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)
 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                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 447         }
 448 }
 449
 450 void ModuleSpanningTree::OnPostLocalTopicChange(User* user, Channel* chan, const std::string &topic)
 451 {
 452         std::deque<std::string> params;
 453         params.push_back(chan->name);
 454         params.push_back(":"+topic);
 455         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 456 }
 457
 458 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 459 {
 460         if (IS_LOCAL(user))
 461         {
 462                 std::deque<std::string> params;
 463                 params.push_back(":"+text);
 464                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 465         }
 466 }
 467
 468 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 469 {
 470         if (target_type == TYPE_USER)
 471         {
 472                 User* d = (User*)dest;
 473                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 474                 {
 475                         std::deque<std::string> params;
 476                         params.clear();
 477                         params.push_back(d->uuid);
 478                         params.push_back(":"+text);
 479                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 480                 }
 481         }
 482         else if (target_type == TYPE_CHANNEL)
 483         {
 484                 if (IS_LOCAL(user))
 485                 {
 486                         Channel *c = (Channel*)dest;
 487                         if (c)
 488                         {
 489                                 std::string cname = c->name;
 490                                 if (status)
 491                                         cname = status + cname;
 492                                 TreeServerList list;
 493                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 494                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 495                                 {
 496                                         TreeSocket* Sock = i->second->GetSocket();
 497                                         if (Sock)
 498                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 499                                 }
 500                         }
 501                 }
 502         }
 503         else if (target_type == TYPE_SERVER)
 504         {
 505                 if (IS_LOCAL(user))
 506                 {
 507                         char* target = (char*)dest;
 508                         std::deque<std::string> par;
 509                         par.push_back(target);
 510                         par.push_back(":"+text);
 511                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 512                 }
 513         }
 514 }
 515
 516 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 517 {
 518         if (target_type == TYPE_USER)
 519         {
 520                 // route private messages which are targetted at clients only to the server
 521                 // which needs to receive them
 522                 User* d = (User*)dest;
 523                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 524                 {
 525                         std::deque<std::string> params;
 526                         params.clear();
 527                         params.push_back(d->uuid);
 528                         params.push_back(":"+text);
 529                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 530                 }
 531         }
 532         else if (target_type == TYPE_CHANNEL)
 533         {
 534                 if (IS_LOCAL(user))
 535                 {
 536                         Channel *c = (Channel*)dest;
 537                         if (c)
 538                         {
 539                                 std::string cname = c->name;
 540                                 if (status)
 541                                         cname = status + cname;
 542                                 TreeServerList list;
 543                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 544                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 545                                 {
 546                                         TreeSocket* Sock = i->second->GetSocket();
 547                                         if (Sock)
 548                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 549                                 }
 550                         }
 551                 }
 552         }
 553         else if (target_type == TYPE_SERVER)
 554         {
 555                 if (IS_LOCAL(user))
 556                 {
 557                         char* target = (char*)dest;
 558                         std::deque<std::string> par;
 559                         par.push_back(target);
 560                         par.push_back(":"+text);
 561                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 562                 }
 563         }
 564 }
 565
 566 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 567 {
 568         AutoConnectServers(curtime);
 569         DoPingChecks(curtime);
 570 }
 571
 572 void ModuleSpanningTree::OnUserJoin(User* user, Channel* channel, bool sync, bool &silent)
 573 {
 574         // Only do this for local users
 575         if (IS_LOCAL(user))
 576         {
 577                 if (channel->GetUserCounter() == 1)
 578                 {
 579                         std::deque<std::string> params;
 580                         // set up their permissions and the channel TS with FJOIN.
 581                         // All users are FJOINed now, because a module may specify
 582                         // new joining permissions for the user.
 583                         params.push_back(channel->name);
 584                         params.push_back(ConvToStr(channel->age));
 585                         params.push_back(std::string(channel->GetAllPrefixChars(user))+","+std::string(user->uuid));
 586                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 587                         /* First user in, sync the modes for the channel */
 588                         params.pop_back();
 589                         params.push_back(std::string("+") + channel->ChanModes(true));
 590                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FMODE",params);
 591                 }
 592                 else
 593                 {
 594                         std::deque<std::string> params;
 595                         params.push_back(channel->name);
 596                         params.push_back(ConvToStr(channel->age));
 597                         Utils->DoOneToMany(user->uuid,"JOIN",params);
 598                 }
 599         }
 600 }
 601
 602 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 603 {
 604         // only occurs for local clients
 605         if (user->registered != REG_ALL)
 606                 return;
 607         std::deque<std::string> params;
 608         params.push_back(newhost);
 609         Utils->DoOneToMany(user->uuid,"FHOST",params);
 610 }
 611
 612 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 613 {
 614         // only occurs for local clients
 615         if (user->registered != REG_ALL)
 616                 return;
 617         std::deque<std::string> params;
 618         params.push_back(gecos);
 619         Utils->DoOneToMany(user->uuid,"FNAME",params);
 620 }
 621
 622 void ModuleSpanningTree::OnUserPart(User* user, Channel* channel, const std::string &partmessage, bool &silent)
 623 {
 624         if (IS_LOCAL(user))
 625         {
 626                 std::deque<std::string> params;
 627                 params.push_back(channel->name);
 628                 if (!partmessage.empty())
 629                         params.push_back(":"+partmessage);
 630                 Utils->DoOneToMany(user->uuid,"PART",params);
 631         }
 632 }
 633
 634 void ModuleSpanningTree::OnPostConnect(User* user)
 635 {
 636         if (IS_LOCAL(user))
 637         {
 638                 std::deque<std::string> params;
 639                 params.push_back(user->uuid);
 640                 params.push_back(ConvToStr(user->age));
 641                 params.push_back(user->nick);
 642                 params.push_back(user->host);
 643                 params.push_back(user->dhost);
 644                 params.push_back(user->ident);
 645                 params.push_back("+"+std::string(user->FormatModes()));
 646                 params.push_back(user->GetIPString());
 647                 params.push_back(ConvToStr(user->signon));
 648                 params.push_back(":"+std::string(user->fullname));
 649                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 650         }
 651
 652         TreeServer* SourceServer = Utils->FindServer(user->server);
 653         if (SourceServer)
 654         {
 655                 SourceServer->SetUserCount(1); // increment by 1
 656         }
 657 }
 658
 659 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 660 {
 661         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 662         {
 663                 std::deque<std::string> params;
 664
 665                 if (oper_message != reason)
 666                 {
 667                         params.push_back(":"+oper_message);
 668                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 669                 }
 670                 params.clear();
 671                 params.push_back(":"+reason);
 672                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 673         }
 674
 675         // Regardless, We need to modify the user Counts..
 676         TreeServer* SourceServer = Utils->FindServer(user->server);
 677         if (SourceServer)
 678         {
 679                 SourceServer->SetUserCount(-1); // decrement by 1
 680         }
 681 }
 682
 683 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 684 {
 685         if (IS_LOCAL(user))
 686         {
 687                 std::deque<std::string> params;
 688                 params.push_back(user->nick);
 689
 690                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 691                  */
 692                 if (irc::string(user->nick) != assign(oldnick))
 693                         user->age = ServerInstance->Time(true);
 694
 695                 params.push_back(ConvToStr(user->age));
 696                 Utils->DoOneToMany(user->uuid,"NICK",params);
 697         }
 698 }
 699
 700 void ModuleSpanningTree::OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
 701 {
 702         if ((source) && (IS_LOCAL(source)))
 703         {
 704                 std::deque<std::string> params;
 705                 params.push_back(chan->name);
 706                 params.push_back(user->uuid);
 707                 params.push_back(":"+reason);
 708                 Utils->DoOneToMany(source->uuid,"KICK",params);
 709         }
 710         else if (!source)
 711         {
 712                 std::deque<std::string> params;
 713                 params.push_back(chan->name);
 714                 params.push_back(user->uuid);
 715                 params.push_back(":"+reason);
 716                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 717         }
 718 }
 719
 720 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 721 {
 722         std::deque<std::string> params;
 723         params.push_back(":"+reason);
 724         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 725         params.clear();
 726         params.push_back(dest->uuid);
 727         params.push_back(":"+reason);
 728         dest->SetOperQuit(operreason);
 729         Utils->DoOneToMany(source->uuid,"KILL",params);
 730 }
 731
 732 void ModuleSpanningTree::OnRehash(User* user, const std::string &parameter)
 733 {
 734         if (!parameter.empty())
 735         {
 736                 std::deque<std::string> params;
 737                 params.push_back(parameter);
 738                 Utils->DoOneToMany(user ? user->nick : ServerInstance->Config->GetSID(), "REHASH", params);
 739                 // check for self
 740                 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
 741                 {
 742                         ServerInstance->SNO->WriteToSnoMask('A', "Remote rehash initiated locally by \002%s\002", user ? user->nick : ServerInstance->Config->ServerName);
 743                         ServerInstance->RehashServer();
 744                 }
 745         }
 746         Utils->ReadConfiguration(true);
 747         InitializeDisabledCommands(ServerInstance->Config->DisabledCommands, ServerInstance);
 748 }
 749
 750 // note: the protocol does not allow direct umode +o except
 751 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 752 // locally.
 753 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 754 {
 755         if (IS_LOCAL(user))
 756         {
 757                 std::deque<std::string> params;
 758                 params.push_back(opertype);
 759                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 760         }
 761 }
 762
 763 void ModuleSpanningTree::OnAddLine(XLine* line, User* user)
 764 {
 765         if (line->type == "K")
 766                 return;
 767
 768         char data[MAXBUF];
 769         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", line->type.c_str(), line->Displayable(),
 770         ServerInstance->Config->ServerName, (unsigned long)line->set_time, (unsigned long)line->duration, line->reason);
 771         std::deque<std::string> params;
 772         params.push_back(data);
 773
 774         if (!user)
 775         {
 776                 /* Server-set lines */
 777                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 778         }
 779         else if (IS_LOCAL(user))
 780         {
 781                 /* User-set lines */
 782                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 783         }
 784 }
 785
 786 void ModuleSpanningTree::OnDelLine(XLine* line, User* user)
 787 {
 788         if (line->type == "K")
 789                 return;
 790
 791         char data[MAXBUF];
 792         snprintf(data,MAXBUF,"%s %s", line->type.c_str(), line->Displayable());
 793         std::deque<std::string> params;
 794         params.push_back(data);
 795
 796         if (!user)
 797         {
 798                 /* Server-unset lines */
 799                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 800         }
 801         else if (IS_LOCAL(user))
 802         {
 803                 /* User-unset lines */
 804                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 805         }
 806 }
 807
 808 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const std::string &text)
 809 {
 810         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 811         {
 812                 std::deque<std::string> params;
 813                 std::string command;
 814                 std::string output_text;
 815
 816                 ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, text, output_text);
 817
 818                 if (target_type == TYPE_USER)
 819                 {
 820                         User* u = (User*)dest;
 821                         params.push_back(u->uuid);
 822                         params.push_back(output_text);
 823                         command = "MODE";
 824                 }
 825                 else
 826                 {
 827                         Channel* c = (Channel*)dest;
 828                         params.push_back(c->name);
 829                         params.push_back(ConvToStr(c->age));
 830                         params.push_back(output_text);
 831                         command = "FMODE";
 832                 }
 833
 834                 Utils->DoOneToMany(user->uuid, command, params);
 835         }
 836 }
 837
 838 void ModuleSpanningTree::OnSetAway(User* user)
 839 {
 840         if (IS_LOCAL(user))
 841         {
 842                 std::deque<std::string> params;
 843                 params.push_back(":"+std::string(user->awaymsg));
 844                 Utils->DoOneToMany(user->uuid,"AWAY",params);
 845         }
 846 }
 847
 848 void ModuleSpanningTree::OnCancelAway(User* user)
 849 {
 850         if (IS_LOCAL(user))
 851         {
 852                 std::deque<std::string> params;
 853                 params.clear();
 854                 Utils->DoOneToMany(user->uuid,"AWAY",params);
 855         }
 856 }
 857
 858 void ModuleSpanningTree::ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
 859 {
 860         TreeSocket* s = (TreeSocket*)opaque;
 861         std::string output_text;
 862
 863         ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, modeline, output_text);
 864
 865         if (target)
 866         {
 867                 if (target_type == TYPE_USER)
 868                 {
 869                         User* u = (User*)target;
 870                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+u->uuid+" "+ConvToStr(u->age)+" "+output_text);
 871                 }
 872                 else
 873                 {
 874                         Channel* c = (Channel*)target;
 875                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 876                 }
 877         }
 878 }
 879
 880 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
 881 {
 882         TreeSocket* s = (TreeSocket*)opaque;
 883         if (target)
 884         {
 885                 if (target_type == TYPE_USER)
 886                 {
 887                         User* u = (User*)target;
 888                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 889                 }
 890                 else if (target_type == TYPE_CHANNEL)
 891                 {
 892                         Channel* c = (Channel*)target;
 893                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 894                 }
 895         }
 896         if (target_type == TYPE_OTHER)
 897         {
 898                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 899         }
 900 }
 901
 902 void ModuleSpanningTree::OnEvent(Event* event)
 903 {
 904         std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
 905         if (event->GetEventID() == "send_metadata")
 906         {
 907                 if (params->size() < 3)
 908                         return;
 909                 (*params)[2] = ":" + (*params)[2];
 910                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"METADATA",*params);
 911         }
 912         else if (event->GetEventID() == "send_topic")
 913         {
 914                 if (params->size() < 2)
 915                         return;
 916                 (*params)[1] = ":" + (*params)[1];
 917                 params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
 918                 params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time(true)));
 919                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FTOPIC",*params);
 920         }
 921         else if (event->GetEventID() == "send_mode")
 922         {
 923                 if (params->size() < 2)
 924                         return;
 925                 // Insert the TS value of the object, either User or Channel
 926                 time_t ourTS = 0;
 927                 std::string output_text;
 928
 929                 /* Warning: in-place translation is only safe for type TR_NICK */
 930                 for (size_t n = 0; n < params->size(); n++)
 931                         ServerInstance->Parser->TranslateUIDs(TR_NICK, (*params)[n], (*params)[n]);
 932
 933                 User* a = ServerInstance->FindNick((*params)[0]);
 934                 if (a)
 935                 {
 936                         ourTS = a->age;
 937                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODE",*params);
 938                         return;
 939                 }
 940                 else
 941                 {
 942                         Channel* a = ServerInstance->FindChan((*params)[0]);
 943                         if (a)
 944                         {
 945                                 ourTS = a->age;
 946                                 params->insert(params->begin() + 1,ConvToStr(ourTS));
 947                                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FMODE",*params);
 948                         }
 949                 }
 950         }
 951         else if (event->GetEventID() == "send_mode_explicit")
 952         {
 953                 if (params->size() < 2)
 954                         return;
 955                 std::string output_text;
 956
 957                 /* Warning: in-place translation is only safe for type TR_NICK */
 958                 for (size_t n = 0; n < params->size(); n++)
 959                         ServerInstance->Parser->TranslateUIDs(TR_NICK, (*params)[n], (*params)[n]);
 960
 961                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODE",*params);
 962         }
 963         else if (event->GetEventID() == "send_opers")
 964         {
 965                 if (params->size() < 1)
 966                         return;
 967                 (*params)[0] = ":" + (*params)[0];
 968                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"OPERNOTICE",*params);
 969         }
 970         else if (event->GetEventID() == "send_modeset")
 971         {
 972                 if (params->size() < 2)
 973                         return;
 974                 (*params)[1] = ":" + (*params)[1];
 975                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODENOTICE",*params);
 976         }
 977         else if (event->GetEventID() == "send_snoset")
 978         {
 979                 if (params->size() < 2)
 980                         return;
 981                 (*params)[1] = ":" + (*params)[1];
 982                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SNONOTICE",*params);
 983         }
 984         else if (event->GetEventID() == "send_push")
 985         {
 986                 if (params->size() < 2)
 987                         return;
 988
 989                 User *a = ServerInstance->FindNick((*params)[0]);
 990
 991                 if (!a)
 992                         return;
 993
 994                 (*params)[0] = a->uuid;
 995                 (*params)[1] = ":" + (*params)[1];
 996                 Utils->DoOneToOne(ServerInstance->Config->GetSID(), "PUSH", *params, a->server);
 997         }
 998 }
 999
1000 ModuleSpanningTree::~ModuleSpanningTree()
1001 {
1002         /* This will also free the listeners */
1003         delete Utils;
1004         if (SyncTimer)
1005                 ServerInstance->Timers->DelTimer(SyncTimer);
1006
1007         ServerInstance->Timers->DelTimer(RefreshTimer);
1008
1009         ServerInstance->Modules->DoneWithInterface("BufferedSocketHook");
1010 }
1011
1012 Version ModuleSpanningTree::GetVersion()
1013 {
1014         return Version(1,1,0,2,VF_VENDOR,API_VERSION);
1015 }
1016
1017 /* It is IMPORTANT that m_spanningtree is the last module in the chain
1018  * so that any activity it sees is FINAL, e.g. we arent going to send out
1019  * a NICK message before m_cloaking has finished putting the +x on the user,
1020  * etc etc.
1021  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
1022  * the module call queue.
1023  */
1024 void ModuleSpanningTree::Prioritize()
1025 {
1026         ServerInstance->Modules->SetPriority(this, PRIO_LAST);
1027 }
1028
1029 MODULE_INIT(ModuleSpanningTree)