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 #include "inspircd.h"
  25 #include "socket.h"
  26 #include "xline.h"
  27 #include "iohook.h"
  28
  29 #include "resolvers.h"
  30 #include "main.h"
  31 #include "utils.h"
  32 #include "treeserver.h"
  33 #include "link.h"
  34 #include "treesocket.h"
  35 #include "commands.h"
  36 #include "protocolinterface.h"
  37
  38 ModuleSpanningTree::ModuleSpanningTree()
  39         : commands(NULL), DNS(this, "DNS")
  40 {
  41 }
  42
  43 SpanningTreeCommands::SpanningTreeCommands(ModuleSpanningTree* module)
  44         : rconnect(module), rsquit(module), map(module),
  45         svsjoin(module), svspart(module), svsnick(module), metadata(module),
  46         uid(module), opertype(module), fjoin(module), ijoin(module), resync(module),
  47         fmode(module), ftopic(module), fhost(module), fident(module), fname(module),
  48         away(module), addline(module), delline(module), encap(module), idle(module),
  49         nick(module), ping(module), pong(module), push(module), save(module),
  50         server(module), squit(module), snonotice(module), version(module),
  51         burst(module), endburst(module)
  52 {
  53 }
  54
  55 void ModuleSpanningTree::init()
  56 {
  57         ServerInstance->SNO->EnableSnomask('l', "LINK");
  58
  59         Utils = new SpanningTreeUtilities(this);
  60         Utils->TreeRoot = new TreeServer;
  61         commands = new SpanningTreeCommands(this);
  62         ServerInstance->Modules->AddService(commands->rconnect);
  63         ServerInstance->Modules->AddService(commands->rsquit);
  64         ServerInstance->Modules->AddService(commands->map);
  65
  66         delete ServerInstance->PI;
  67         ServerInstance->PI = new SpanningTreeProtocolInterface(Utils);
  68         loopCall = false;
  69
  70         // update our local user count
  71         Utils->TreeRoot->UserCount = ServerInstance->Users->local_users.size();
  72 }
  73
  74 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
  75 {
  76         std::string Parent = Utils->TreeRoot->GetName();
  77         if (Current->GetParent())
  78         {
  79                 Parent = Current->GetParent()->GetName();
  80         }
  81         for (unsigned int q = 0; q < Current->ChildCount(); q++)
  82         {
  83                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName()))))
  84                 {
  85                         if (user->IsOper())
  86                         {
  87                                  ShowLinks(Current->GetChild(q),user,hops+1);
  88                         }
  89                 }
  90                 else
  91                 {
  92                         ShowLinks(Current->GetChild(q),user,hops+1);
  93                 }
  94         }
  95         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
  96         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName())) && (!user->IsOper()))
  97                 return;
  98         /* Or if the server is hidden and they're not an oper */
  99         else if ((Current->Hidden) && (!user->IsOper()))
 100                 return;
 101
 102         user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick.c_str(), Current->GetName().c_str(),
 103                         (Utils->FlatLinks && (!user->IsOper())) ? ServerInstance->Config->ServerName.c_str() : Parent.c_str(),
 104                         (Utils->FlatLinks && (!user->IsOper())) ? 0 : hops,
 105                         Current->GetDesc().c_str());
 106 }
 107
 108 void ModuleSpanningTree::HandleLinks(const std::vector<std::string>& parameters, User* user)
 109 {
 110         ShowLinks(Utils->TreeRoot,user,0);
 111         user->WriteNumeric(365, "%s * :End of /LINKS list.",user->nick.c_str());
 112 }
 113
 114 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 115 {
 116         time_t mins_up = secs / 60;
 117         time_t hours_up = mins_up / 60;
 118         time_t days_up = hours_up / 24;
 119         secs = secs % 60;
 120         mins_up = mins_up % 60;
 121         hours_up = hours_up % 24;
 122         return ((days_up ? (ConvToStr(days_up) + "d") : "")
 123                         + (hours_up ? (ConvToStr(hours_up) + "h") : "")
 124                         + (mins_up ? (ConvToStr(mins_up) + "m") : "")
 125                         + ConvToStr(secs) + "s");
 126 }
 127
 128 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 129 {
 130         /*
 131          * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 132          * This prevents lost REMOTECONNECT notices
 133          */
 134         long ts = ServerInstance->Time() * 1000 + (ServerInstance->Time_ns() / 1000000);
 135
 136 restart:
 137         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 138         {
 139                 TreeServer *s = i->second;
 140
 141                 if (s->GetSocket() && s->GetSocket()->GetLinkState() == DYING)
 142                 {
 143                         s->GetSocket()->Close();
 144                         goto restart;
 145                 }
 146
 147                 // Fix for bug #792, do not ping servers that are not connected yet!
 148                 // Remote servers have Socket == NULL and local connected servers have
 149                 // Socket->LinkState == CONNECTED
 150                 if (s->GetSocket() && s->GetSocket()->GetLinkState() != CONNECTED)
 151                         continue;
 152
 153                 // Now do PING checks on all servers
 154                 TreeServer *mts = Utils->BestRouteTo(s->GetID());
 155
 156                 if (mts)
 157                 {
 158                         // Only ping if this server needs one
 159                         if (curtime >= s->NextPingTime())
 160                         {
 161                                 // And if they answered the last
 162                                 if (s->AnsweredLastPing())
 163                                 {
 164                                         // They did, send a ping to them
 165                                         s->SetNextPingTime(curtime + Utils->PingFreq);
 166                                         TreeSocket *tsock = mts->GetSocket();
 167
 168                                         // ... if we can find a proper route to them
 169                                         if (tsock)
 170                                         {
 171                                                 tsock->WriteLine(":" + ServerInstance->Config->GetSID() + " PING " + s->GetID());
 172                                                 s->LastPingMsec = ts;
 173                                         }
 174                                 }
 175                                 else
 176                                 {
 177                                         // They didn't answer the last ping, if they are locally connected, get rid of them.
 178                                         TreeSocket *sock = s->GetSocket();
 179                                         if (sock)
 180                                         {
 181                                                 sock->SendError("Ping timeout");
 182                                                 sock->Close();
 183                                                 goto restart;
 184                                         }
 185                                 }
 186                         }
 187
 188                         // If warn on ping enabled and not warned and the difference is sufficient and they didn't answer the last ping...
 189                         if ((Utils->PingWarnTime) && (!s->Warned) && (curtime >= s->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!s->AnsweredLastPing()))
 190                         {
 191                                 /* The server hasnt responded, send a warning to opers */
 192                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", s->GetName().c_str(), Utils->PingWarnTime);
 193                                 s->Warned = true;
 194                         }
 195                 }
 196         }
 197 }
 198
 199 void ModuleSpanningTree::ConnectServer(Autoconnect* a, bool on_timer)
 200 {
 201         if (!a)
 202                 return;
 203         for(unsigned int j=0; j < a->servers.size(); j++)
 204         {
 205                 if (Utils->FindServer(a->servers[j]))
 206                 {
 207                         // found something in this block. Should the server fail,
 208                         // we want to start at the start of the list, not in the
 209                         // middle where we left off
 210                         a->position = -1;
 211                         return;
 212                 }
 213         }
 214         if (on_timer && a->position >= 0)
 215                 return;
 216         if (!on_timer && a->position < 0)
 217                 return;
 218
 219         a->position++;
 220         while (a->position < (int)a->servers.size())
 221         {
 222                 Link* x = Utils->FindLink(a->servers[a->position]);
 223                 if (x)
 224                 {
 225                         ServerInstance->SNO->WriteToSnoMask('l', "AUTOCONNECT: Auto-connecting server \002%s\002", x->Name.c_str());
 226                         ConnectServer(x, a);
 227                         return;
 228                 }
 229                 a->position++;
 230         }
 231         // Autoconnect chain has been fully iterated; start at the beginning on the
 232         // next AutoConnectServers run
 233         a->position = -1;
 234 }
 235
 236 void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
 237 {
 238         bool ipvalid = true;
 239
 240         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 241         {
 242                 ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
 243                 return;
 244         }
 245
 246         DNS::QueryType start_type = DNS::QUERY_AAAA;
 247         if (strchr(x->IPAddr.c_str(),':'))
 248         {
 249                 in6_addr n;
 250                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 251                         ipvalid = false;
 252         }
 253         else
 254         {
 255                 in_addr n;
 256                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 257                         ipvalid = false;
 258         }
 259
 260         /* Do we already have an IP? If so, no need to resolve it. */
 261         if (ipvalid)
 262         {
 263                 /* Gave a hook, but it wasnt one we know */
 264                 TreeSocket* newsocket = new TreeSocket(x, y, x->IPAddr);
 265                 if (newsocket->GetFd() > -1)
 266                 {
 267                         /* Handled automatically on success */
 268                 }
 269                 else
 270                 {
 271                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",
 272                                 x->Name.c_str(), newsocket->getError().c_str());
 273                         ServerInstance->GlobalCulls.AddItem(newsocket);
 274                 }
 275         }
 276         else if (!DNS)
 277         {
 278                 ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: Hostname given and m_dns.so is not loaded, unable to resolve.", x->Name.c_str());
 279         }
 280         else
 281         {
 282                 ServernameResolver* snr = new ServernameResolver(*DNS, x->IPAddr, x, start_type, y);
 283                 try
 284                 {
 285                         DNS->Process(snr);
 286                 }
 287                 catch (DNS::Exception& e)
 288                 {
 289                         delete snr;
 290                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 291                         ConnectServer(y, false);
 292                 }
 293         }
 294 }
 295
 296 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 297 {
 298         for (std::vector<reference<Autoconnect> >::iterator i = Utils->AutoconnectBlocks.begin(); i < Utils->AutoconnectBlocks.end(); ++i)
 299         {
 300                 Autoconnect* x = *i;
 301                 if (curtime >= x->NextConnectTime)
 302                 {
 303                         x->NextConnectTime = curtime + x->Period;
 304                         ConnectServer(x, true);
 305                 }
 306         }
 307 }
 308
 309 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 310 {
 311         std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin();
 312         while (i != Utils->timeoutlist.end())
 313         {
 314                 TreeSocket* s = i->first;
 315                 std::pair<std::string, int> p = i->second;
 316                 std::map<TreeSocket*, std::pair<std::string, int> >::iterator me = i;
 317                 i++;
 318                 if (s->GetLinkState() == DYING)
 319                 {
 320                         Utils->timeoutlist.erase(me);
 321                         s->Close();
 322                 }
 323                 else if (curtime > s->age + p.second)
 324                 {
 325                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 326                         Utils->timeoutlist.erase(me);
 327                         s->Close();
 328                 }
 329         }
 330 }
 331
 332 ModResult ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 333 {
 334         // we've already checked if pcnt > 0, so this is safe
 335         TreeServer* found = Utils->FindServerMask(parameters[0]);
 336         if (found)
 337         {
 338                 if (found == Utils->TreeRoot)
 339                 {
 340                         // Pass to default VERSION handler.
 341                         return MOD_RES_PASSTHRU;
 342                 }
 343                 std::string Version = found->GetVersion();
 344                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 345         }
 346         else
 347         {
 348                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 349         }
 350         return MOD_RES_DENY;
 351 }
 352
 353 /* This method will attempt to get a message to a remote user.
 354  */
 355 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 356 {
 357         std::string text;
 358         VAFORMAT(text, format, format);
 359
 360         if (IS_LOCAL(user))
 361                 user->WriteNotice(text);
 362         else
 363                 ServerInstance->PI->SendUserNotice(user, text);
 364 }
 365
 366 ModResult ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 367 {
 368         for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i < Utils->LinkBlocks.end(); i++)
 369         {
 370                 Link* x = *i;
 371                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 372                 {
 373                         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 374                         {
 375                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
 376                                 return MOD_RES_DENY;
 377                         }
 378
 379                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 380                         if (!CheckDupe)
 381                         {
 382                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 383                                 ConnectServer(x);
 384                                 return MOD_RES_DENY;
 385                         }
 386                         else
 387                         {
 388                                 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());
 389                                 return MOD_RES_DENY;
 390                         }
 391                 }
 392         }
 393         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 394         return MOD_RES_DENY;
 395 }
 396
 397 void ModuleSpanningTree::On005Numeric(std::map<std::string, std::string>& tokens)
 398 {
 399         tokens["MAP"];
 400 }
 401
 402 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 403 {
 404         TreeServer* s = Utils->FindServer(servername);
 405         if (s)
 406         {
 407                 description = s->GetDesc();
 408         }
 409 }
 410
 411 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 412 {
 413         if (IS_LOCAL(source))
 414         {
 415                 parameterlist params;
 416                 params.push_back(dest->uuid);
 417                 params.push_back(channel->name);
 418                 params.push_back(ConvToStr(expiry));
 419                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 420         }
 421 }
 422
 423 void ModuleSpanningTree::OnPostTopicChange(User* user, Channel* chan, const std::string &topic)
 424 {
 425         // Drop remote events on the floor.
 426         if (!IS_LOCAL(user))
 427                 return;
 428
 429         parameterlist params;
 430         params.push_back(chan->name);
 431         params.push_back(":"+topic);
 432         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 433 }
 434
 435 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string& text, char status, const CUList& exempt_list, MessageType msgtype)
 436 {
 437         if (!IS_LOCAL(user))
 438                 return;
 439
 440         const char* message_type = (msgtype == MSG_PRIVMSG ? "PRIVMSG" : "NOTICE");
 441         if (target_type == TYPE_USER)
 442         {
 443                 User* d = (User*) dest;
 444                 if (!IS_LOCAL(d))
 445                 {
 446                         parameterlist params;
 447                         params.push_back(d->uuid);
 448                         params.push_back(":"+text);
 449                         Utils->DoOneToOne(user->uuid, message_type, params, d->server);
 450                 }
 451         }
 452         else if (target_type == TYPE_CHANNEL)
 453         {
 454                 Utils->SendChannelMessage(user->uuid, (Channel*)dest, text, status, exempt_list, message_type);
 455         }
 456         else if (target_type == TYPE_SERVER)
 457         {
 458                 char* target = (char*) dest;
 459                 parameterlist par;
 460                 par.push_back(target);
 461                 par.push_back(":"+text);
 462                 Utils->DoOneToMany(user->uuid, message_type, par);
 463         }
 464 }
 465
 466 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 467 {
 468         AutoConnectServers(curtime);
 469         DoPingChecks(curtime);
 470         DoConnectTimeout(curtime);
 471 }
 472
 473 void ModuleSpanningTree::OnUserConnect(LocalUser* user)
 474 {
 475         if (user->quitting)
 476                 return;
 477
 478         parameterlist params;
 479         params.push_back(user->uuid);
 480         params.push_back(ConvToStr(user->age));
 481         params.push_back(user->nick);
 482         params.push_back(user->host);
 483         params.push_back(user->dhost);
 484         params.push_back(user->ident);
 485         params.push_back(user->GetIPString());
 486         params.push_back(ConvToStr(user->signon));
 487         params.push_back("+"+std::string(user->FormatModes(true)));
 488         params.push_back(":"+user->fullname);
 489         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 490
 491         if (user->IsOper())
 492         {
 493                 params.clear();
 494                 params.push_back(":");
 495                 params[0].append(user->oper->name);
 496                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 497         }
 498
 499         for(Extensible::ExtensibleStore::const_iterator i = user->GetExtList().begin(); i != user->GetExtList().end(); i++)
 500         {
 501                 ExtensionItem* item = i->first;
 502                 std::string value = item->serialize(FORMAT_NETWORK, user, i->second);
 503                 if (!value.empty())
 504                         ServerInstance->PI->SendMetaData(user, item->name, value);
 505         }
 506
 507         Utils->TreeRoot->UserCount++;
 508 }
 509
 510 void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created_by_local, CUList& excepts)
 511 {
 512         // Only do this for local users
 513         if (IS_LOCAL(memb->user))
 514         {
 515                 parameterlist params;
 516                 params.push_back(memb->chan->name);
 517                 if (created_by_local)
 518                 {
 519                         params.push_back(ConvToStr(memb->chan->age));
 520                         params.push_back(std::string("+") + memb->chan->ChanModes(true));
 521                         params.push_back(memb->modes+","+memb->user->uuid);
 522                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 523                 }
 524                 else
 525                 {
 526                         if (!memb->modes.empty())
 527                         {
 528                                 params.push_back(ConvToStr(memb->chan->age));
 529                                 params.push_back(memb->modes);
 530                         }
 531                         Utils->DoOneToMany(memb->user->uuid, "IJOIN", params);
 532                 }
 533         }
 534 }
 535
 536 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 537 {
 538         if (user->registered != REG_ALL || !IS_LOCAL(user))
 539                 return;
 540
 541         parameterlist params;
 542         params.push_back(newhost);
 543         Utils->DoOneToMany(user->uuid,"FHOST",params);
 544 }
 545
 546 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 547 {
 548         if (user->registered != REG_ALL || !IS_LOCAL(user))
 549                 return;
 550
 551         parameterlist params;
 552         params.push_back(gecos);
 553         Utils->DoOneToMany(user->uuid,"FNAME",params);
 554 }
 555
 556 void ModuleSpanningTree::OnChangeIdent(User* user, const std::string &ident)
 557 {
 558         if ((user->registered != REG_ALL) || (!IS_LOCAL(user)))
 559                 return;
 560
 561         parameterlist params;
 562         params.push_back(ident);
 563         Utils->DoOneToMany(user->uuid,"FIDENT",params);
 564 }
 565
 566 void ModuleSpanningTree::OnUserPart(Membership* memb, std::string &partmessage, CUList& excepts)
 567 {
 568         if (IS_LOCAL(memb->user))
 569         {
 570                 parameterlist params;
 571                 params.push_back(memb->chan->name);
 572                 if (!partmessage.empty())
 573                         params.push_back(":"+partmessage);
 574                 Utils->DoOneToMany(memb->user->uuid,"PART",params);
 575         }
 576 }
 577
 578 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 579 {
 580         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 581         {
 582                 parameterlist params;
 583
 584                 if (oper_message != reason)
 585                         ServerInstance->PI->SendMetaData(user, "operquit", oper_message);
 586
 587                 params.push_back(":"+reason);
 588                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 589         }
 590
 591         // Regardless, We need to modify the user Counts..
 592         TreeServer* SourceServer = Utils->FindServer(user->server);
 593         if (SourceServer)
 594         {
 595                 SourceServer->UserCount--;
 596         }
 597 }
 598
 599 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 600 {
 601         if (IS_LOCAL(user))
 602         {
 603                 parameterlist params;
 604                 params.push_back(user->nick);
 605
 606                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 607                  */
 608                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 609                         user->age = ServerInstance->Time();
 610
 611                 params.push_back(ConvToStr(user->age));
 612                 Utils->DoOneToMany(user->uuid,"NICK",params);
 613         }
 614         else if (!loopCall && user->nick == user->uuid)
 615         {
 616                 parameterlist params;
 617                 params.push_back(user->uuid);
 618                 params.push_back(ConvToStr(user->age));
 619                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SAVE",params);
 620         }
 621 }
 622
 623 void ModuleSpanningTree::OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts)
 624 {
 625         parameterlist params;
 626         params.push_back(memb->chan->name);
 627         params.push_back(memb->user->uuid);
 628         params.push_back(":"+reason);
 629         if (IS_LOCAL(source))
 630         {
 631                 Utils->DoOneToMany(source->uuid,"KICK",params);
 632         }
 633         else if (source == ServerInstance->FakeClient)
 634         {
 635                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 636         }
 637 }
 638
 639 void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 640 {
 641         if (loopCall)
 642                 return; // Don't generate a REHASH here if we're in the middle of processing a message that generated this one
 643
 644         ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "OnPreRehash called with param %s", parameter.c_str());
 645
 646         // Send out to other servers
 647         if (!parameter.empty() && parameter[0] != '-')
 648         {
 649                 parameterlist params;
 650                 params.push_back(parameter);
 651                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 652         }
 653 }
 654
 655 void ModuleSpanningTree::OnRehash(User* user)
 656 {
 657         // Re-read config stuff
 658         try
 659         {
 660                 Utils->ReadConfiguration();
 661         }
 662         catch (ModuleException& e)
 663         {
 664                 // Refresh the IP cache anyway, so servers read before the error will be allowed to connect
 665                 Utils->RefreshIPCache();
 666                 // Always warn local opers with snomask +l, also warn globally (snomask +L) if the rehash was issued by a remote user
 667                 std::string msg = "Error in configuration: ";
 668                 msg.append(e.GetReason());
 669                 ServerInstance->SNO->WriteToSnoMask('l', msg);
 670                 if (user && !IS_LOCAL(user))
 671                         ServerInstance->PI->SendSNONotice("L", msg);
 672         }
 673 }
 674
 675 void ModuleSpanningTree::OnLoadModule(Module* mod)
 676 {
 677         std::string data;
 678         data.push_back('+');
 679         data.append(mod->ModuleSourceFile);
 680         Version v = mod->GetVersion();
 681         if (!v.link_data.empty())
 682         {
 683                 data.push_back('=');
 684                 data.append(v.link_data);
 685         }
 686         ServerInstance->PI->SendMetaData(NULL, "modules", data);
 687 }
 688
 689 void ModuleSpanningTree::OnUnloadModule(Module* mod)
 690 {
 691         ServerInstance->PI->SendMetaData(NULL, "modules", "-" + mod->ModuleSourceFile);
 692
 693         unsigned int items = Utils->TreeRoot->ChildCount();
 694         for(unsigned int x = 0; x < items; x++)
 695         {
 696                 TreeServer* srv = Utils->TreeRoot->GetChild(x);
 697                 TreeSocket* sock = srv->GetSocket();
 698                 if (sock && sock->GetIOHook() && sock->GetIOHook()->creator == mod)
 699                 {
 700                         sock->SendError("SSL module unloaded");
 701                         sock->Close();
 702                 }
 703         }
 704 }
 705
 706 // note: the protocol does not allow direct umode +o except
 707 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 708 // locally.
 709 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 710 {
 711         if (user->registered != REG_ALL || !IS_LOCAL(user))
 712                 return;
 713         parameterlist params;
 714         params.push_back(":");
 715         params[0].append(opertype);
 716         Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 717 }
 718
 719 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 720 {
 721         if (!x->IsBurstable() || loopCall)
 722                 return;
 723
 724         parameterlist params;
 725         params.push_back(x->type);
 726         params.push_back(x->Displayable());
 727         params.push_back(ServerInstance->Config->ServerName);
 728         params.push_back(ConvToStr(x->set_time));
 729         params.push_back(ConvToStr(x->duration));
 730         params.push_back(":" + x->reason);
 731
 732         if (!user)
 733         {
 734                 /* Server-set lines */
 735                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 736         }
 737         else if (IS_LOCAL(user))
 738         {
 739                 /* User-set lines */
 740                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 741         }
 742 }
 743
 744 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 745 {
 746         if (!x->IsBurstable() || loopCall)
 747                 return;
 748
 749         parameterlist params;
 750         params.push_back(x->type);
 751         params.push_back(x->Displayable());
 752
 753         if (!user)
 754         {
 755                 /* Server-unset lines */
 756                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 757         }
 758         else if (IS_LOCAL(user))
 759         {
 760                 /* User-unset lines */
 761                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 762         }
 763 }
 764
 765 ModResult ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 766 {
 767         if (IS_LOCAL(user))
 768         {
 769                 parameterlist params;
 770                 if (!awaymsg.empty())
 771                 {
 772                         params.push_back(ConvToStr(user->awaytime));
 773                         params.push_back(":" + awaymsg);
 774                 }
 775                 Utils->DoOneToMany(user->uuid, "AWAY", params);
 776         }
 777
 778         return MOD_RES_PASSTHRU;
 779 }
 780
 781 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const parameterlist &modeline, const std::vector<TranslateType> &translate)
 782 {
 783         TreeSocket* s = (TreeSocket*)opaque;
 784         std::string output_text = CommandParser::TranslateUIDs(translate, modeline);
 785
 786         if (target)
 787         {
 788                 if (target_type == TYPE_USER)
 789                 {
 790                         User* u = (User*)target;
 791                         s->WriteLine(":"+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 792                 }
 793                 else if (target_type == TYPE_CHANNEL)
 794                 {
 795                         Channel* c = (Channel*)target;
 796                         s->WriteLine(":"+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 797                 }
 798         }
 799 }
 800
 801 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, Extensible* target, const std::string &extname, const std::string &extdata)
 802 {
 803         TreeSocket* s = static_cast<TreeSocket*>(opaque);
 804         User* u = dynamic_cast<User*>(target);
 805         Channel* c = dynamic_cast<Channel*>(target);
 806         if (u)
 807                 s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 808         else if (c)
 809                 s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+ConvToStr(c->age)+" "+extname+" :"+extdata);
 810         else if (!target)
 811                 s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 812 }
 813
 814 CullResult ModuleSpanningTree::cull()
 815 {
 816         if (Utils)
 817                 Utils->cull();
 818         return this->Module::cull();
 819 }
 820
 821 ModuleSpanningTree::~ModuleSpanningTree()
 822 {
 823         delete ServerInstance->PI;
 824         ServerInstance->PI = new ProtocolInterface;
 825
 826         /* This will also free the listeners */
 827         delete Utils;
 828
 829         delete commands;
 830 }
 831
 832 Version ModuleSpanningTree::GetVersion()
 833 {
 834         return Version("Allows servers to be linked", VF_VENDOR);
 835 }
 836
 837 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 838  * so that any activity it sees is FINAL, e.g. we arent going to send out
 839  * a NICK message before m_cloaking has finished putting the +x on the user,
 840  * etc etc.
 841  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 842  * the module call queue.
 843  */
 844 void ModuleSpanningTree::Prioritize()
 845 {
 846         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 847 }
 848
 849 MODULE_INIT(ModuleSpanningTree)