src/modules/m_spanningtree/main.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *          the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 /* $ModDesc: Provides a spanning tree server link protocol */
  15
  16 #include "inspircd.h"
  17 #include "commands/cmd_whois.h"
  18 #include "commands/cmd_stats.h"
  19 #include "socket.h"
  20 #include "wildcard.h"
  21 #include "xline.h"
  22 #include "transport.h"
  23
  24 #include "m_spanningtree/timesynctimer.h"
  25 #include "m_spanningtree/resolvers.h"
  26 #include "m_spanningtree/main.h"
  27 #include "m_spanningtree/utils.h"
  28 #include "m_spanningtree/treeserver.h"
  29 #include "m_spanningtree/link.h"
  30 #include "m_spanningtree/treesocket.h"
  31 #include "m_spanningtree/rconnect.h"
  32 #include "m_spanningtree/rsquit.h"
  33
  34 /* $ModDep: m_spanningtree/timesynctimer.h m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h m_spanningtree/rconnect.h m_spanningtree/rsquit.h */
  35
  36 ModuleSpanningTree::ModuleSpanningTree(InspIRCd* Me)
  37         : Module(Me), max_local(0), max_global(0)
  38 {
  39         ServerInstance->Modules->UseInterface("BufferedSocketHook");
  40         Utils = new SpanningTreeUtilities(Me, this);
  41         command_rconnect = new cmd_rconnect(ServerInstance, this, Utils);
  42         ServerInstance->AddCommand(command_rconnect);
  43         command_rsquit = new cmd_rsquit(ServerInstance, this, Utils);
  44         ServerInstance->AddCommand(command_rsquit);
  45         if (Utils->EnableTimeSync)
  46         {
  47                 SyncTimer = new TimeSyncTimer(ServerInstance, this);
  48                 ServerInstance->Timers->AddTimer(SyncTimer);
  49         }
  50         else
  51                 SyncTimer = NULL;
  52
  53         RefreshTimer = new CacheRefreshTimer(ServerInstance, Utils);
  54         ServerInstance->Timers->AddTimer(RefreshTimer);
  55
  56         Implementation eventlist[] =
  57         {
  58                 I_OnPreCommand, I_OnGetServerDescription, I_OnUserInvite, I_OnPostLocalTopicChange,
  59                 I_OnWallops, I_OnUserNotice, I_OnUserMessage, I_OnBackgroundTimer,
  60                 I_OnUserJoin, I_OnChangeHost, I_OnChangeName, I_OnUserPart, I_OnPostConnect,
  61                 I_OnUserQuit, I_OnUserPostNick, I_OnUserKick, I_OnRemoteKill, I_OnRehash,
  62                 I_OnOper, I_OnAddLine, I_OnDelLine, I_ProtoSendMode, I_OnMode,
  63                 I_OnStats, I_ProtoSendMetaData, I_OnEvent, I_OnSetAway, I_OnCancelAway, I_OnPostCommand
  64         };
  65         ServerInstance->Modules->Attach(eventlist, this, 29);
  66
  67         for (std::vector<User*>::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
  68         {
  69                 this->OnPostConnect((*i));
  70         }
  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().c_str()))))
  83                 {
  84                         if (*user->oper)
  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().c_str())) && (!IS_OPER(user)))
  96                 return;
  97         /* Or if the server is hidden and they're not an oper */
  98         else if ((Current->Hidden) && (!IS_OPER(user)))
  99                 return;
 100
 101         user->WriteServ("364 %s %s %s :%d %s",  user->nick,Current->GetName().c_str(),
 102                         (Utils->FlatLinks && (!IS_OPER(user))) ? ServerInstance->Config->ServerName : Parent.c_str(),
 103                         (Utils->FlatLinks && (!IS_OPER(user))) ? 0 : hops,
 104                         Current->GetDesc().c_str());
 105 }
 106
 107 int ModuleSpanningTree::CountLocalServs()
 108 {
 109         return Utils->TreeRoot->ChildCount();
 110 }
 111
 112 int ModuleSpanningTree::CountServs()
 113 {
 114         return Utils->serverlist.size();
 115 }
 116
 117 void ModuleSpanningTree::HandleLinks(const char** parameters, int pcnt, User* user)
 118 {
 119         ShowLinks(Utils->TreeRoot,user,0);
 120         user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
 121         return;
 122 }
 123
 124 void ModuleSpanningTree::HandleLusers(const char** parameters, int pcnt, User* user)
 125 {
 126         unsigned int n_users = ServerInstance->Users->UserCount();
 127
 128         /* Only update these when someone wants to see them, more efficient */
 129         if ((unsigned int)ServerInstance->Users->LocalUserCount() > max_local)
 130                 max_local = ServerInstance->Users->LocalUserCount();
 131         if (n_users > max_global)
 132                 max_global = n_users;
 133
 134         unsigned int ulined_count = 0;
 135         unsigned int ulined_local_count = 0;
 136
 137         /* If ulined are hidden and we're not an oper, count the number of ulined servers hidden,
 138          * locally and globally (locally means directly connected to us)
 139          */
 140         if ((Utils->HideULines) && (!*user->oper))
 141         {
 142                 for (server_hash::iterator q = Utils->serverlist.begin(); q != Utils->serverlist.end(); q++)
 143                 {
 144                         if (ServerInstance->ULine(q->second->GetName().c_str()))
 145                         {
 146                                 ulined_count++;
 147                                 if (q->second->GetParent() == Utils->TreeRoot)
 148                                         ulined_local_count++;
 149                         }
 150                 }
 151         }
 152         user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,
 153                         n_users-ServerInstance->Users->ModeCount('i'),
 154                         ServerInstance->Users->ModeCount('i'),
 155                         ulined_count ? this->CountServs() - ulined_count : this->CountServs());
 156
 157         if (ServerInstance->Users->OperCount())
 158                 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->Users->OperCount());
 159
 160         if (ServerInstance->Users->UnregisteredUserCount())
 161                 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->Users->UnregisteredUserCount());
 162
 163         if (ServerInstance->ChannelCount())
 164                 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
 165
 166         user->WriteServ("255 %s :I have %d clients and %d servers",user->nick,ServerInstance->Users->LocalUserCount(),ulined_local_count ? this->CountLocalServs() - ulined_local_count : this->CountLocalServs());
 167         user->WriteServ("265 %s :Current Local Users: %d  Max: %d",user->nick,ServerInstance->Users->LocalUserCount(),max_local);
 168         user->WriteServ("266 %s :Current Global Users: %d  Max: %d",user->nick,n_users,max_global);
 169         return;
 170 }
 171
 172 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 173 {
 174         time_t mins_up = secs / 60;
 175         time_t hours_up = mins_up / 60;
 176         time_t days_up = hours_up / 24;
 177         secs = secs % 60;
 178         mins_up = mins_up % 60;
 179         hours_up = hours_up % 24;
 180         return ((days_up ? (ConvToStr(days_up) + "d") : std::string(""))
 181                         + (hours_up ? (ConvToStr(hours_up) + "h") : std::string(""))
 182                         + (mins_up ? (ConvToStr(mins_up) + "m") : std::string(""))
 183                         + ConvToStr(secs) + "s");
 184 }
 185
 186 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 187 {
 188         for (unsigned int j = 0; j < Utils->TreeRoot->ChildCount(); j++)
 189         {
 190                 TreeServer* serv = Utils->TreeRoot->GetChild(j);
 191                 TreeSocket* sock = serv->GetSocket();
 192                 if (sock)
 193                 {
 194                         if (curtime >= serv->NextPingTime())
 195                         {
 196                                 if (serv->AnsweredLastPing())
 197                                 {
 198                                         sock->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" PING "+serv->GetID());
 199                                         serv->SetNextPingTime(curtime + Utils->PingFreq);
 200                                         timeval t;
 201                                         gettimeofday(&t, NULL);
 202                                         long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
 203                                         serv->LastPingMsec = ts;
 204                                         serv->Warned = false;
 205                                 }
 206                                 else
 207                                 {
 208                                         /* they didnt answer, boot them */
 209                                         sock->SendError("Ping timeout");
 210                                         sock->Squit(serv,"Ping timeout");
 211                                         ServerInstance->SE->DelFd(sock);
 212                                         sock->Close();
 213                                         return;
 214                                 }
 215                         }
 216                         else if ((Utils->PingWarnTime) && (!serv->Warned) && (curtime >= serv->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!serv->AnsweredLastPing()))
 217                         {
 218                                 /* The server hasnt responded, send a warning to opers */
 219                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", serv->GetName().c_str(), Utils->PingWarnTime);
 220                                 serv->Warned = true;
 221                         }
 222                 }
 223         }
 224
 225         /*
 226          * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 227          * This prevents lost REMOTECONNECT notices
 228          * XXX this should probably not do this until server has been bursting for, say, 60 seconds or something
 229          */
 230         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 231         {
 232                 if (i->second->bursting)
 233                 {
 234                         ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not finished burst, forcing end of burst.", i->second->GetName().c_str());
 235                         i->second->FinishBurst();
 236                 }
 237         }
 238 }
 239
 240 void ModuleSpanningTree::ConnectServer(Link* x)
 241 {
 242         bool ipvalid = true;
 243         QueryType start_type = DNS_QUERY_A;
 244 #ifdef IPV6
 245         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 #endif
 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                 if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
 265                         return;
 266                 TreeSocket* newsocket = new TreeSocket(Utils, ServerInstance, x->IPAddr,x->Port,false,x->Timeout ? x->Timeout : 10,x->Name.c_str(), x->Bind, x->Hook.empty() ? NULL : Utils->hooks[x->Hook.c_str()]);
 267                 if (newsocket->GetFd() > -1)
 268                 {
 269                         /* Handled automatically on success */
 270                 }
 271                 else
 272                 {
 273                         RemoteMessage(NULL, "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
 274                         if (ServerInstance->SocketCull.find(newsocket) == ServerInstance->SocketCull.end())
 275                                 ServerInstance->SocketCull[newsocket] = newsocket;
 276                         Utils->DoFailOver(x);
 277                 }
 278         }
 279         else
 280         {
 281                 try
 282                 {
 283                         bool cached;
 284                         ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x, cached, start_type);
 285                         ServerInstance->AddResolver(snr, cached);
 286                 }
 287                 catch (ModuleException& e)
 288                 {
 289                         RemoteMessage(NULL, "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 290                         Utils->DoFailOver(x);
 291                 }
 292         }
 293 }
 294
 295 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 296 {
 297         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 298         {
 299                 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
 300                 {
 301                         x->NextConnectTime = curtime + x->AutoConnect;
 302                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 303                         if (x->FailOver.length())
 304                         {
 305                                 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
 306                                 if (CheckFailOver)
 307                                 {
 308                                         /* The failover for this server is currently a member of the network.
 309                                          * The failover probably succeeded, where the main link did not.
 310                                          * Don't try the main link until the failover is gone again.
 311                                          */
 312                                         continue;
 313                                 }
 314                         }
 315                         if (!CheckDupe)
 316                         {
 317                                 // an autoconnected server is not connected. Check if its time to connect it
 318                                 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
 319                                 this->ConnectServer(&(*x));
 320                         }
 321                 }
 322         }
 323 }
 324
 325 int ModuleSpanningTree::HandleVersion(const char** parameters, int pcnt, User* user)
 326 {
 327         // we've already checked if pcnt > 0, so this is safe
 328         TreeServer* found = Utils->FindServerMask(parameters[0]);
 329         if (found)
 330         {
 331                 std::string Version = found->GetVersion();
 332                 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
 333                 if (found == Utils->TreeRoot)
 334                 {
 335                         ServerInstance->Config->Send005(user);
 336                 }
 337         }
 338         else
 339         {
 340                 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
 341         }
 342         return 1;
 343 }
 344
 345 /* This method will attempt to get a link message out to as many people as is required.
 346  * If a user is provided, and that user is local, then the user is sent the message using
 347  * WriteServ (they are the local initiator of that message). If the user is remote, they are
 348  * sent that message remotely via PUSH.
 349  * If the user is NULL, then the notice is sent locally via WriteToSnoMask with snomask 'l',
 350  * and remotely via SNONOTICE with mask 'l'.
 351  */
 352 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 353 {
 354         /* This could cause an infinite loop, because DoOneToMany() will, on error,
 355          * call TreeSocket::OnError(), which in turn will call this function to
 356          * notify everyone of the error. So, drop any messages that are generated
 357          * during the sending of another message. -Special */
 358         static bool SendingRemoteMessage = false;
 359         if (SendingRemoteMessage)
 360                 return;
 361         SendingRemoteMessage = true;
 362
 363         std::deque<std::string> params;
 364         char text[MAXBUF];
 365         va_list argsPtr;
 366
 367         va_start(argsPtr, format);
 368         vsnprintf(text, MAXBUF, format, argsPtr);
 369         va_end(argsPtr);
 370
 371         if (!user)
 372         {
 373                 /* No user, target it generically at everyone */
 374                 ServerInstance->SNO->WriteToSnoMask('l', "%s", text);
 375                 params.push_back("l");
 376                 params.push_back(std::string(":") + text);
 377                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "SNONOTICE", params);
 378         }
 379         else
 380         {
 381                 if (IS_LOCAL(user))
 382                         user->WriteServ("NOTICE %s :%s", user->nick, text);
 383                 else
 384                 {
 385                         params.push_back(user->uuid);
 386                         params.push_back(std::string("::") + ServerInstance->Config->ServerName + " NOTICE " + user->nick + " :*** From " +
 387                                         ServerInstance->Config->ServerName+ ": " + text);
 388                         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "PUSH", params);
 389                 }
 390         }
 391
 392         SendingRemoteMessage = false;
 393 }
 394
 395 int ModuleSpanningTree::HandleConnect(const char** parameters, int pcnt, User* user)
 396 {
 397         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 398         {
 399                 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
 400                 {
 401                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 402                         if (!CheckDupe)
 403                         {
 404                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 405                                 ConnectServer(&(*x));
 406                                 return 1;
 407                         }
 408                         else
 409                         {
 410                                 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());
 411                                 return 1;
 412                         }
 413                 }
 414         }
 415         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0]);
 416         return 1;
 417 }
 418
 419 void ModuleSpanningTree::BroadcastTimeSync()
 420 {
 421         if (Utils->MasterTime)
 422         {
 423                 std::deque<std::string> params;
 424                 params.push_back(ConvToStr(ServerInstance->Time(false)));
 425                 params.push_back("FORCE");
 426                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "TIMESET", params);
 427         }
 428 }
 429
 430 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 431 {
 432         TreeServer* s = Utils->FindServer(servername);
 433         if (s)
 434         {
 435                 description = s->GetDesc();
 436         }
 437 }
 438
 439 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 440 {
 441         if (IS_LOCAL(source))
 442         {
 443                 std::deque<std::string> params;
 444                 params.push_back(dest->uuid);
 445                 params.push_back(channel->name);
 446                 params.push_back(ConvToStr(expiry));
 447                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 448         }
 449 }
 450
 451 void ModuleSpanningTree::OnPostLocalTopicChange(User* user, Channel* chan, const std::string &topic)
 452 {
 453         std::deque<std::string> params;
 454         params.push_back(chan->name);
 455         params.push_back(":"+topic);
 456         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 457 }
 458
 459 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 460 {
 461         if (IS_LOCAL(user))
 462         {
 463                 std::deque<std::string> params;
 464                 params.push_back(":"+text);
 465                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 466         }
 467 }
 468
 469 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 470 {
 471         if (target_type == TYPE_USER)
 472         {
 473                 User* d = (User*)dest;
 474                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 475                 {
 476                         std::deque<std::string> params;
 477                         params.clear();
 478                         params.push_back(d->uuid);
 479                         params.push_back(":"+text);
 480                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 481                 }
 482         }
 483         else if (target_type == TYPE_CHANNEL)
 484         {
 485                 if (IS_LOCAL(user))
 486                 {
 487                         Channel *c = (Channel*)dest;
 488                         if (c)
 489                         {
 490                                 std::string cname = c->name;
 491                                 if (status)
 492                                         cname = status + cname;
 493                                 TreeServerList list;
 494                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 495                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 496                                 {
 497                                         TreeSocket* Sock = i->second->GetSocket();
 498                                         if (Sock)
 499                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 500                                 }
 501                         }
 502                 }
 503         }
 504         else if (target_type == TYPE_SERVER)
 505         {
 506                 if (IS_LOCAL(user))
 507                 {
 508                         char* target = (char*)dest;
 509                         std::deque<std::string> par;
 510                         par.push_back(target);
 511                         par.push_back(":"+text);
 512                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 513                 }
 514         }
 515 }
 516
 517 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 518 {
 519         if (target_type == TYPE_USER)
 520         {
 521                 // route private messages which are targetted at clients only to the server
 522                 // which needs to receive them
 523                 User* d = (User*)dest;
 524                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 525                 {
 526                         std::deque<std::string> params;
 527                         params.clear();
 528                         params.push_back(d->uuid);
 529                         params.push_back(":"+text);
 530                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 531                 }
 532         }
 533         else if (target_type == TYPE_CHANNEL)
 534         {
 535                 if (IS_LOCAL(user))
 536                 {
 537                         Channel *c = (Channel*)dest;
 538                         if (c)
 539                         {
 540                                 std::string cname = c->name;
 541                                 if (status)
 542                                         cname = status + cname;
 543                                 TreeServerList list;
 544                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 545                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 546                                 {
 547                                         TreeSocket* Sock = i->second->GetSocket();
 548                                         if (Sock)
 549                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 550                                 }
 551                         }
 552                 }
 553         }
 554         else if (target_type == TYPE_SERVER)
 555         {
 556                 if (IS_LOCAL(user))
 557                 {
 558                         char* target = (char*)dest;
 559                         std::deque<std::string> par;
 560                         par.push_back(target);
 561                         par.push_back(":"+text);
 562                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 563                 }
 564         }
 565 }
 566
 567 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 568 {
 569         AutoConnectServers(curtime);
 570         DoPingChecks(curtime);
 571 }
 572
 573 void ModuleSpanningTree::OnUserJoin(User* user, Channel* channel, bool sync, bool &silent)
 574 {
 575         // Only do this for local users
 576         if (IS_LOCAL(user))
 577         {
 578                 if (channel->GetUserCounter() == 1)
 579                 {
 580                         std::deque<std::string> params;
 581                         // set up their permissions and the channel TS with FJOIN.
 582                         // All users are FJOINed now, because a module may specify
 583                         // new joining permissions for the user.
 584                         params.push_back(channel->name);
 585                         params.push_back(ConvToStr(channel->age));
 586                         params.push_back(std::string(channel->GetAllPrefixChars(user))+","+std::string(user->uuid));
 587                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 588                         /* First user in, sync the modes for the channel */
 589                         params.pop_back();
 590                         params.push_back(std::string("+") + channel->ChanModes(true));
 591                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FMODE",params);
 592                 }
 593                 else
 594                 {
 595                         std::deque<std::string> params;
 596                         params.push_back(channel->name);
 597                         params.push_back(ConvToStr(channel->age));
 598                         Utils->DoOneToMany(user->uuid,"JOIN",params);
 599                 }
 600         }
 601 }
 602
 603 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 604 {
 605         // only occurs for local clients
 606         if (user->registered != REG_ALL)
 607                 return;
 608         std::deque<std::string> params;
 609         params.push_back(newhost);
 610         Utils->DoOneToMany(user->uuid,"FHOST",params);
 611 }
 612
 613 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 614 {
 615         // only occurs for local clients
 616         if (user->registered != REG_ALL)
 617                 return;
 618         std::deque<std::string> params;
 619         params.push_back(gecos);
 620         Utils->DoOneToMany(user->uuid,"FNAME",params);
 621 }
 622
 623 void ModuleSpanningTree::OnUserPart(User* user, Channel* channel, const std::string &partmessage, bool &silent)
 624 {
 625         if (IS_LOCAL(user))
 626         {
 627                 std::deque<std::string> params;
 628                 params.push_back(channel->name);
 629                 if (!partmessage.empty())
 630                         params.push_back(":"+partmessage);
 631                 Utils->DoOneToMany(user->uuid,"PART",params);
 632         }
 633 }
 634
 635 void ModuleSpanningTree::OnPostConnect(User* user)
 636 {
 637         if (IS_LOCAL(user))
 638         {
 639                 std::deque<std::string> params;
 640                 params.push_back(user->uuid);
 641                 params.push_back(ConvToStr(user->age));
 642                 params.push_back(user->nick);
 643                 params.push_back(user->host);
 644                 params.push_back(user->dhost);
 645                 params.push_back(user->ident);
 646                 params.push_back("+"+std::string(user->FormatModes()));
 647                 params.push_back(user->GetIPString());
 648                 params.push_back(ConvToStr(user->signon));
 649                 params.push_back(":"+std::string(user->fullname));
 650                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 651         }
 652
 653         TreeServer* SourceServer = Utils->FindServer(user->server);
 654         if (SourceServer)
 655         {
 656                 SourceServer->SetUserCount(1); // increment by 1
 657         }
 658 }
 659
 660 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 661 {
 662         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 663         {
 664                 std::deque<std::string> params;
 665
 666                 if (oper_message != reason)
 667                 {
 668                         params.push_back(":"+oper_message);
 669                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 670                 }
 671                 params.clear();
 672                 params.push_back(":"+reason);
 673                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 674         }
 675
 676         // Regardless, We need to modify the user Counts..
 677         TreeServer* SourceServer = Utils->FindServer(user->server);
 678         if (SourceServer)
 679         {
 680                 SourceServer->SetUserCount(-1); // decrement by 1
 681         }
 682 }
 683
 684 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 685 {
 686         if (IS_LOCAL(user))
 687         {
 688                 std::deque<std::string> params;
 689                 params.push_back(user->nick);
 690
 691                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 692                  */
 693                 if (irc::string(user->nick) != assign(oldnick))
 694                         user->age = ServerInstance->Time(true);
 695
 696                 params.push_back(ConvToStr(user->age));
 697                 Utils->DoOneToMany(user->uuid,"NICK",params);
 698         }
 699 }
 700
 701 void ModuleSpanningTree::OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
 702 {
 703         if ((source) && (IS_LOCAL(source)))
 704         {
 705                 std::deque<std::string> params;
 706                 params.push_back(chan->name);
 707                 params.push_back(user->uuid);
 708                 params.push_back(":"+reason);
 709                 Utils->DoOneToMany(source->uuid,"KICK",params);
 710         }
 711         else if (!source)
 712         {
 713                 std::deque<std::string> params;
 714                 params.push_back(chan->name);
 715                 params.push_back(user->uuid);
 716                 params.push_back(":"+reason);
 717                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 718         }
 719 }
 720
 721 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 722 {
 723         std::deque<std::string> params;
 724         params.push_back(":"+reason);
 725         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 726         params.clear();
 727         params.push_back(dest->uuid);
 728         params.push_back(":"+reason);
 729         dest->SetOperQuit(operreason);
 730         Utils->DoOneToMany(source->uuid,"KILL",params);
 731 }
 732
 733 void ModuleSpanningTree::OnRehash(User* user, const std::string &parameter)
 734 {
 735         if (!parameter.empty())
 736         {
 737                 std::deque<std::string> params;
 738                 params.push_back(parameter);
 739                 Utils->DoOneToMany(user ? user->nick : ServerInstance->Config->GetSID(), "REHASH", params);
 740                 // check for self
 741                 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
 742                 {
 743                         ServerInstance->SNO->WriteToSnoMask('A', "Remote rehash initiated locally by \002%s\002", user ? user->nick : ServerInstance->Config->ServerName);
 744                         ServerInstance->RehashServer();
 745                 }
 746         }
 747         Utils->ReadConfiguration(true);
 748         InitializeDisabledCommands(ServerInstance->Config->DisabledCommands, ServerInstance);
 749 }
 750
 751 // note: the protocol does not allow direct umode +o except
 752 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 753 // locally.
 754 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 755 {
 756         if (IS_LOCAL(user))
 757         {
 758                 std::deque<std::string> params;
 759                 params.push_back(opertype);
 760                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 761         }
 762 }
 763
 764 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 765 {
 766         if (x->type == "K")
 767                 return;
 768
 769         char data[MAXBUF];
 770         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
 771         ServerInstance->Config->ServerName, (unsigned long)x->set_time, (unsigned long)x->duration, x->reason);
 772         std::deque<std::string> params;
 773         params.push_back(data);
 774
 775         if (!user)
 776         {
 777                 /* Server-set lines */
 778                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 779         }
 780         else if (IS_LOCAL(user))
 781         {
 782                 /* User-set lines */
 783                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 784         }
 785 }
 786
 787 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 788 {
 789         if (x->type == "K")
 790                 return;
 791
 792         char data[MAXBUF];
 793         snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
 794         std::deque<std::string> params;
 795         params.push_back(data);
 796
 797         if (!user)
 798         {
 799                 /* Server-unset lines */
 800                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 801         }
 802         else if (IS_LOCAL(user))
 803         {
 804                 /* User-unset lines */
 805                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 806         }
 807 }
 808
 809 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const std::string &text)
 810 {
 811         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 812         {
 813                 std::deque<std::string> params;
 814                 std::string command;
 815                 std::string output_text;
 816
 817                 ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, text, output_text);
 818
 819                 if (target_type == TYPE_USER)
 820                 {
 821                         User* u = (User*)dest;
 822                         params.push_back(u->uuid);
 823                         params.push_back(output_text);
 824                         command = "MODE";
 825                 }
 826                 else
 827                 {
 828                         Channel* c = (Channel*)dest;
 829                         params.push_back(c->name);
 830                         params.push_back(ConvToStr(c->age));
 831                         params.push_back(output_text);
 832                         command = "FMODE";
 833                 }
 834
 835                 Utils->DoOneToMany(user->uuid, command, params);
 836         }
 837 }
 838
 839 void ModuleSpanningTree::OnSetAway(User* user)
 840 {
 841         if (IS_LOCAL(user))
 842         {
 843                 std::deque<std::string> params;
 844                 params.push_back(":"+std::string(user->awaymsg));
 845                 Utils->DoOneToMany(user->uuid,"AWAY",params);
 846         }
 847 }
 848
 849 void ModuleSpanningTree::OnCancelAway(User* user)
 850 {
 851         if (IS_LOCAL(user))
 852         {
 853                 std::deque<std::string> params;
 854                 params.clear();
 855                 Utils->DoOneToMany(user->uuid,"AWAY",params);
 856         }
 857 }
 858
 859 void ModuleSpanningTree::ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
 860 {
 861         TreeSocket* s = (TreeSocket*)opaque;
 862         std::string output_text;
 863
 864         ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, modeline, output_text);
 865
 866         if (target)
 867         {
 868                 if (target_type == TYPE_USER)
 869                 {
 870                         User* u = (User*)target;
 871                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+u->uuid+" "+ConvToStr(u->age)+" "+output_text);
 872                 }
 873                 else
 874                 {
 875                         Channel* c = (Channel*)target;
 876                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 877                 }
 878         }
 879 }
 880
 881 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
 882 {
 883         TreeSocket* s = (TreeSocket*)opaque;
 884         if (target)
 885         {
 886                 if (target_type == TYPE_USER)
 887                 {
 888                         User* u = (User*)target;
 889                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 890                 }
 891                 else if (target_type == TYPE_CHANNEL)
 892                 {
 893                         Channel* c = (Channel*)target;
 894                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 895                 }
 896         }
 897         if (target_type == TYPE_OTHER)
 898         {
 899                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 900         }
 901 }
 902
 903 void ModuleSpanningTree::OnEvent(Event* event)
 904 {
 905         std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
 906         if (event->GetEventID() == "send_metadata")
 907         {
 908                 if (params->size() < 3)
 909                         return;
 910                 (*params)[2] = ":" + (*params)[2];
 911                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"METADATA",*params);
 912         }
 913         else if (event->GetEventID() == "send_topic")
 914         {
 915                 if (params->size() < 2)
 916                         return;
 917                 (*params)[1] = ":" + (*params)[1];
 918                 params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
 919                 params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time(true)));
 920                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FTOPIC",*params);
 921         }
 922         else if (event->GetEventID() == "send_mode")
 923         {
 924                 if (params->size() < 2)
 925                         return;
 926                 // Insert the TS value of the object, either User or Channel
 927                 time_t ourTS = 0;
 928                 std::string output_text;
 929
 930                 /* Warning: in-place translation is only safe for type TR_NICK */
 931                 for (size_t n = 0; n < params->size(); n++)
 932                         ServerInstance->Parser->TranslateUIDs(TR_NICK, (*params)[n], (*params)[n]);
 933
 934                 User* a = ServerInstance->FindNick((*params)[0]);
 935                 if (a)
 936                 {
 937                         ourTS = a->age;
 938                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODE",*params);
 939                         return;
 940                 }
 941                 else
 942                 {
 943                         Channel* c = ServerInstance->FindChan((*params)[0]);
 944                         if (c)
 945                         {
 946                                 ourTS = c->age;
 947                                 params->insert(params->begin() + 1,ConvToStr(ourTS));
 948                                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FMODE",*params);
 949                         }
 950                 }
 951         }
 952         else if (event->GetEventID() == "send_mode_explicit")
 953         {
 954                 if (params->size() < 2)
 955                         return;
 956                 std::string output_text;
 957
 958                 /* Warning: in-place translation is only safe for type TR_NICK */
 959                 for (size_t n = 0; n < params->size(); n++)
 960                         ServerInstance->Parser->TranslateUIDs(TR_NICK, (*params)[n], (*params)[n]);
 961
 962                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODE",*params);
 963         }
 964         else if (event->GetEventID() == "send_opers")
 965         {
 966                 if (params->size() < 1)
 967                         return;
 968                 (*params)[0] = ":" + (*params)[0];
 969                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"OPERNOTICE",*params);
 970         }
 971         else if (event->GetEventID() == "send_modeset")
 972         {
 973                 if (params->size() < 2)
 974                         return;
 975                 (*params)[1] = ":" + (*params)[1];
 976                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODENOTICE",*params);
 977         }
 978         else if (event->GetEventID() == "send_snoset")
 979         {
 980                 if (params->size() < 2)
 981                         return;
 982                 (*params)[1] = ":" + (*params)[1];
 983                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SNONOTICE",*params);
 984         }
 985         else if (event->GetEventID() == "send_push")
 986         {
 987                 if (params->size() < 2)
 988                         return;
 989
 990                 User *a = ServerInstance->FindNick((*params)[0]);
 991
 992                 if (!a)
 993                         return;
 994
 995                 (*params)[0] = a->uuid;
 996                 (*params)[1] = ":" + (*params)[1];
 997                 Utils->DoOneToOne(ServerInstance->Config->GetSID(), "PUSH", *params, a->server);
 998         }
 999 }
1000
1001 ModuleSpanningTree::~ModuleSpanningTree()
1002 {
1003         /* This will also free the listeners */
1004         delete Utils;
1005         if (SyncTimer)
1006                 ServerInstance->Timers->DelTimer(SyncTimer);
1007
1008         ServerInstance->Timers->DelTimer(RefreshTimer);
1009
1010         ServerInstance->Modules->DoneWithInterface("BufferedSocketHook");
1011 }
1012
1013 Version ModuleSpanningTree::GetVersion()
1014 {
1015         return Version(1,1,0,2,VF_VENDOR,API_VERSION);
1016 }
1017
1018 /* It is IMPORTANT that m_spanningtree is the last module in the chain
1019  * so that any activity it sees is FINAL, e.g. we arent going to send out
1020  * a NICK message before m_cloaking has finished putting the +x on the user,
1021  * etc etc.
1022  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
1023  * the module call queue.
1024  */
1025 void ModuleSpanningTree::Prioritize()
1026 {
1027         ServerInstance->Modules->SetPriority(this, PRIO_LAST);
1028 }
1029
1030 MODULE_INIT(ModuleSpanningTree)