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 "cachetimer.h"
  31 #include "resolvers.h"
  32 #include "main.h"
  33 #include "utils.h"
  34 #include "treeserver.h"
  35 #include "link.h"
  36 #include "treesocket.h"
  37 #include "commands.h"
  38 #include "protocolinterface.h"
  39
  40 ModuleSpanningTree::ModuleSpanningTree()
  41 {
  42         Utils = new SpanningTreeUtilities(this);
  43         commands = new SpanningTreeCommands(this);
  44         RefreshTimer = NULL;
  45 }
  46
  47 SpanningTreeCommands::SpanningTreeCommands(ModuleSpanningTree* module)
  48         : rconnect(module, module->Utils), rsquit(module, module->Utils),
  49         svsjoin(module), svspart(module), svsnick(module), metadata(module),
  50         uid(module), opertype(module), fjoin(module), ijoin(module), resync(module),
  51         fmode(module), ftopic(module), fhost(module), fident(module), fname(module)
  52 {
  53 }
  54
  55 void ModuleSpanningTree::init()
  56 {
  57         ServerInstance->Modules->AddService(commands->rconnect);
  58         ServerInstance->Modules->AddService(commands->rsquit);
  59         ServerInstance->Modules->AddService(commands->svsjoin);
  60         ServerInstance->Modules->AddService(commands->svspart);
  61         ServerInstance->Modules->AddService(commands->svsnick);
  62         ServerInstance->Modules->AddService(commands->metadata);
  63         ServerInstance->Modules->AddService(commands->uid);
  64         ServerInstance->Modules->AddService(commands->opertype);
  65         ServerInstance->Modules->AddService(commands->fjoin);
  66         ServerInstance->Modules->AddService(commands->ijoin);
  67         ServerInstance->Modules->AddService(commands->resync);
  68         ServerInstance->Modules->AddService(commands->fmode);
  69         ServerInstance->Modules->AddService(commands->ftopic);
  70         ServerInstance->Modules->AddService(commands->fhost);
  71         ServerInstance->Modules->AddService(commands->fident);
  72         ServerInstance->Modules->AddService(commands->fname);
  73         RefreshTimer = new CacheRefreshTimer(Utils);
  74         ServerInstance->Timers->AddTimer(RefreshTimer);
  75
  76         Implementation eventlist[] =
  77         {
  78                 I_OnPreCommand, I_OnGetServerDescription, I_OnUserInvite, I_OnPostTopicChange,
  79                 I_OnWallops, I_OnUserNotice, I_OnUserMessage, I_OnBackgroundTimer, I_OnUserJoin,
  80                 I_OnChangeHost, I_OnChangeName, I_OnChangeIdent, I_OnUserPart, I_OnUnloadModule,
  81                 I_OnUserQuit, I_OnUserPostNick, I_OnUserKick, I_OnRemoteKill, I_OnRehash, I_OnPreRehash,
  82                 I_OnOper, I_OnAddLine, I_OnDelLine, I_OnMode, I_OnLoadModule, I_OnStats,
  83                 I_OnSetAway, I_OnPostCommand, I_OnUserConnect, I_OnAcceptConnection
  84         };
  85         ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
  86
  87         delete ServerInstance->PI;
  88         ServerInstance->PI = new SpanningTreeProtocolInterface(Utils);
  89         loopCall = false;
  90
  91         // update our local user count
  92         Utils->TreeRoot->UserCount = ServerInstance->Users->local_users.size();
  93 }
  94
  95 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
  96 {
  97         std::string Parent = Utils->TreeRoot->GetName();
  98         if (Current->GetParent())
  99         {
 100                 Parent = Current->GetParent()->GetName();
 101         }
 102         for (unsigned int q = 0; q < Current->ChildCount(); q++)
 103         {
 104                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName()))))
 105                 {
 106                         if (user->IsOper())
 107                         {
 108                                  ShowLinks(Current->GetChild(q),user,hops+1);
 109                         }
 110                 }
 111                 else
 112                 {
 113                         ShowLinks(Current->GetChild(q),user,hops+1);
 114                 }
 115         }
 116         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
 117         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName())) && (!user->IsOper()))
 118                 return;
 119         /* Or if the server is hidden and they're not an oper */
 120         else if ((Current->Hidden) && (!user->IsOper()))
 121                 return;
 122
 123         std::string servername = Current->GetName();
 124         user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick.c_str(), servername.c_str(),
 125                         (Utils->FlatLinks && (!user->IsOper())) ? ServerInstance->Config->ServerName.c_str() : Parent.c_str(),
 126                         (Utils->FlatLinks && (!user->IsOper())) ? 0 : hops,
 127                         Current->GetDesc().c_str());
 128 }
 129
 130 int ModuleSpanningTree::CountServs()
 131 {
 132         return Utils->serverlist.size();
 133 }
 134
 135 void ModuleSpanningTree::HandleLinks(const std::vector<std::string>& parameters, User* user)
 136 {
 137         ShowLinks(Utils->TreeRoot,user,0);
 138         user->WriteNumeric(365, "%s * :End of /LINKS list.",user->nick.c_str());
 139         return;
 140 }
 141
 142 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 143 {
 144         time_t mins_up = secs / 60;
 145         time_t hours_up = mins_up / 60;
 146         time_t days_up = hours_up / 24;
 147         secs = secs % 60;
 148         mins_up = mins_up % 60;
 149         hours_up = hours_up % 24;
 150         return ((days_up ? (ConvToStr(days_up) + "d") : "")
 151                         + (hours_up ? (ConvToStr(hours_up) + "h") : "")
 152                         + (mins_up ? (ConvToStr(mins_up) + "m") : "")
 153                         + ConvToStr(secs) + "s");
 154 }
 155
 156 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 157 {
 158         /*
 159          * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 160          * This prevents lost REMOTECONNECT notices
 161          */
 162         long ts = ServerInstance->Time() * 1000 + (ServerInstance->Time_ns() / 1000000);
 163
 164 restart:
 165         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 166         {
 167                 TreeServer *s = i->second;
 168
 169                 if (s->GetSocket() && s->GetSocket()->GetLinkState() == DYING)
 170                 {
 171                         s->GetSocket()->Close();
 172                         goto restart;
 173                 }
 174
 175                 // Fix for bug #792, do not ping servers that are not connected yet!
 176                 // Remote servers have Socket == NULL and local connected servers have
 177                 // Socket->LinkState == CONNECTED
 178                 if (s->GetSocket() && s->GetSocket()->GetLinkState() != CONNECTED)
 179                         continue;
 180
 181                 // Now do PING checks on all servers
 182                 TreeServer *mts = Utils->BestRouteTo(s->GetID());
 183
 184                 if (mts)
 185                 {
 186                         // Only ping if this server needs one
 187                         if (curtime >= s->NextPingTime())
 188                         {
 189                                 // And if they answered the last
 190                                 if (s->AnsweredLastPing())
 191                                 {
 192                                         // They did, send a ping to them
 193                                         s->SetNextPingTime(curtime + Utils->PingFreq);
 194                                         TreeSocket *tsock = mts->GetSocket();
 195
 196                                         // ... if we can find a proper route to them
 197                                         if (tsock)
 198                                         {
 199                                                 tsock->WriteLine(":" + ServerInstance->Config->GetSID() + " PING " +
 200                                                                 ServerInstance->Config->GetSID() + " " + s->GetID());
 201                                                 s->LastPingMsec = ts;
 202                                         }
 203                                 }
 204                                 else
 205                                 {
 206                                         // They didn't answer the last ping, if they are locally connected, get rid of them.
 207                                         TreeSocket *sock = s->GetSocket();
 208                                         if (sock)
 209                                         {
 210                                                 sock->SendError("Ping timeout");
 211                                                 sock->Close();
 212                                                 goto restart;
 213                                         }
 214                                 }
 215                         }
 216
 217                         // If warn on ping enabled and not warned and the difference is sufficient and they didn't answer the last ping...
 218                         if ((Utils->PingWarnTime) && (!s->Warned) && (curtime >= s->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!s->AnsweredLastPing()))
 219                         {
 220                                 /* The server hasnt responded, send a warning to opers */
 221                                 std::string servername = s->GetName();
 222                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", servername.c_str(), Utils->PingWarnTime);
 223                                 s->Warned = true;
 224                         }
 225                 }
 226         }
 227 }
 228
 229 void ModuleSpanningTree::ConnectServer(Autoconnect* a, bool on_timer)
 230 {
 231         if (!a)
 232                 return;
 233         for(unsigned int j=0; j < a->servers.size(); j++)
 234         {
 235                 if (Utils->FindServer(a->servers[j]))
 236                 {
 237                         // found something in this block. Should the server fail,
 238                         // we want to start at the start of the list, not in the
 239                         // middle where we left off
 240                         a->position = -1;
 241                         return;
 242                 }
 243         }
 244         if (on_timer && a->position >= 0)
 245                 return;
 246         if (!on_timer && a->position < 0)
 247                 return;
 248
 249         a->position++;
 250         while (a->position < (int)a->servers.size())
 251         {
 252                 Link* x = Utils->FindLink(a->servers[a->position]);
 253                 if (x)
 254                 {
 255                         ServerInstance->SNO->WriteToSnoMask('l', "AUTOCONNECT: Auto-connecting server \002%s\002", x->Name.c_str());
 256                         ConnectServer(x, a);
 257                         return;
 258                 }
 259                 a->position++;
 260         }
 261         // Autoconnect chain has been fully iterated; start at the beginning on the
 262         // next AutoConnectServers run
 263         a->position = -1;
 264 }
 265
 266 void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
 267 {
 268         bool ipvalid = true;
 269
 270         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 271         {
 272                 ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
 273                 return;
 274         }
 275
 276         QueryType start_type = DNS_QUERY_A;
 277         start_type = DNS_QUERY_AAAA;
 278         if (strchr(x->IPAddr.c_str(),':'))
 279         {
 280                 in6_addr n;
 281                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 282                         ipvalid = false;
 283         }
 284         else
 285         {
 286                 in_addr n;
 287                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 288                         ipvalid = false;
 289         }
 290
 291         /* Do we already have an IP? If so, no need to resolve it. */
 292         if (ipvalid)
 293         {
 294                 /* Gave a hook, but it wasnt one we know */
 295                 TreeSocket* newsocket = new TreeSocket(Utils, x, y, x->IPAddr);
 296                 if (newsocket->GetFd() > -1)
 297                 {
 298                         /* Handled automatically on success */
 299                 }
 300                 else
 301                 {
 302                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",
 303                                 x->Name.c_str(), newsocket->getError().c_str());
 304                         ServerInstance->GlobalCulls.AddItem(newsocket);
 305                 }
 306         }
 307         else
 308         {
 309                 try
 310                 {
 311                         bool cached = false;
 312                         ServernameResolver* snr = new ServernameResolver(Utils, x->IPAddr, x, cached, start_type, y);
 313                         ServerInstance->AddResolver(snr, cached);
 314                 }
 315                 catch (ModuleException& e)
 316                 {
 317                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 318                         ConnectServer(y, false);
 319                 }
 320         }
 321 }
 322
 323 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 324 {
 325         for (std::vector<reference<Autoconnect> >::iterator i = Utils->AutoconnectBlocks.begin(); i < Utils->AutoconnectBlocks.end(); ++i)
 326         {
 327                 Autoconnect* x = *i;
 328                 if (curtime >= x->NextConnectTime)
 329                 {
 330                         x->NextConnectTime = curtime + x->Period;
 331                         ConnectServer(x, true);
 332                 }
 333         }
 334 }
 335
 336 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 337 {
 338         std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin();
 339         while (i != Utils->timeoutlist.end())
 340         {
 341                 TreeSocket* s = i->first;
 342                 std::pair<std::string, int> p = i->second;
 343                 std::map<TreeSocket*, std::pair<std::string, int> >::iterator me = i;
 344                 i++;
 345                 if (s->GetLinkState() == DYING)
 346                 {
 347                         Utils->timeoutlist.erase(me);
 348                         s->Close();
 349                 }
 350                 else if (curtime > s->age + p.second)
 351                 {
 352                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 353                         Utils->timeoutlist.erase(me);
 354                         s->Close();
 355                 }
 356         }
 357 }
 358
 359 ModResult ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 360 {
 361         // we've already checked if pcnt > 0, so this is safe
 362         TreeServer* found = Utils->FindServerMask(parameters[0]);
 363         if (found)
 364         {
 365                 if (found == Utils->TreeRoot)
 366                 {
 367                         // Pass to default VERSION handler.
 368                         return MOD_RES_PASSTHRU;
 369                 }
 370                 std::string Version = found->GetVersion();
 371                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 372         }
 373         else
 374         {
 375                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 376         }
 377         return MOD_RES_DENY;
 378 }
 379
 380 /* This method will attempt to get a message to a remote user.
 381  */
 382 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 383 {
 384         char text[MAXBUF];
 385         va_list argsPtr;
 386
 387         va_start(argsPtr, format);
 388         vsnprintf(text, MAXBUF, format, argsPtr);
 389         va_end(argsPtr);
 390
 391         if (IS_LOCAL(user))
 392                 user->WriteServ("NOTICE %s :%s", user->nick.c_str(), text);
 393         else
 394                 ServerInstance->PI->SendUserNotice(user, text);
 395 }
 396
 397 ModResult ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 398 {
 399         for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i < Utils->LinkBlocks.end(); i++)
 400         {
 401                 Link* x = *i;
 402                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 403                 {
 404                         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 405                         {
 406                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
 407                                 return MOD_RES_DENY;
 408                         }
 409
 410                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 411                         if (!CheckDupe)
 412                         {
 413                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 414                                 ConnectServer(x);
 415                                 return MOD_RES_DENY;
 416                         }
 417                         else
 418                         {
 419                                 std::string servername = CheckDupe->GetParent()->GetName();
 420                                 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());
 421                                 return MOD_RES_DENY;
 422                         }
 423                 }
 424         }
 425         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 426         return MOD_RES_DENY;
 427 }
 428
 429 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 430 {
 431         TreeServer* s = Utils->FindServer(servername);
 432         if (s)
 433         {
 434                 description = s->GetDesc();
 435         }
 436 }
 437
 438 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 439 {
 440         if (IS_LOCAL(source))
 441         {
 442                 parameterlist params;
 443                 params.push_back(dest->uuid);
 444                 params.push_back(channel->name);
 445                 params.push_back(ConvToStr(expiry));
 446                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 447         }
 448 }
 449
 450 void ModuleSpanningTree::OnPostTopicChange(User* user, Channel* chan, const std::string &topic)
 451 {
 452         // Drop remote events on the floor.
 453         if (!IS_LOCAL(user))
 454                 return;
 455
 456         parameterlist params;
 457         params.push_back(chan->name);
 458         params.push_back(":"+topic);
 459         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 460 }
 461
 462 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 463 {
 464         if (IS_LOCAL(user))
 465         {
 466                 parameterlist params;
 467                 params.push_back(":"+text);
 468                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 469         }
 470 }
 471
 472 void ModuleSpanningTree::LocalMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list, const char* message_type)
 473 {
 474         /* Server or remote origin, dest should always be non-null */
 475         if ((!user) || (!IS_LOCAL(user)) || (!dest))
 476                 return;
 477
 478         if (target_type == TYPE_USER)
 479         {
 480                 User* d = (User*) dest;
 481                 if (!IS_LOCAL(d))
 482                 {
 483                         parameterlist params;
 484                         params.push_back(d->uuid);
 485                         params.push_back(":"+text);
 486                         Utils->DoOneToOne(user->uuid, message_type, params, d->server);
 487                 }
 488         }
 489         else if (target_type == TYPE_CHANNEL)
 490         {
 491                 Utils->SendChannelMessage(user->uuid, (Channel*)dest, text, status, exempt_list, message_type);
 492         }
 493         else if (target_type == TYPE_SERVER)
 494         {
 495                 char* target = (char*) dest;
 496                 parameterlist par;
 497                 par.push_back(target);
 498                 par.push_back(":"+text);
 499                 Utils->DoOneToMany(user->uuid, message_type, par);
 500         }
 501 }
 502
 503 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 504 {
 505         LocalMessage(user, dest, target_type, text, status, exempt_list, "NOTICE");
 506 }
 507
 508 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 509 {
 510         LocalMessage(user, dest, target_type, text, status, exempt_list, "PRIVMSG");
 511 }
 512
 513 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 514 {
 515         AutoConnectServers(curtime);
 516         DoPingChecks(curtime);
 517         DoConnectTimeout(curtime);
 518 }
 519
 520 void ModuleSpanningTree::OnUserConnect(LocalUser* user)
 521 {
 522         if (user->quitting)
 523                 return;
 524
 525         parameterlist params;
 526         params.push_back(user->uuid);
 527         params.push_back(ConvToStr(user->age));
 528         params.push_back(user->nick);
 529         params.push_back(user->host);
 530         params.push_back(user->dhost);
 531         params.push_back(user->ident);
 532         params.push_back(user->GetIPString());
 533         params.push_back(ConvToStr(user->signon));
 534         params.push_back("+"+std::string(user->FormatModes(true)));
 535         params.push_back(":"+user->fullname);
 536         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 537
 538         if (user->IsOper())
 539         {
 540                 params.clear();
 541                 params.push_back(user->oper->name);
 542                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 543         }
 544
 545         for(Extensible::ExtensibleStore::const_iterator i = user->GetExtList().begin(); i != user->GetExtList().end(); i++)
 546         {
 547                 ExtensionItem* item = i->first;
 548                 std::string value = item->serialize(FORMAT_NETWORK, user, i->second);
 549                 if (!value.empty())
 550                         ServerInstance->PI->SendMetaData(user, item->name, value);
 551         }
 552
 553         Utils->TreeRoot->UserCount++;
 554 }
 555
 556 void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created_by_local, CUList& excepts)
 557 {
 558         // Only do this for local users
 559         if (IS_LOCAL(memb->user))
 560         {
 561                 parameterlist params;
 562                 params.push_back(memb->chan->name);
 563                 if (created_by_local)
 564                 {
 565                         params.push_back(ConvToStr(memb->chan->age));
 566                         params.push_back(std::string("+") + memb->chan->ChanModes(true));
 567                         params.push_back(memb->modes+","+memb->user->uuid);
 568                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 569                 }
 570                 else
 571                 {
 572                         if (!memb->modes.empty())
 573                         {
 574                                 params.push_back(ConvToStr(memb->chan->age));
 575                                 params.push_back(memb->modes);
 576                         }
 577                         Utils->DoOneToMany(memb->user->uuid, "IJOIN", params);
 578                 }
 579         }
 580 }
 581
 582 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 583 {
 584         if (user->registered != REG_ALL || !IS_LOCAL(user))
 585                 return;
 586
 587         parameterlist params;
 588         params.push_back(newhost);
 589         Utils->DoOneToMany(user->uuid,"FHOST",params);
 590 }
 591
 592 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 593 {
 594         if (user->registered != REG_ALL || !IS_LOCAL(user))
 595                 return;
 596
 597         parameterlist params;
 598         params.push_back(gecos);
 599         Utils->DoOneToMany(user->uuid,"FNAME",params);
 600 }
 601
 602 void ModuleSpanningTree::OnChangeIdent(User* user, const std::string &ident)
 603 {
 604         // only occurs for local clients
 605         if (user->registered != REG_ALL)
 606                 return;
 607
 608         parameterlist params;
 609         params.push_back(ident);
 610         Utils->DoOneToMany(user->uuid,"FIDENT",params);
 611 }
 612
 613 void ModuleSpanningTree::OnUserPart(Membership* memb, std::string &partmessage, CUList& excepts)
 614 {
 615         if (IS_LOCAL(memb->user))
 616         {
 617                 parameterlist params;
 618                 params.push_back(memb->chan->name);
 619                 if (!partmessage.empty())
 620                         params.push_back(":"+partmessage);
 621                 Utils->DoOneToMany(memb->user->uuid,"PART",params);
 622         }
 623 }
 624
 625 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 626 {
 627         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 628         {
 629                 parameterlist params;
 630
 631                 if (oper_message != reason)
 632                 {
 633                         params.push_back(":"+oper_message);
 634                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 635                 }
 636                 params.clear();
 637                 params.push_back(":"+reason);
 638                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 639         }
 640
 641         // Regardless, We need to modify the user Counts..
 642         TreeServer* SourceServer = Utils->FindServer(user->server);
 643         if (SourceServer)
 644         {
 645                 SourceServer->UserCount--;
 646         }
 647 }
 648
 649 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 650 {
 651         if (IS_LOCAL(user))
 652         {
 653                 parameterlist params;
 654                 params.push_back(user->nick);
 655
 656                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 657                  */
 658                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 659                         user->age = ServerInstance->Time();
 660
 661                 params.push_back(ConvToStr(user->age));
 662                 Utils->DoOneToMany(user->uuid,"NICK",params);
 663         }
 664         else if (!loopCall && user->nick == user->uuid)
 665         {
 666                 parameterlist params;
 667                 params.push_back(user->uuid);
 668                 params.push_back(ConvToStr(user->age));
 669                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SAVE",params);
 670         }
 671 }
 672
 673 void ModuleSpanningTree::OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts)
 674 {
 675         parameterlist params;
 676         params.push_back(memb->chan->name);
 677         params.push_back(memb->user->uuid);
 678         params.push_back(":"+reason);
 679         if (IS_LOCAL(source))
 680         {
 681                 Utils->DoOneToMany(source->uuid,"KICK",params);
 682         }
 683         else if (source == ServerInstance->FakeClient)
 684         {
 685                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 686         }
 687 }
 688
 689 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 690 {
 691         if (!IS_LOCAL(source))
 692                 return; // Only start routing if we're origin.
 693
 694         ServerInstance->OperQuit.set(dest, operreason);
 695         parameterlist params;
 696         params.push_back(":"+operreason);
 697         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 698         params.clear();
 699         params.push_back(dest->uuid);
 700         params.push_back(":"+reason);
 701         Utils->DoOneToMany(source->uuid,"KILL",params);
 702 }
 703
 704 void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 705 {
 706         if (loopCall)
 707                 return; // Don't generate a REHASH here if we're in the middle of processing a message that generated this one
 708
 709         ServerInstance->Logs->Log("remoterehash", LOG_DEBUG, "called with param %s", parameter.c_str());
 710
 711         // Send out to other servers
 712         if (!parameter.empty() && parameter[0] != '-')
 713         {
 714                 parameterlist params;
 715                 params.push_back(parameter);
 716                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 717         }
 718 }
 719
 720 void ModuleSpanningTree::OnRehash(User* user)
 721 {
 722         // Re-read config stuff
 723         try
 724         {
 725                 Utils->ReadConfiguration();
 726         }
 727         catch (ModuleException& e)
 728         {
 729                 // Refresh the IP cache anyway, so servers read before the error will be allowed to connect
 730                 Utils->RefreshIPCache();
 731                 // Always warn local opers with snomask +l, also warn globally (snomask +L) if the rehash was issued by a remote user
 732                 std::string msg = "Error in configuration: ";
 733                 msg.append(e.GetReason());
 734                 ServerInstance->SNO->WriteToSnoMask('l', msg);
 735                 if (!IS_LOCAL(user))
 736                         ServerInstance->PI->SendSNONotice("L", msg);
 737         }
 738 }
 739
 740 void ModuleSpanningTree::OnLoadModule(Module* mod)
 741 {
 742         std::string data;
 743         data.push_back('+');
 744         data.append(mod->ModuleSourceFile);
 745         Version v = mod->GetVersion();
 746         if (!v.link_data.empty())
 747         {
 748                 data.push_back('=');
 749                 data.append(v.link_data);
 750         }
 751         ServerInstance->PI->SendMetaData(NULL, "modules", data);
 752 }
 753
 754 void ModuleSpanningTree::OnUnloadModule(Module* mod)
 755 {
 756         ServerInstance->PI->SendMetaData(NULL, "modules", "-" + mod->ModuleSourceFile);
 757
 758         unsigned int items = Utils->TreeRoot->ChildCount();
 759         for(unsigned int x = 0; x < items; x++)
 760         {
 761                 TreeServer* srv = Utils->TreeRoot->GetChild(x);
 762                 TreeSocket* sock = srv->GetSocket();
 763                 if (sock && sock->GetIOHook() == mod)
 764                 {
 765                         sock->SendError("SSL module unloaded");
 766                         sock->Close();
 767                 }
 768         }
 769 }
 770
 771 // note: the protocol does not allow direct umode +o except
 772 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 773 // locally.
 774 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 775 {
 776         if (user->registered != REG_ALL || !IS_LOCAL(user))
 777                 return;
 778         parameterlist params;
 779         params.push_back(opertype);
 780         Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 781 }
 782
 783 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 784 {
 785         if (!x->IsBurstable() || loopCall)
 786                 return;
 787
 788         parameterlist params;
 789         params.push_back(x->type);
 790         params.push_back(x->Displayable());
 791         params.push_back(ServerInstance->Config->ServerName);
 792         params.push_back(ConvToStr(x->set_time));
 793         params.push_back(ConvToStr(x->duration));
 794         params.push_back(":" + x->reason);
 795
 796         if (!user)
 797         {
 798                 /* Server-set lines */
 799                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 800         }
 801         else if (IS_LOCAL(user))
 802         {
 803                 /* User-set lines */
 804                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 805         }
 806 }
 807
 808 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 809 {
 810         if (!x->IsBurstable() || loopCall)
 811                 return;
 812
 813         parameterlist params;
 814         params.push_back(x->type);
 815         params.push_back(x->Displayable());
 816
 817         if (!user)
 818         {
 819                 /* Server-unset lines */
 820                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 821         }
 822         else if (IS_LOCAL(user))
 823         {
 824                 /* User-unset lines */
 825                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 826         }
 827 }
 828
 829 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const parameterlist &text, const std::vector<TranslateType> &translate)
 830 {
 831         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 832         {
 833                 parameterlist params;
 834                 std::string output_text;
 835
 836                 ServerInstance->Parser->TranslateUIDs(translate, text, output_text);
 837
 838                 if (target_type == TYPE_USER)
 839                 {
 840                         User* u = (User*)dest;
 841                         params.push_back(u->uuid);
 842                         params.push_back(output_text);
 843                         Utils->DoOneToMany(user->uuid, "MODE", params);
 844                 }
 845                 else
 846                 {
 847                         Channel* c = (Channel*)dest;
 848                         params.push_back(c->name);
 849                         params.push_back(ConvToStr(c->age));
 850                         params.push_back(output_text);
 851                         Utils->DoOneToMany(user->uuid, "FMODE", params);
 852                 }
 853         }
 854 }
 855
 856 ModResult ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 857 {
 858         if (IS_LOCAL(user))
 859         {
 860                 parameterlist params;
 861                 if (!awaymsg.empty())
 862                 {
 863                         params.push_back(ConvToStr(user->awaytime));
 864                         params.push_back(":" + awaymsg);
 865                 }
 866                 Utils->DoOneToMany(user->uuid, "AWAY", params);
 867         }
 868
 869         return MOD_RES_PASSTHRU;
 870 }
 871
 872 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const parameterlist &modeline, const std::vector<TranslateType> &translate)
 873 {
 874         TreeSocket* s = (TreeSocket*)opaque;
 875         std::string output_text;
 876
 877         ServerInstance->Parser->TranslateUIDs(translate, modeline, output_text);
 878
 879         if (target)
 880         {
 881                 if (target_type == TYPE_USER)
 882                 {
 883                         User* u = (User*)target;
 884                         s->WriteLine(":"+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 885                 }
 886                 else if (target_type == TYPE_CHANNEL)
 887                 {
 888                         Channel* c = (Channel*)target;
 889                         s->WriteLine(":"+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 890                 }
 891         }
 892 }
 893
 894 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, Extensible* target, const std::string &extname, const std::string &extdata)
 895 {
 896         TreeSocket* s = static_cast<TreeSocket*>(opaque);
 897         User* u = dynamic_cast<User*>(target);
 898         Channel* c = dynamic_cast<Channel*>(target);
 899         if (u)
 900                 s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 901         else if (c)
 902                 s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+ConvToStr(c->age)+" "+extname+" :"+extdata);
 903         else if (!target)
 904                 s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 905 }
 906
 907 CullResult ModuleSpanningTree::cull()
 908 {
 909         Utils->cull();
 910         ServerInstance->Timers->DelTimer(RefreshTimer);
 911         return this->Module::cull();
 912 }
 913
 914 ModuleSpanningTree::~ModuleSpanningTree()
 915 {
 916         delete ServerInstance->PI;
 917         ServerInstance->PI = new ProtocolInterface;
 918
 919         /* This will also free the listeners */
 920         delete Utils;
 921
 922         delete commands;
 923 }
 924
 925 Version ModuleSpanningTree::GetVersion()
 926 {
 927         return Version("Allows servers to be linked", VF_VENDOR);
 928 }
 929
 930 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 931  * so that any activity it sees is FINAL, e.g. we arent going to send out
 932  * a NICK message before m_cloaking has finished putting the +x on the user,
 933  * etc etc.
 934  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 935  * the module call queue.
 936  */
 937 void ModuleSpanningTree::Prioritize()
 938 {
 939         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 940 }
 941
 942 MODULE_INIT(ModuleSpanningTree)