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