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), fmode(module), ftopic(module),
  51         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->fmode);
  67         ServerInstance->Modules->AddService(commands->ftopic);
  68         ServerInstance->Modules->AddService(commands->fhost);
  69         ServerInstance->Modules->AddService(commands->fident);
  70         ServerInstance->Modules->AddService(commands->fname);
  71         RefreshTimer = new CacheRefreshTimer(Utils);
  72         ServerInstance->Timers->AddTimer(RefreshTimer);
  73
  74         Implementation eventlist[] =
  75         {
  76                 I_OnPreCommand, I_OnGetServerDescription, I_OnUserInvite, I_OnPostTopicChange,
  77                 I_OnWallops, I_OnUserNotice, I_OnUserMessage, I_OnBackgroundTimer, I_OnUserJoin,
  78                 I_OnChangeHost, I_OnChangeName, I_OnChangeIdent, I_OnUserPart, I_OnUnloadModule,
  79                 I_OnUserQuit, I_OnUserPostNick, I_OnUserKick, I_OnRemoteKill, I_OnRehash, I_OnPreRehash,
  80                 I_OnOper, I_OnAddLine, I_OnDelLine, I_OnMode, I_OnLoadModule, I_OnStats,
  81                 I_OnSetAway, I_OnPostCommand, I_OnUserConnect, I_OnAcceptConnection
  82         };
  83         ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
  84
  85         delete ServerInstance->PI;
  86         ServerInstance->PI = new SpanningTreeProtocolInterface(Utils);
  87         loopCall = false;
  88
  89         // update our local user count
  90         Utils->TreeRoot->SetUserCount(ServerInstance->Users->local_users.size());
  91 }
  92
  93 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
  94 {
  95         std::string Parent = Utils->TreeRoot->GetName();
  96         if (Current->GetParent())
  97         {
  98                 Parent = Current->GetParent()->GetName();
  99         }
 100         for (unsigned int q = 0; q < Current->ChildCount(); q++)
 101         {
 102                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName()))))
 103                 {
 104                         if (user->IsOper())
 105                         {
 106                                  ShowLinks(Current->GetChild(q),user,hops+1);
 107                         }
 108                 }
 109                 else
 110                 {
 111                         ShowLinks(Current->GetChild(q),user,hops+1);
 112                 }
 113         }
 114         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
 115         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName())) && (!user->IsOper()))
 116                 return;
 117         /* Or if the server is hidden and they're not an oper */
 118         else if ((Current->Hidden) && (!user->IsOper()))
 119                 return;
 120
 121         std::string servername = Current->GetName();
 122         user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick.c_str(), servername.c_str(),
 123                         (Utils->FlatLinks && (!user->IsOper())) ? ServerInstance->Config->ServerName.c_str() : Parent.c_str(),
 124                         (Utils->FlatLinks && (!user->IsOper())) ? 0 : hops,
 125                         Current->GetDesc().c_str());
 126 }
 127
 128 int ModuleSpanningTree::CountServs()
 129 {
 130         return Utils->serverlist.size();
 131 }
 132
 133 void ModuleSpanningTree::HandleLinks(const std::vector<std::string>& parameters, User* user)
 134 {
 135         ShowLinks(Utils->TreeRoot,user,0);
 136         user->WriteNumeric(365, "%s * :End of /LINKS list.",user->nick.c_str());
 137         return;
 138 }
 139
 140 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 141 {
 142         time_t mins_up = secs / 60;
 143         time_t hours_up = mins_up / 60;
 144         time_t days_up = hours_up / 24;
 145         secs = secs % 60;
 146         mins_up = mins_up % 60;
 147         hours_up = hours_up % 24;
 148         return ((days_up ? (ConvToStr(days_up) + "d") : "")
 149                         + (hours_up ? (ConvToStr(hours_up) + "h") : "")
 150                         + (mins_up ? (ConvToStr(mins_up) + "m") : "")
 151                         + ConvToStr(secs) + "s");
 152 }
 153
 154 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 155 {
 156         /*
 157          * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 158          * This prevents lost REMOTECONNECT notices
 159          */
 160         long ts = ServerInstance->Time() * 1000 + (ServerInstance->Time_ns() / 1000000);
 161
 162 restart:
 163         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 164         {
 165                 TreeServer *s = i->second;
 166
 167                 if (s->GetSocket() && s->GetSocket()->GetLinkState() == DYING)
 168                 {
 169                         s->GetSocket()->Close();
 170                         goto restart;
 171                 }
 172
 173                 // Fix for bug #792, do not ping servers that are not connected yet!
 174                 // Remote servers have Socket == NULL and local connected servers have
 175                 // Socket->LinkState == CONNECTED
 176                 if (s->GetSocket() && s->GetSocket()->GetLinkState() != CONNECTED)
 177                         continue;
 178
 179                 // Now do PING checks on all servers
 180                 TreeServer *mts = Utils->BestRouteTo(s->GetID());
 181
 182                 if (mts)
 183                 {
 184                         // Only ping if this server needs one
 185                         if (curtime >= s->NextPingTime())
 186                         {
 187                                 // And if they answered the last
 188                                 if (s->AnsweredLastPing())
 189                                 {
 190                                         // They did, send a ping to them
 191                                         s->SetNextPingTime(curtime + Utils->PingFreq);
 192                                         TreeSocket *tsock = mts->GetSocket();
 193
 194                                         // ... if we can find a proper route to them
 195                                         if (tsock)
 196                                         {
 197                                                 tsock->WriteLine(":" + ServerInstance->Config->GetSID() + " PING " +
 198                                                                 ServerInstance->Config->GetSID() + " " + s->GetID());
 199                                                 s->LastPingMsec = ts;
 200                                         }
 201                                 }
 202                                 else
 203                                 {
 204                                         // They didn't answer the last ping, if they are locally connected, get rid of them.
 205                                         TreeSocket *sock = s->GetSocket();
 206                                         if (sock)
 207                                         {
 208                                                 sock->SendError("Ping timeout");
 209                                                 sock->Close();
 210                                                 goto restart;
 211                                         }
 212                                 }
 213                         }
 214
 215                         // If warn on ping enabled and not warned and the difference is sufficient and they didn't answer the last ping...
 216                         if ((Utils->PingWarnTime) && (!s->Warned) && (curtime >= s->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!s->AnsweredLastPing()))
 217                         {
 218                                 /* The server hasnt responded, send a warning to opers */
 219                                 std::string servername = s->GetName();
 220                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", servername.c_str(), Utils->PingWarnTime);
 221                                 s->Warned = true;
 222                         }
 223                 }
 224         }
 225 }
 226
 227 void ModuleSpanningTree::ConnectServer(Autoconnect* a, bool on_timer)
 228 {
 229         if (!a)
 230                 return;
 231         for(unsigned int j=0; j < a->servers.size(); j++)
 232         {
 233                 if (Utils->FindServer(a->servers[j]))
 234                 {
 235                         // found something in this block. Should the server fail,
 236                         // we want to start at the start of the list, not in the
 237                         // middle where we left off
 238                         a->position = -1;
 239                         return;
 240                 }
 241         }
 242         if (on_timer && a->position >= 0)
 243                 return;
 244         if (!on_timer && a->position < 0)
 245                 return;
 246
 247         a->position++;
 248         while (a->position < (int)a->servers.size())
 249         {
 250                 Link* x = Utils->FindLink(a->servers[a->position]);
 251                 if (x)
 252                 {
 253                         ServerInstance->SNO->WriteToSnoMask('l', "AUTOCONNECT: Auto-connecting server \002%s\002", x->Name.c_str());
 254                         ConnectServer(x, a);
 255                         return;
 256                 }
 257                 a->position++;
 258         }
 259         // Autoconnect chain has been fully iterated; start at the beginning on the
 260         // next AutoConnectServers run
 261         a->position = -1;
 262 }
 263
 264 void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
 265 {
 266         bool ipvalid = true;
 267
 268         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 269         {
 270                 ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
 271                 return;
 272         }
 273
 274         QueryType start_type = DNS_QUERY_A;
 275         start_type = DNS_QUERY_AAAA;
 276         if (strchr(x->IPAddr.c_str(),':'))
 277         {
 278                 in6_addr n;
 279                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 280                         ipvalid = false;
 281         }
 282         else
 283         {
 284                 in_addr n;
 285                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 286                         ipvalid = false;
 287         }
 288
 289         /* Do we already have an IP? If so, no need to resolve it. */
 290         if (ipvalid)
 291         {
 292                 /* Gave a hook, but it wasnt one we know */
 293                 TreeSocket* newsocket = new TreeSocket(Utils, x, y, x->IPAddr);
 294                 if (newsocket->GetFd() > -1)
 295                 {
 296                         /* Handled automatically on success */
 297                 }
 298                 else
 299                 {
 300                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",
 301                                 x->Name.c_str(), newsocket->getError().c_str());
 302                         ServerInstance->GlobalCulls.AddItem(newsocket);
 303                 }
 304         }
 305         else
 306         {
 307                 try
 308                 {
 309                         bool cached = false;
 310                         ServernameResolver* snr = new ServernameResolver(Utils, x->IPAddr, x, cached, start_type, y);
 311                         ServerInstance->AddResolver(snr, cached);
 312                 }
 313                 catch (ModuleException& e)
 314                 {
 315                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 316                         ConnectServer(y, false);
 317                 }
 318         }
 319 }
 320
 321 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 322 {
 323         for (std::vector<reference<Autoconnect> >::iterator i = Utils->AutoconnectBlocks.begin(); i < Utils->AutoconnectBlocks.end(); ++i)
 324         {
 325                 Autoconnect* x = *i;
 326                 if (curtime >= x->NextConnectTime)
 327                 {
 328                         x->NextConnectTime = curtime + x->Period;
 329                         ConnectServer(x, true);
 330                 }
 331         }
 332 }
 333
 334 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 335 {
 336         std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin();
 337         while (i != Utils->timeoutlist.end())
 338         {
 339                 TreeSocket* s = i->first;
 340                 std::pair<std::string, int> p = i->second;
 341                 std::map<TreeSocket*, std::pair<std::string, int> >::iterator me = i;
 342                 i++;
 343                 if (s->GetLinkState() == DYING)
 344                 {
 345                         Utils->timeoutlist.erase(me);
 346                         s->Close();
 347                 }
 348                 else if (curtime > s->age + p.second)
 349                 {
 350                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 351                         Utils->timeoutlist.erase(me);
 352                         s->Close();
 353                 }
 354         }
 355 }
 356
 357 ModResult ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 358 {
 359         // we've already checked if pcnt > 0, so this is safe
 360         TreeServer* found = Utils->FindServerMask(parameters[0]);
 361         if (found)
 362         {
 363                 if (found == Utils->TreeRoot)
 364                 {
 365                         // Pass to default VERSION handler.
 366                         return MOD_RES_PASSTHRU;
 367                 }
 368                 std::string Version = found->GetVersion();
 369                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 370         }
 371         else
 372         {
 373                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 374         }
 375         return MOD_RES_DENY;
 376 }
 377
 378 /* This method will attempt to get a message to a remote user.
 379  */
 380 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 381 {
 382         char text[MAXBUF];
 383         va_list argsPtr;
 384
 385         va_start(argsPtr, format);
 386         vsnprintf(text, MAXBUF, format, argsPtr);
 387         va_end(argsPtr);
 388
 389         if (IS_LOCAL(user))
 390                 user->WriteServ("NOTICE %s :%s", user->nick.c_str(), text);
 391         else
 392                 ServerInstance->PI->SendUserNotice(user, text);
 393 }
 394
 395 ModResult ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 396 {
 397         for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i < Utils->LinkBlocks.end(); i++)
 398         {
 399                 Link* x = *i;
 400                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 401                 {
 402                         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 403                         {
 404                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
 405                                 return MOD_RES_DENY;
 406                         }
 407
 408                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 409                         if (!CheckDupe)
 410                         {
 411                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 412                                 ConnectServer(x);
 413                                 return MOD_RES_DENY;
 414                         }
 415                         else
 416                         {
 417                                 std::string servername = CheckDupe->GetParent()->GetName();
 418                                 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());
 419                                 return MOD_RES_DENY;
 420                         }
 421                 }
 422         }
 423         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 424         return MOD_RES_DENY;
 425 }
 426
 427 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 428 {
 429         TreeServer* s = Utils->FindServer(servername);
 430         if (s)
 431         {
 432                 description = s->GetDesc();
 433         }
 434 }
 435
 436 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 437 {
 438         if (IS_LOCAL(source))
 439         {
 440                 parameterlist params;
 441                 params.push_back(dest->uuid);
 442                 params.push_back(channel->name);
 443                 params.push_back(ConvToStr(expiry));
 444                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 445         }
 446 }
 447
 448 void ModuleSpanningTree::OnPostTopicChange(User* user, Channel* chan, const std::string &topic)
 449 {
 450         // Drop remote events on the floor.
 451         if (!IS_LOCAL(user))
 452                 return;
 453
 454         parameterlist params;
 455         params.push_back(chan->name);
 456         params.push_back(":"+topic);
 457         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 458 }
 459
 460 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 461 {
 462         if (IS_LOCAL(user))
 463         {
 464                 parameterlist params;
 465                 params.push_back(":"+text);
 466                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 467         }
 468 }
 469
 470 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 471 {
 472         /* Server origin */
 473         if (user == NULL)
 474                 return;
 475
 476         if (target_type == TYPE_USER)
 477         {
 478                 User* d = (User*)dest;
 479                 if (!IS_LOCAL(d) && IS_LOCAL(user))
 480                 {
 481                         parameterlist params;
 482                         params.push_back(d->uuid);
 483                         params.push_back(":"+text);
 484                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 485                 }
 486         }
 487         else if (target_type == TYPE_CHANNEL)
 488         {
 489                 if (IS_LOCAL(user))
 490                 {
 491                         Channel *c = (Channel*)dest;
 492                         if (c)
 493                         {
 494                                 std::string cname = c->name;
 495                                 if (status)
 496                                         cname = status + cname;
 497                                 TreeServerList list;
 498                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 499                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 500                                 {
 501                                         TreeSocket* Sock = i->second->GetSocket();
 502                                         if (Sock)
 503                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 504                                 }
 505                         }
 506                 }
 507         }
 508         else if (target_type == TYPE_SERVER)
 509         {
 510                 if (IS_LOCAL(user))
 511                 {
 512                         char* target = (char*)dest;
 513                         parameterlist par;
 514                         par.push_back(target);
 515                         par.push_back(":"+text);
 516                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 517                 }
 518         }
 519 }
 520
 521 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 522 {
 523         /* Server origin */
 524         if (user == NULL)
 525                 return;
 526
 527         if (target_type == TYPE_USER)
 528         {
 529                 // route private messages which are targetted at clients only to the server
 530                 // which needs to receive them
 531                 User* d = (User*)dest;
 532                 if (!IS_LOCAL(d) && (IS_LOCAL(user)))
 533                 {
 534                         parameterlist params;
 535                         params.push_back(d->uuid);
 536                         params.push_back(":"+text);
 537                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 538                 }
 539         }
 540         else if (target_type == TYPE_CHANNEL)
 541         {
 542                 if (IS_LOCAL(user))
 543                 {
 544                         Channel *c = (Channel*)dest;
 545                         if (c)
 546                         {
 547                                 std::string cname = c->name;
 548                                 if (status)
 549                                         cname = status + cname;
 550                                 TreeServerList list;
 551                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 552                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 553                                 {
 554                                         TreeSocket* Sock = i->second->GetSocket();
 555                                         if (Sock)
 556                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 557                                 }
 558                         }
 559                 }
 560         }
 561         else if (target_type == TYPE_SERVER)
 562         {
 563                 if (IS_LOCAL(user))
 564                 {
 565                         char* target = (char*)dest;
 566                         parameterlist par;
 567                         par.push_back(target);
 568                         par.push_back(":"+text);
 569                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 570                 }
 571         }
 572 }
 573
 574 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 575 {
 576         AutoConnectServers(curtime);
 577         DoPingChecks(curtime);
 578         DoConnectTimeout(curtime);
 579 }
 580
 581 void ModuleSpanningTree::OnUserConnect(LocalUser* user)
 582 {
 583         if (user->quitting)
 584                 return;
 585
 586         parameterlist params;
 587         params.push_back(user->uuid);
 588         params.push_back(ConvToStr(user->age));
 589         params.push_back(user->nick);
 590         params.push_back(user->host);
 591         params.push_back(user->dhost);
 592         params.push_back(user->ident);
 593         params.push_back(user->GetIPString());
 594         params.push_back(ConvToStr(user->signon));
 595         params.push_back("+"+std::string(user->FormatModes(true)));
 596         params.push_back(":"+user->fullname);
 597         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 598
 599         if (user->IsOper())
 600         {
 601                 params.clear();
 602                 params.push_back(user->oper->name);
 603                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 604         }
 605
 606         for(Extensible::ExtensibleStore::const_iterator i = user->GetExtList().begin(); i != user->GetExtList().end(); i++)
 607         {
 608                 ExtensionItem* item = i->first;
 609                 std::string value = item->serialize(FORMAT_NETWORK, user, i->second);
 610                 if (!value.empty())
 611                         ServerInstance->PI->SendMetaData(user, item->name, value);
 612         }
 613
 614         Utils->TreeRoot->SetUserCount(1); // increment by 1
 615 }
 616
 617 void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created, CUList& excepts)
 618 {
 619         // Only do this for local users
 620         if (IS_LOCAL(memb->user))
 621         {
 622                 parameterlist params;
 623                 // set up their permissions and the channel TS with FJOIN.
 624                 // All users are FJOINed now, because a module may specify
 625                 // new joining permissions for the user.
 626                 params.push_back(memb->chan->name);
 627                 params.push_back(ConvToStr(memb->chan->age));
 628                 params.push_back(std::string("+") + memb->chan->ChanModes(true));
 629                 params.push_back(memb->modes+","+memb->user->uuid);
 630                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 631         }
 632 }
 633
 634 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 635 {
 636         if (user->registered != REG_ALL || !IS_LOCAL(user))
 637                 return;
 638
 639         parameterlist params;
 640         params.push_back(newhost);
 641         Utils->DoOneToMany(user->uuid,"FHOST",params);
 642 }
 643
 644 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 645 {
 646         if (user->registered != REG_ALL || !IS_LOCAL(user))
 647                 return;
 648
 649         parameterlist params;
 650         params.push_back(gecos);
 651         Utils->DoOneToMany(user->uuid,"FNAME",params);
 652 }
 653
 654 void ModuleSpanningTree::OnChangeIdent(User* user, const std::string &ident)
 655 {
 656         // only occurs for local clients
 657         if (user->registered != REG_ALL)
 658                 return;
 659
 660         parameterlist params;
 661         params.push_back(ident);
 662         Utils->DoOneToMany(user->uuid,"FIDENT",params);
 663 }
 664
 665 void ModuleSpanningTree::OnUserPart(Membership* memb, std::string &partmessage, CUList& excepts)
 666 {
 667         if (IS_LOCAL(memb->user))
 668         {
 669                 parameterlist params;
 670                 params.push_back(memb->chan->name);
 671                 if (!partmessage.empty())
 672                         params.push_back(":"+partmessage);
 673                 Utils->DoOneToMany(memb->user->uuid,"PART",params);
 674         }
 675 }
 676
 677 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 678 {
 679         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 680         {
 681                 parameterlist params;
 682
 683                 if (oper_message != reason)
 684                 {
 685                         params.push_back(":"+oper_message);
 686                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 687                 }
 688                 params.clear();
 689                 params.push_back(":"+reason);
 690                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 691         }
 692
 693         // Regardless, We need to modify the user Counts..
 694         TreeServer* SourceServer = Utils->FindServer(user->server);
 695         if (SourceServer)
 696         {
 697                 SourceServer->SetUserCount(-1); // decrement by 1
 698         }
 699 }
 700
 701 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 702 {
 703         if (IS_LOCAL(user))
 704         {
 705                 parameterlist params;
 706                 params.push_back(user->nick);
 707
 708                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 709                  */
 710                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 711                         user->age = ServerInstance->Time();
 712
 713                 params.push_back(ConvToStr(user->age));
 714                 Utils->DoOneToMany(user->uuid,"NICK",params);
 715         }
 716         else if (!loopCall && user->nick == user->uuid)
 717         {
 718                 parameterlist params;
 719                 params.push_back(user->uuid);
 720                 params.push_back(ConvToStr(user->age));
 721                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SAVE",params);
 722         }
 723 }
 724
 725 void ModuleSpanningTree::OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts)
 726 {
 727         parameterlist params;
 728         params.push_back(memb->chan->name);
 729         params.push_back(memb->user->uuid);
 730         params.push_back(":"+reason);
 731         if (IS_LOCAL(source))
 732         {
 733                 Utils->DoOneToMany(source->uuid,"KICK",params);
 734         }
 735         else if (source == ServerInstance->FakeClient)
 736         {
 737                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 738         }
 739 }
 740
 741 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 742 {
 743         if (!IS_LOCAL(source))
 744                 return; // Only start routing if we're origin.
 745
 746         ServerInstance->OperQuit.set(dest, operreason);
 747         parameterlist params;
 748         params.push_back(":"+operreason);
 749         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 750         params.clear();
 751         params.push_back(dest->uuid);
 752         params.push_back(":"+reason);
 753         Utils->DoOneToMany(source->uuid,"KILL",params);
 754 }
 755
 756 void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 757 {
 758         if (loopCall)
 759                 return; // Don't generate a REHASH here if we're in the middle of processing a message that generated this one
 760
 761         ServerInstance->Logs->Log("remoterehash", DEBUG, "called with param %s", parameter.c_str());
 762
 763         // Send out to other servers
 764         if (!parameter.empty() && parameter[0] != '-')
 765         {
 766                 parameterlist params;
 767                 params.push_back(parameter);
 768                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 769         }
 770 }
 771
 772 void ModuleSpanningTree::OnRehash(User* user)
 773 {
 774         // Re-read config stuff
 775         try
 776         {
 777                 Utils->ReadConfiguration();
 778         }
 779         catch (ModuleException& e)
 780         {
 781                 // Refresh the IP cache anyway, so servers read before the error will be allowed to connect
 782                 Utils->RefreshIPCache();
 783                 // Always warn local opers with snomask +l, also warn globally (snomask +L) if the rehash was issued by a remote user
 784                 std::string msg = "Error in configuration: ";
 785                 msg.append(e.GetReason());
 786                 ServerInstance->SNO->WriteToSnoMask('l', msg);
 787                 if (!IS_LOCAL(user))
 788                         ServerInstance->PI->SendSNONotice("L", msg);
 789         }
 790 }
 791
 792 void ModuleSpanningTree::OnLoadModule(Module* mod)
 793 {
 794         std::string data;
 795         data.push_back('+');
 796         data.append(mod->ModuleSourceFile);
 797         Version v = mod->GetVersion();
 798         if (!v.link_data.empty())
 799         {
 800                 data.push_back('=');
 801                 data.append(v.link_data);
 802         }
 803         ServerInstance->PI->SendMetaData(NULL, "modules", data);
 804 }
 805
 806 void ModuleSpanningTree::OnUnloadModule(Module* mod)
 807 {
 808         ServerInstance->PI->SendMetaData(NULL, "modules", "-" + mod->ModuleSourceFile);
 809
 810         unsigned int items = Utils->TreeRoot->ChildCount();
 811         for(unsigned int x = 0; x < items; x++)
 812         {
 813                 TreeServer* srv = Utils->TreeRoot->GetChild(x);
 814                 TreeSocket* sock = srv->GetSocket();
 815                 if (sock && sock->GetIOHook() == mod)
 816                 {
 817                         sock->SendError("SSL module unloaded");
 818                         sock->Close();
 819                 }
 820         }
 821 }
 822
 823 // note: the protocol does not allow direct umode +o except
 824 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 825 // locally.
 826 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 827 {
 828         if (user->registered != REG_ALL || !IS_LOCAL(user))
 829                 return;
 830         parameterlist params;
 831         params.push_back(opertype);
 832         Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 833 }
 834
 835 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 836 {
 837         if (!x->IsBurstable() || loopCall)
 838                 return;
 839
 840         parameterlist params;
 841         params.push_back(x->type);
 842         params.push_back(x->Displayable());
 843         params.push_back(ServerInstance->Config->ServerName);
 844         params.push_back(ConvToStr(x->set_time));
 845         params.push_back(ConvToStr(x->duration));
 846         params.push_back(":" + x->reason);
 847
 848         if (!user)
 849         {
 850                 /* Server-set lines */
 851                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 852         }
 853         else if (IS_LOCAL(user))
 854         {
 855                 /* User-set lines */
 856                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 857         }
 858 }
 859
 860 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 861 {
 862         if (!x->IsBurstable() || loopCall)
 863                 return;
 864
 865         parameterlist params;
 866         params.push_back(x->type);
 867         params.push_back(x->Displayable());
 868
 869         if (!user)
 870         {
 871                 /* Server-unset lines */
 872                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 873         }
 874         else if (IS_LOCAL(user))
 875         {
 876                 /* User-unset lines */
 877                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 878         }
 879 }
 880
 881 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const parameterlist &text, const std::vector<TranslateType> &translate)
 882 {
 883         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 884         {
 885                 parameterlist params;
 886                 std::string output_text;
 887
 888                 ServerInstance->Parser->TranslateUIDs(translate, text, output_text);
 889
 890                 if (target_type == TYPE_USER)
 891                 {
 892                         User* u = (User*)dest;
 893                         params.push_back(u->uuid);
 894                         params.push_back(output_text);
 895                         Utils->DoOneToMany(user->uuid, "MODE", params);
 896                 }
 897                 else
 898                 {
 899                         Channel* c = (Channel*)dest;
 900                         params.push_back(c->name);
 901                         params.push_back(ConvToStr(c->age));
 902                         params.push_back(output_text);
 903                         Utils->DoOneToMany(user->uuid, "FMODE", params);
 904                 }
 905         }
 906 }
 907
 908 ModResult ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 909 {
 910         if (IS_LOCAL(user))
 911         {
 912                 parameterlist params;
 913                 if (!awaymsg.empty())
 914                 {
 915                         params.push_back(ConvToStr(user->awaytime));
 916                         params.push_back(":" + awaymsg);
 917                 }
 918                 Utils->DoOneToMany(user->uuid, "AWAY", params);
 919         }
 920
 921         return MOD_RES_PASSTHRU;
 922 }
 923
 924 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const parameterlist &modeline, const std::vector<TranslateType> &translate)
 925 {
 926         TreeSocket* s = (TreeSocket*)opaque;
 927         std::string output_text;
 928
 929         ServerInstance->Parser->TranslateUIDs(translate, modeline, output_text);
 930
 931         if (target)
 932         {
 933                 if (target_type == TYPE_USER)
 934                 {
 935                         User* u = (User*)target;
 936                         s->WriteLine(":"+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 937                 }
 938                 else if (target_type == TYPE_CHANNEL)
 939                 {
 940                         Channel* c = (Channel*)target;
 941                         s->WriteLine(":"+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 942                 }
 943         }
 944 }
 945
 946 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, Extensible* target, const std::string &extname, const std::string &extdata)
 947 {
 948         TreeSocket* s = static_cast<TreeSocket*>(opaque);
 949         User* u = dynamic_cast<User*>(target);
 950         Channel* c = dynamic_cast<Channel*>(target);
 951         if (u)
 952                 s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 953         else if (c)
 954                 s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 955         else if (!target)
 956                 s->WriteLine(":"+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 957 }
 958
 959 CullResult ModuleSpanningTree::cull()
 960 {
 961         Utils->cull();
 962         ServerInstance->Timers->DelTimer(RefreshTimer);
 963         return this->Module::cull();
 964 }
 965
 966 ModuleSpanningTree::~ModuleSpanningTree()
 967 {
 968         delete ServerInstance->PI;
 969         ServerInstance->PI = new ProtocolInterface;
 970
 971         /* This will also free the listeners */
 972         delete Utils;
 973
 974         delete commands;
 975 }
 976
 977 Version ModuleSpanningTree::GetVersion()
 978 {
 979         return Version("Allows servers to be linked", VF_VENDOR);
 980 }
 981
 982 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 983  * so that any activity it sees is FINAL, e.g. we arent going to send out
 984  * a NICK message before m_cloaking has finished putting the +x on the user,
 985  * etc etc.
 986  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 987  * the module call queue.
 988  */
 989 void ModuleSpanningTree::Prioritize()
 990 {
 991         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 992 }
 993
 994 MODULE_INIT(ModuleSpanningTree)