoterehash", LOG_DEBUG, "called with param %s", parameter.c_str());
 706
 707         // Send out to other servers
 708         if (!parameter.empty() && parameter[0] != '-')
 709         {
 710                 parameterlist params;
 711                 params.push_back(parameter);
 712                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 713         }
 714 }
 715
 716 void ModuleSpanningTree::OnRehash(User* user)
 717 {
 718         // Re-read config stuff
 719         try
 720         {
 721                 Utils->ReadConfiguration();
 722         }
 723         catch (ModuleException& e)
 724         {
 725                 // Refresh the IP cache anyway, so servers read before the error will be allowed to connect
 726                 Utils->RefreshIPCache();
 727                 // Always warn local opers with snomask +l, also warn globally (snomask +L) if the rehash was issued by a remote user
 728                 std::string msg = "Error in configuration: ";
 729                 msg.append(e.GetReason());
 730                 ServerInstance->SNO->WriteToSnoMask('l', msg);
 731                 if (!IS_LOCAL(user))
 732                         ServerInstance->PI->SendSNONotice("L", msg);
 733         }
 734 }
 735
 736 void ModuleSpanningTree::OnLoadModule(Module* mod)
 737 {
 738         std::string data;
 739         data.push_back('+');
 740         data.append(mod->ModuleSourceFile);
 741         Version v = mod->GetVersion();
 742         if (!v.link_data.empty())
 743         {
 744                 data.push_back('=');
 745                 data.append(v.link_data);
 746         }
 747         ServerInstance->PI->SendMetaData(NULL, "modules", data);
 748 }
 749
 750 void ModuleSpanningTree::OnUnloadModule(Module* mod)
 751 {
 752         ServerInstance->PI->SendMetaData(NULL, "modules", "-" + mod->ModuleSourceFile);
 753
 754         unsigned int items = Utils->TreeRoot->ChildCount();
 755         for(unsigned int x = 0; x < items; x++)
 756         {
 757                 TreeServer* srv = Utils->TreeRoot->GetChild(x);
 758                 TreeSocket* sock = srv->GetSocket();
 759                 if (sock && sock->GetIOHook() == mod)
 760                 {
 761                         sock->SendError("SSL module unloaded");
 762                         sock->Close();
 763                 }
 764         }
 765 }
 766
 767 // note: the protocol does not allow direct umode +o except
 768 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 769 // locally.
 770 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 771 {
 772         if (user->registered != REG_ALL || !IS_LOCAL(user))
 773                 return;
 774         parameterlist params;
 775         params.push_back(opertype);
 776         Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 777 }
 778
 779 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 780 {
 781         if (!x->IsBurstable() || loopCall)
 782                 return;
 783
 784         parameterlist params;
 785         params.push_back(x->type);
 786         params.push_back(x->Displayable());
 787         params.push_back(ServerInstance->Config->ServerName);
 788         params.push_back(ConvToStr(x->set_time));
 789         params.push_back(ConvToStr(x->duration));
 790         params.push_back(":" + x->reason);
 791
 792         if (!user)
 793         {
 794                 /* Server-set lines */
 795                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 796         }
 797         else if (IS_LOCAL(user))
 798         {
 799                 /* User-set lines */
 800                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 801         }
 802 }
 803
 804 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 805 {
 806         if (!x->IsBurstable() || loopCall)
 807                 return;
 808
 809         parameterlist params;
 810         params.push_back(x->type);
 811         params.push_back(x->Displayable());
 812
 813         if (!user)
 814         {
 815                 /* Server-unset lines */
 816                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 817         }
 818         else if (IS_LOCAL(user))
 819         {
 820                 /* User-unset lines */
 821                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 822         }
 823 }
 824
 825 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const parameterlist &text, const std::vector<TranslateType> &translate)
 826 {
 827         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 828         {
 829                 parameterlist params;
 830                 std::string output_text;
 831
 832                 ServerInstance->Parser->TranslateUIDs(translate, text, output_text);
 833
 834                 if (target_type == TYPE_USER)
 835                 {
 836                         User* u = (User*)dest;
 837                         params.push_back(u->uuid);
 838                         params.push_back(output_text);
 839                         Utils->DoOneToMany(user->uuid, "MODE", params);
 840                 }
 841                 else
 842                 {
 843                         Channel* c = (Channel*)dest;
 844                         params.push_back(c->name);
 845                         params.push_back(ConvToStr(c->age));
 846                         params.push_back(output_text);
 847                         Utils->DoOneToMany(user->uuid, "FMODE", params);
 848                 }
 849         }
 850 }
 851
 852 ModResult ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 853 {
 854         if (IS_LOCAL(user))
 855         {
 856                 parameterlist params;
 857                 if (!awaymsg.empty())
 858                 {
 859                         params.push_back(ConvToStr(user->awaytime));
 860                         params.push_back(":" + awaymsg);
 861                 }
 862                 Utils->DoOneToMany(user->uuid, "AWAY", params);
 863         }
 864
 865         return MOD_RES_PASSTHRU;
 866 }
 867
 868 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const parameterlist &modeline, const std::vector<TranslateType> &translate)
 869 {
 870         TreeSocket* s = (TreeSocket*)opaque;
 871         std::string output_text;
 872
 873         ServerInstance->Parser->TranslateUIDs(translate, modeline, output_text);
 874
 875         if (target)
 876         {
 877                 if (target_type == TYPE_USER)
 878                 {
 879                         User* u = (User*)target;
 880                         s->WriteLine(":"+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 881                 }
 882                 else if (target_type == TYPE_CHANNEL)
 883                 {
 884                         Channel* c = (Channel*)target;
 885                         s->WriteLine(":"+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 886                 }
 887         }
 888 }
 889
 890 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, Extensible* target, const std::string &extname, const std::string &extdata)
 891 {
 892         TreeSocket* s = static_cast<TreeSocket*>(opaque);
 893         User* u = dynamic_cast<User*>(target);
 894         Channel* c = dynamic_cast<Channel*>(target);
 895         if (u)
 896                 s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 897         else if (c)
 898                 s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+ConvToStr(c->age)+" "+extname+" :"+extdata);
 899         else if (!target)
 900                 s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 901 }
 902
 903 CullResult ModuleSpanningTree::cull()
 904 {
 905         Utils->cull();
 906         return this->Module::cull();
 907 }
 908
 909 ModuleSpanningTree::~ModuleSpanningTree()
 910 {
 911         delete ServerInstance->PI;
 912         ServerInstance->PI = new ProtocolInterface;
 913
 914         /* This will also free the listeners */
 915         delete Utils;
 916
 917         delete commands;
 918 }
 919
 920 Version ModuleSpanningTree::GetVersion()
 921 {
 922         return Version("Allows servers to be linked", VF_VENDOR);
 923 }
 924
 925 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 926  * so that any activity it sees is FINAL, e.g. we arent going to send out
 927  * a NICK message before m_cloaking has finished putting the +x on the user,
 928  * etc etc.
 929  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 930  * the module call queue.
 931  */
 932 void ModuleSpanningTree::Prioritize()
 933 {
 934         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 935 }
 936
 937 MODULE_INIT(ModuleSpanningTree)