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 #include "m_spanningtree/protocolinterface.h"
  34
  35 /* $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 m_spanningtree/protocolinterface.h */
  36
  37 ModuleSpanningTree::ModuleSpanningTree(InspIRCd* Me)
  38         : Module(Me), max_local(0), max_global(0)
  39 {
  40         ServerInstance->Modules->UseInterface("BufferedSocketHook");
  41         Utils = new SpanningTreeUtilities(ServerInstance, this);
  42         command_rconnect = new cmd_rconnect(ServerInstance, this, Utils);
  43         ServerInstance->AddCommand(command_rconnect);
  44         command_rsquit = new cmd_rsquit(ServerInstance, this, Utils);
  45         ServerInstance->AddCommand(command_rsquit);
  46         RefreshTimer = new CacheRefreshTimer(ServerInstance, Utils);
  47         ServerInstance->Timers->AddTimer(RefreshTimer);
  48
  49         Implementation eventlist[] =
  50         {
  51                 I_OnPreCommand, I_OnGetServerDescription, I_OnUserInvite, I_OnPostLocalTopicChange,
  52                 I_OnWallops, I_OnUserNotice, I_OnUserMessage, I_OnBackgroundTimer,
  53                 I_OnUserJoin, I_OnChangeHost, I_OnChangeName, I_OnUserPart, I_OnPostConnect,
  54                 I_OnUserQuit, I_OnUserPostNick, I_OnUserKick, I_OnRemoteKill, I_OnRehash,
  55                 I_OnOper, I_OnAddLine, I_OnDelLine, I_ProtoSendMode, I_OnMode,
  56                 I_OnStats, I_ProtoSendMetaData, I_OnEvent, I_OnSetAway, I_OnPostCommand
  57         };
  58         ServerInstance->Modules->Attach(eventlist, this, 28);
  59
  60         delete ServerInstance->PI;
  61         ServerInstance->PI = new SpanningTreeProtocolInterface(this, Utils, ServerInstance);
  62
  63         for (std::vector<User*>::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
  64         {
  65                 this->OnPostConnect((*i));
  66         }
  67 }
  68
  69 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
  70 {
  71         std::string Parent = Utils->TreeRoot->GetName();
  72         if (Current->GetParent())
  73         {
  74                 Parent = Current->GetParent()->GetName();
  75         }
  76         for (unsigned int q = 0; q < Current->ChildCount(); q++)
  77         {
  78                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str()))))
  79                 {
  80                         if (*user->oper)
  81                         {
  82                                  ShowLinks(Current->GetChild(q),user,hops+1);
  83                         }
  84                 }
  85                 else
  86                 {
  87                         ShowLinks(Current->GetChild(q),user,hops+1);
  88                 }
  89         }
  90         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
  91         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!IS_OPER(user)))
  92                 return;
  93         /* Or if the server is hidden and they're not an oper */
  94         else if ((Current->Hidden) && (!IS_OPER(user)))
  95                 return;
  96
  97         user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick,Current->GetName().c_str(),
  98                         (Utils->FlatLinks && (!IS_OPER(user))) ? ServerInstance->Config->ServerName : Parent.c_str(),
  99                         (Utils->FlatLinks && (!IS_OPER(user))) ? 0 : hops,
 100                         Current->GetDesc().c_str());
 101 }
 102
 103 int ModuleSpanningTree::CountLocalServs()
 104 {
 105         return Utils->TreeRoot->ChildCount();
 106 }
 107
 108 int ModuleSpanningTree::CountServs()
 109 {
 110         return Utils->serverlist.size();
 111 }
 112
 113 void ModuleSpanningTree::HandleLinks(const char* const* parameters, int pcnt, User* user)
 114 {
 115         ShowLinks(Utils->TreeRoot,user,0);
 116         user->WriteNumeric(365, "%s * :End of /LINKS list.",user->nick);
 117         return;
 118 }
 119
 120 void ModuleSpanningTree::HandleLusers(const char* const* parameters, int pcnt, User* user)
 121 {
 122         unsigned int n_users = ServerInstance->Users->UserCount();
 123
 124         /* Only update these when someone wants to see them, more efficient */
 125         if ((unsigned int)ServerInstance->Users->LocalUserCount() > max_local)
 126                 max_local = ServerInstance->Users->LocalUserCount();
 127         if (n_users > max_global)
 128                 max_global = n_users;
 129
 130         unsigned int ulined_count = 0;
 131         unsigned int ulined_local_count = 0;
 132
 133         /* If ulined are hidden and we're not an oper, count the number of ulined servers hidden,
 134          * locally and globally (locally means directly connected to us)
 135          */
 136         if ((Utils->HideULines) && (!*user->oper))
 137         {
 138                 for (server_hash::iterator q = Utils->serverlist.begin(); q != Utils->serverlist.end(); q++)
 139                 {
 140                         if (ServerInstance->ULine(q->second->GetName().c_str()))
 141                         {
 142                                 ulined_count++;
 143                                 if (q->second->GetParent() == Utils->TreeRoot)
 144                                         ulined_local_count++;
 145                         }
 146                 }
 147         }
 148         user->WriteNumeric(251, "%s :There are %d users and %d invisible on %d servers",user->nick,
 149                         n_users-ServerInstance->Users->ModeCount('i'),
 150                         ServerInstance->Users->ModeCount('i'),
 151                         ulined_count ? this->CountServs() - ulined_count : this->CountServs());
 152
 153         if (ServerInstance->Users->OperCount())
 154                 user->WriteNumeric(252, "%s %d :operator(s) online",user->nick,ServerInstance->Users->OperCount());
 155
 156         if (ServerInstance->Users->UnregisteredUserCount())
 157                 user->WriteNumeric(253, "%s %d :unknown connections",user->nick,ServerInstance->Users->UnregisteredUserCount());
 158
 159         if (ServerInstance->ChannelCount())
 160                 user->WriteNumeric(254, "%s %ld :channels formed",user->nick,ServerInstance->ChannelCount());
 161
 162         user->WriteNumeric(255, "%s :I have %d clients and %d servers",user->nick,ServerInstance->Users->LocalUserCount(),ulined_local_count ? this->CountLocalServs() - ulined_local_count : this->CountLocalServs());
 163         user->WriteNumeric(265, "%s :Current Local Users: %d  Max: %d",user->nick,ServerInstance->Users->LocalUserCount(),max_local);
 164         user->WriteNumeric(266, "%s :Current Global Users: %d  Max: %d",user->nick,n_users,max_global);
 165         return;
 166 }
 167
 168 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 169 {
 170         time_t mins_up = secs / 60;
 171         time_t hours_up = mins_up / 60;
 172         time_t days_up = hours_up / 24;
 173         secs = secs % 60;
 174         mins_up = mins_up % 60;
 175         hours_up = hours_up % 24;
 176         return ((days_up ? (ConvToStr(days_up) + "d") : std::string(""))
 177                         + (hours_up ? (ConvToStr(hours_up) + "h") : std::string(""))
 178                         + (mins_up ? (ConvToStr(mins_up) + "m") : std::string(""))
 179                         + ConvToStr(secs) + "s");
 180 }
 181
 182 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 183 {
 184         for (unsigned int j = 0; j < Utils->TreeRoot->ChildCount(); j++)
 185         {
 186                 TreeServer* serv = Utils->TreeRoot->GetChild(j);
 187                 TreeSocket* sock = serv->GetSocket();
 188                 if (sock)
 189                 {
 190                         if (curtime >= serv->NextPingTime())
 191                         {
 192                                 if (serv->AnsweredLastPing())
 193                                 {
 194                                         sock->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" PING "+serv->GetID());
 195                                         serv->SetNextPingTime(curtime + Utils->PingFreq);
 196                                         timeval t;
 197                                         gettimeofday(&t, NULL);
 198                                         long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
 199                                         serv->LastPingMsec = ts;
 200                                         serv->Warned = false;
 201                                 }
 202                                 else
 203                                 {
 204                                         /* they didnt answer, boot them */
 205                                         sock->SendError("Ping timeout");
 206                                         sock->Squit(serv,"Ping timeout");
 207                                         ServerInstance->SE->DelFd(sock);
 208                                         sock->Close();
 209                                         return;
 210                                 }
 211                         }
 212                         else if ((Utils->PingWarnTime) && (!serv->Warned) && (curtime >= serv->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!serv->AnsweredLastPing()))
 213                         {
 214                                 /* The server hasnt responded, send a warning to opers */
 215                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", serv->GetName().c_str(), Utils->PingWarnTime);
 216                                 serv->Warned = true;
 217                         }
 218                 }
 219         }
 220
 221         /*
 222          * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 223          * This prevents lost REMOTECONNECT notices
 224          * XXX this should probably not do this until server has been bursting for, say, 60 seconds or something
 225          */
 226         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 227         {
 228                 if (i->second->bursting)
 229                 {
 230                         ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not finished burst, forcing end of burst.", i->second->GetName().c_str());
 231                         i->second->FinishBurst();
 232                 }
 233         }
 234 }
 235
 236 void ModuleSpanningTree::ConnectServer(Link* x)
 237 {
 238         bool ipvalid = true;
 239         QueryType start_type = DNS_QUERY_A;
 240 #ifdef IPV6
 241         start_type = DNS_QUERY_AAAA;
 242         if (strchr(x->IPAddr.c_str(),':'))
 243         {
 244                 in6_addr n;
 245                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 246                         ipvalid = false;
 247         }
 248         else
 249 #endif
 250         {
 251                 in_addr n;
 252                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 253                         ipvalid = false;
 254         }
 255
 256         /* Do we already have an IP? If so, no need to resolve it. */
 257         if (ipvalid)
 258         {
 259                 /* Gave a hook, but it wasnt one we know */
 260                 if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
 261                         return;
 262                 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()]);
 263                 if (newsocket->GetFd() > -1)
 264                 {
 265                         /* Handled automatically on success */
 266                 }
 267                 else
 268                 {
 269                         RemoteMessage(NULL, "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
 270                         if (ServerInstance->SocketCull.find(newsocket) == ServerInstance->SocketCull.end())
 271                                 ServerInstance->SocketCull[newsocket] = newsocket;
 272                         Utils->DoFailOver(x);
 273                 }
 274         }
 275         else
 276         {
 277                 try
 278                 {
 279                         bool cached;
 280                         ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x, cached, start_type);
 281                         ServerInstance->AddResolver(snr, cached);
 282                 }
 283                 catch (ModuleException& e)
 284                 {
 285                         RemoteMessage(NULL, "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 286                         Utils->DoFailOver(x);
 287                 }
 288         }
 289 }
 290
 291 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 292 {
 293         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 294         {
 295                 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
 296                 {
 297                         x->NextConnectTime = curtime + x->AutoConnect;
 298                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 299                         if (x->FailOver.length())
 300                         {
 301                                 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
 302                                 if (CheckFailOver)
 303                                 {
 304                                         /* The failover for this server is currently a member of the network.
 305                                          * The failover probably succeeded, where the main link did not.
 306                                          * Don't try the main link until the failover is gone again.
 307                                          */
 308                                         continue;
 309                                 }
 310                         }
 311                         if (!CheckDupe)
 312                         {
 313                                 // an autoconnected server is not connected. Check if its time to connect it
 314                                 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
 315                                 this->ConnectServer(&(*x));
 316                         }
 317                 }
 318         }
 319 }
 320
 321 int ModuleSpanningTree::HandleVersion(const char* const* parameters, int pcnt, User* user)
 322 {
 323         // we've already checked if pcnt > 0, so this is safe
 324         TreeServer* found = Utils->FindServerMask(parameters[0]);
 325         if (found)
 326         {
 327                 std::string Version = found->GetVersion();
 328                 user->WriteNumeric(351, "%s :%s",user->nick,Version.c_str());
 329                 if (found == Utils->TreeRoot)
 330                 {
 331                         ServerInstance->Config->Send005(user);
 332                 }
 333         }
 334         else
 335         {
 336                 user->WriteNumeric(402, "%s %s :No such server",user->nick,parameters[0]);
 337         }
 338         return 1;
 339 }
 340
 341 /* This method will attempt to get a link message out to as many people as is required.
 342  * If a user is provided, and that user is local, then the user is sent the message using
 343  * WriteServ (they are the local initiator of that message). If the user is remote, they are
 344  * sent that message remotely via PUSH.
 345  * If the user is NULL, then the notice is sent locally via WriteToSnoMask with snomask 'l',
 346  * and remotely via SNONOTICE with mask 'l'.
 347  */
 348 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 349 {
 350         /* This could cause an infinite loop, because DoOneToMany() will, on error,
 351          * call TreeSocket::OnError(), which in turn will call this function to
 352          * notify everyone of the error. So, drop any messages that are generated
 353          * during the sending of another message. -Special */
 354         static bool SendingRemoteMessage = false;
 355         if (SendingRemoteMessage)
 356                 return;
 357         SendingRemoteMessage = true;
 358
 359         std::deque<std::string> params;
 360         char text[MAXBUF];
 361         va_list argsPtr;
 362
 363         va_start(argsPtr, format);
 364         vsnprintf(text, MAXBUF, format, argsPtr);
 365         va_end(argsPtr);
 366
 367         if (!user)
 368         {
 369                 /* No user, target it generically at everyone */
 370                 ServerInstance->SNO->WriteToSnoMask('l', "%s", text);
 371                 params.push_back("l");
 372                 params.push_back(std::string(":") + text);
 373                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "SNONOTICE", params);
 374         }
 375         else
 376         {
 377                 if (IS_LOCAL(user))
 378                         user->WriteServ("NOTICE %s :%s", user->nick, text);
 379                 else
 380                 {
 381                         params.push_back(user->uuid);
 382                         params.push_back(std::string("::") + ServerInstance->Config->ServerName + " NOTICE " + user->nick + " :*** From " +
 383                                         ServerInstance->Config->ServerName+ ": " + text);
 384                         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "PUSH", params);
 385                 }
 386         }
 387
 388         SendingRemoteMessage = false;
 389 }
 390
 391 int ModuleSpanningTree::HandleConnect(const char* const* parameters, int pcnt, User* user)
 392 {
 393         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 394         {
 395                 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
 396                 {
 397                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 398                         if (!CheckDupe)
 399                         {
 400                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 401                                 ConnectServer(&(*x));
 402                                 return 1;
 403                         }
 404                         else
 405                         {
 406                                 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());
 407                                 return 1;
 408                         }
 409                 }
 410         }
 411         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0]);
 412         return 1;
 413 }
 414
 415 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 416 {
 417         TreeServer* s = Utils->FindServer(servername);
 418         if (s)
 419         {
 420                 description = s->GetDesc();
 421         }
 422 }
 423
 424 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 425 {
 426         if (IS_LOCAL(source))
 427         {
 428                 std::deque<std::string> params;
 429                 params.push_back(dest->uuid);
 430                 params.push_back(channel->name);
 431                 params.push_back(ConvToStr(expiry));
 432                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 433         }
 434 }
 435
 436 void ModuleSpanningTree::OnPostLocalTopicChange(User* user, Channel* chan, const std::string &topic)
 437 {
 438         std::deque<std::string> params;
 439         params.push_back(chan->name);
 440         params.push_back(":"+topic);
 441         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 442 }
 443
 444 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 445 {
 446         if (IS_LOCAL(user))
 447         {
 448                 std::deque<std::string> params;
 449                 params.push_back(":"+text);
 450                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 451         }
 452 }
 453
 454 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 455 {
 456         if (target_type == TYPE_USER)
 457         {
 458                 User* d = (User*)dest;
 459                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 460                 {
 461                         std::deque<std::string> params;
 462                         params.clear();
 463                         params.push_back(d->uuid);
 464                         params.push_back(":"+text);
 465                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 466                 }
 467         }
 468         else if (target_type == TYPE_CHANNEL)
 469         {
 470                 if (IS_LOCAL(user))
 471                 {
 472                         Channel *c = (Channel*)dest;
 473                         if (c)
 474                         {
 475                                 std::string cname = c->name;
 476                                 if (status)
 477                                         cname = status + cname;
 478                                 TreeServerList list;
 479                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 480                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 481                                 {
 482                                         TreeSocket* Sock = i->second->GetSocket();
 483                                         if (Sock)
 484                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 485                                 }
 486                         }
 487                 }
 488         }
 489         else if (target_type == TYPE_SERVER)
 490         {
 491                 if (IS_LOCAL(user))
 492                 {
 493                         char* target = (char*)dest;
 494                         std::deque<std::string> par;
 495                         par.push_back(target);
 496                         par.push_back(":"+text);
 497                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 498                 }
 499         }
 500 }
 501
 502 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 503 {
 504         if (target_type == TYPE_USER)
 505         {
 506                 // route private messages which are targetted at clients only to the server
 507                 // which needs to receive them
 508                 User* d = (User*)dest;
 509                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 510                 {
 511                         std::deque<std::string> params;
 512                         params.clear();
 513                         params.push_back(d->uuid);
 514                         params.push_back(":"+text);
 515                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 516                 }
 517         }
 518         else if (target_type == TYPE_CHANNEL)
 519         {
 520                 if (IS_LOCAL(user))
 521                 {
 522                         Channel *c = (Channel*)dest;
 523                         if (c)
 524                         {
 525                                 std::string cname = c->name;
 526                                 if (status)
 527                                         cname = status + cname;
 528                                 TreeServerList list;
 529                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 530                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 531                                 {
 532                                         TreeSocket* Sock = i->second->GetSocket();
 533                                         if (Sock)
 534                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 535                                 }
 536                         }
 537                 }
 538         }
 539         else if (target_type == TYPE_SERVER)
 540         {
 541                 if (IS_LOCAL(user))
 542                 {
 543                         char* target = (char*)dest;
 544                         std::deque<std::string> par;
 545                         par.push_back(target);
 546                         par.push_back(":"+text);
 547                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 548                 }
 549         }
 550 }
 551
 552 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 553 {
 554         AutoConnectServers(curtime);
 555         DoPingChecks(curtime);
 556 }
 557
 558 void ModuleSpanningTree::OnUserJoin(User* user, Channel* channel, bool sync, bool &silent)
 559 {
 560         // Only do this for local users
 561         if (IS_LOCAL(user))
 562         {
 563                 if (channel->GetUserCounter() == 1)
 564                 {
 565                         std::deque<std::string> params;
 566                         // set up their permissions and the channel TS with FJOIN.
 567                         // All users are FJOINed now, because a module may specify
 568                         // new joining permissions for the user.
 569                         params.push_back(channel->name);
 570                         params.push_back(ConvToStr(channel->age));
 571                         params.push_back(std::string(channel->GetAllPrefixChars(user))+","+std::string(user->uuid));
 572                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 573                         /* First user in, sync the modes for the channel */
 574                         params.pop_back();
 575                         params.push_back(std::string("+") + channel->ChanModes(true));
 576                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FMODE",params);
 577                 }
 578                 else
 579                 {
 580                         std::deque<std::string> params;
 581                         params.push_back(channel->name);
 582                         params.push_back(ConvToStr(channel->age));
 583                         Utils->DoOneToMany(user->uuid,"JOIN",params);
 584                 }
 585         }
 586 }
 587
 588 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 589 {
 590         // only occurs for local clients
 591         if (user->registered != REG_ALL)
 592                 return;
 593         std::deque<std::string> params;
 594         params.push_back(newhost);
 595         Utils->DoOneToMany(user->uuid,"FHOST",params);
 596 }
 597
 598 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 599 {
 600         // only occurs for local clients
 601         if (user->registered != REG_ALL)
 602                 return;
 603         std::deque<std::string> params;
 604         params.push_back(gecos);
 605         Utils->DoOneToMany(user->uuid,"FNAME",params);
 606 }
 607
 608 void ModuleSpanningTree::OnUserPart(User* user, Channel* channel, const std::string &partmessage, bool &silent)
 609 {
 610         if (IS_LOCAL(user))
 611         {
 612                 std::deque<std::string> params;
 613                 params.push_back(channel->name);
 614                 if (!partmessage.empty())
 615                         params.push_back(":"+partmessage);
 616                 Utils->DoOneToMany(user->uuid,"PART",params);
 617         }
 618 }
 619
 620 void ModuleSpanningTree::OnPostConnect(User* user)
 621 {
 622         if (IS_LOCAL(user))
 623         {
 624                 std::deque<std::string> params;
 625                 params.push_back(user->uuid);
 626                 params.push_back(ConvToStr(user->age));
 627                 params.push_back(user->nick);
 628                 params.push_back(user->host);
 629                 params.push_back(user->dhost);
 630                 params.push_back(user->ident);
 631                 params.push_back("+"+std::string(user->FormatModes()));
 632                 params.push_back(user->GetIPString());
 633                 params.push_back(ConvToStr(user->signon));
 634                 params.push_back(":"+std::string(user->fullname));
 635                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 636         }
 637
 638         TreeServer* SourceServer = Utils->FindServer(user->server);
 639         if (SourceServer)
 640         {
 641                 SourceServer->SetUserCount(1); // increment by 1
 642         }
 643 }
 644
 645 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 646 {
 647         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 648         {
 649                 std::deque<std::string> params;
 650
 651                 if (oper_message != reason)
 652                 {
 653                         params.push_back(":"+oper_message);
 654                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 655                 }
 656                 params.clear();
 657                 params.push_back(":"+reason);
 658                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 659         }
 660
 661         // Regardless, We need to modify the user Counts..
 662         TreeServer* SourceServer = Utils->FindServer(user->server);
 663         if (SourceServer)
 664         {
 665                 SourceServer->SetUserCount(-1); // decrement by 1
 666         }
 667 }
 668
 669 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 670 {
 671         if (IS_LOCAL(user))
 672         {
 673                 std::deque<std::string> params;
 674                 params.push_back(user->nick);
 675
 676                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 677                  */
 678                 if (irc::string(user->nick) != assign(oldnick))
 679                         user->age = ServerInstance->Time();
 680
 681                 params.push_back(ConvToStr(user->age));
 682                 Utils->DoOneToMany(user->uuid,"NICK",params);
 683         }
 684 }
 685
 686 void ModuleSpanningTree::OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
 687 {
 688         if ((source) && (IS_LOCAL(source)))
 689         {
 690                 std::deque<std::string> params;
 691                 params.push_back(chan->name);
 692                 params.push_back(user->uuid);
 693                 params.push_back(":"+reason);
 694                 Utils->DoOneToMany(source->uuid,"KICK",params);
 695         }
 696         else if (!source)
 697         {
 698                 std::deque<std::string> params;
 699                 params.push_back(chan->name);
 700                 params.push_back(user->uuid);
 701                 params.push_back(":"+reason);
 702                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 703         }
 704 }
 705
 706 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 707 {
 708         std::deque<std::string> params;
 709         params.push_back(":"+reason);
 710         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 711         params.clear();
 712         params.push_back(dest->uuid);
 713         params.push_back(":"+reason);
 714         dest->SetOperQuit(operreason);
 715         Utils->DoOneToMany(source->uuid,"KILL",params);
 716 }
 717
 718 void ModuleSpanningTree::OnRehash(User* user, const std::string &parameter)
 719 {
 720         if (!parameter.empty())
 721         {
 722                 std::deque<std::string> params;
 723                 params.push_back(parameter);
 724                 Utils->DoOneToMany(user ? user->nick : ServerInstance->Config->GetSID(), "REHASH", params);
 725                 // check for self
 726                 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
 727                 {
 728                         ServerInstance->SNO->WriteToSnoMask('A', "Remote rehash initiated locally by \002%s\002", user ? user->nick : ServerInstance->Config->ServerName);
 729                         ServerInstance->RehashServer();
 730                 }
 731         }
 732         Utils->ReadConfiguration(true);
 733         InitializeDisabledCommands(ServerInstance->Config->DisabledCommands, ServerInstance);
 734 }
 735
 736 // note: the protocol does not allow direct umode +o except
 737 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 738 // locally.
 739 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 740 {
 741         if (IS_LOCAL(user))
 742         {
 743                 std::deque<std::string> params;
 744                 params.push_back(opertype);
 745                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 746         }
 747 }
 748
 749 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 750 {
 751         if (!x->IsBurstable())
 752                 return;
 753
 754         char data[MAXBUF];
 755         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
 756         ServerInstance->Config->ServerName, (unsigned long)x->set_time, (unsigned long)x->duration, x->reason);
 757         std::deque<std::string> params;
 758         params.push_back(data);
 759
 760         if (!user)
 761         {
 762                 /* Server-set lines */
 763                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 764         }
 765         else if (IS_LOCAL(user))
 766         {
 767                 /* User-set lines */
 768                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 769         }
 770 }
 771
 772 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 773 {
 774         if (x->type == "K")
 775                 return;
 776
 777         char data[MAXBUF];
 778         snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
 779         std::deque<std::string> params;
 780         params.push_back(data);
 781
 782         if (!user)
 783         {
 784                 /* Server-unset lines */
 785                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 786         }
 787         else if (IS_LOCAL(user))
 788         {
 789                 /* User-unset lines */
 790                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 791         }
 792 }
 793
 794 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const std::string &text)
 795 {
 796         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 797         {
 798                 std::deque<std::string> params;
 799                 std::string command;
 800                 std::string output_text;
 801
 802                 ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, text, output_text);
 803
 804                 if (target_type == TYPE_USER)
 805                 {
 806                         User* u = (User*)dest;
 807                         params.push_back(u->uuid);
 808                         params.push_back(output_text);
 809                         command = "MODE";
 810                 }
 811                 else
 812                 {
 813                         Channel* c = (Channel*)dest;
 814                         params.push_back(c->name);
 815                         params.push_back(ConvToStr(c->age));
 816                         params.push_back(output_text);
 817                         command = "FMODE";
 818                 }
 819
 820                 Utils->DoOneToMany(user->uuid, command, params);
 821         }
 822 }
 823
 824 int ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 825 {
 826         if (IS_LOCAL(user))
 827         {
 828                 if (awaymsg.empty())
 829                 {
 830                         std::deque<std::string> params;
 831                         params.clear();
 832                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 833                 }
 834                 else
 835                 {
 836                         std::deque<std::string> params;
 837                         params.push_back(":" + awaymsg);
 838                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 839                 }
 840         }
 841
 842         return 0;
 843 }
 844
 845 void ModuleSpanningTree::ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
 846 {
 847         TreeSocket* s = (TreeSocket*)opaque;
 848         std::string output_text;
 849
 850         ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, modeline, output_text);
 851
 852         if (target)
 853         {
 854                 if (target_type == TYPE_USER)
 855                 {
 856                         User* u = (User*)target;
 857                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+u->uuid+" "+ConvToStr(u->age)+" "+output_text);
 858                 }
 859                 else
 860                 {
 861                         Channel* c = (Channel*)target;
 862                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 863                 }
 864         }
 865 }
 866
 867 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
 868 {
 869         TreeSocket* s = (TreeSocket*)opaque;
 870         if (target)
 871         {
 872                 if (target_type == TYPE_USER)
 873                 {
 874                         User* u = (User*)target;
 875                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 876                 }
 877                 else if (target_type == TYPE_CHANNEL)
 878                 {
 879                         Channel* c = (Channel*)target;
 880                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 881                 }
 882         }
 883         if (target_type == TYPE_OTHER)
 884         {
 885                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 886         }
 887 }
 888
 889 void ModuleSpanningTree::OnEvent(Event* event)
 890 {
 891         std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
 892         if (event->GetEventID() == "send_encap")
 893         {
 894                 if (params->size() < 2)
 895                         return;
 896
 897                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ENCAP", *params);
 898         }
 899         else if (event->GetEventID() == "send_metadata")
 900         {
 901                 if (params->size() < 3)
 902                         return;
 903                 (*params)[2] = ":" + (*params)[2];
 904                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"METADATA",*params);
 905         }
 906         else if (event->GetEventID() == "send_topic")
 907         {
 908                 if (params->size() < 2)
 909                         return;
 910                 (*params)[1] = ":" + (*params)[1];
 911                 params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
 912                 params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time()));
 913                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FTOPIC",*params);
 914         }
 915         else if (event->GetEventID() == "send_mode")
 916         {
 917                 if (params->size() < 2)
 918                         return;
 919                 // Insert the TS value of the object, either User or Channel
 920                 time_t ourTS = 0;
 921                 std::string output_text;
 922
 923                 /* Warning: in-place translation is only safe for type TR_NICK */
 924                 for (size_t n = 0; n < params->size(); n++)
 925                         ServerInstance->Parser->TranslateUIDs(TR_NICK, (*params)[n], (*params)[n]);
 926
 927                 User* a = ServerInstance->FindNick((*params)[0]);
 928                 if (a)
 929                 {
 930                         ourTS = a->age;
 931                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODE",*params);
 932                         return;
 933                 }
 934                 else
 935                 {
 936                         Channel* c = ServerInstance->FindChan((*params)[0]);
 937                         if (c)
 938                         {
 939                                 ourTS = c->age;
 940                                 params->insert(params->begin() + 1,ConvToStr(ourTS));
 941                                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FMODE",*params);
 942                         }
 943                 }
 944         }
 945         else if (event->GetEventID() == "send_mode_explicit")
 946         {
 947                 if (params->size() < 2)
 948                         return;
 949                 std::string output_text;
 950
 951                 /* Warning: in-place translation is only safe for type TR_NICK */
 952                 for (size_t n = 0; n < params->size(); n++)
 953                         ServerInstance->Parser->TranslateUIDs(TR_NICK, (*params)[n], (*params)[n]);
 954
 955                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODE",*params);
 956         }
 957         else if (event->GetEventID() == "send_opers")
 958         {
 959                 if (params->size() < 1)
 960                         return;
 961                 (*params)[0] = ":" + (*params)[0];
 962                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"OPERNOTICE",*params);
 963         }
 964         else if (event->GetEventID() == "send_modeset")
 965         {
 966                 if (params->size() < 2)
 967                         return;
 968                 (*params)[1] = ":" + (*params)[1];
 969                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODENOTICE",*params);
 970         }
 971         else if (event->GetEventID() == "send_snoset")
 972         {
 973                 if (params->size() < 2)
 974                         return;
 975                 (*params)[1] = ":" + (*params)[1];
 976                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SNONOTICE",*params);
 977         }
 978         else if (event->GetEventID() == "send_push")
 979         {
 980                 if (params->size() < 2)
 981                         return;
 982
 983                 User *a = ServerInstance->FindNick((*params)[0]);
 984
 985                 if (!a)
 986                         return;
 987
 988                 (*params)[0] = a->uuid;
 989                 (*params)[1] = ":" + (*params)[1];
 990                 Utils->DoOneToOne(ServerInstance->Config->GetSID(), "PUSH", *params, a->server);
 991         }
 992 }
 993
 994 ModuleSpanningTree::~ModuleSpanningTree()
 995 {
 996         /* This will also free the listeners */
 997         delete ServerInstance->PI;
 998         ServerInstance->PI = new ProtocolInterface(ServerInstance);
 999
1000         delete Utils;
1001
1002         ServerInstance->Timers->DelTimer(RefreshTimer);
1003
1004         ServerInstance->Modules->DoneWithInterface("BufferedSocketHook");
1005 }
1006
1007 Version ModuleSpanningTree::GetVersion()
1008 {
1009         return Version(1,2,0,2,VF_VENDOR,API_VERSION);
1010 }
1011
1012 /* It is IMPORTANT that m_spanningtree is the last module in the chain
1013  * so that any activity it sees is FINAL, e.g. we arent going to send out
1014  * a NICK message before m_cloaking has finished putting the +x on the user,
1015  * etc etc.
1016  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
1017  * the module call queue.
1018  */
1019 void ModuleSpanningTree::Prioritize()
1020 {
1021         ServerInstance->Modules->SetPriority(this, PRIO_LAST);
1022 }
1023
1024 MODULE_INIT(ModuleSpanningTree)