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 "xline.h"
  21 #include "transport.h"
  22
  23 #include "m_spanningtree/cachetimer.h"
  24 #include "m_spanningtree/resolvers.h"
  25 #include "m_spanningtree/main.h"
  26 #include "m_spanningtree/utils.h"
  27 #include "m_spanningtree/treeserver.h"
  28 #include "m_spanningtree/link.h"
  29 #include "m_spanningtree/treesocket.h"
  30 #include "m_spanningtree/rconnect.h"
  31 #include "m_spanningtree/rsquit.h"
  32 #include "m_spanningtree/protocolinterface.h"
  33
  34 /* $ModDep: m_spanningtree/cachetimer.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 */
  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(ServerInstance, 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         RefreshTimer = new CacheRefreshTimer(ServerInstance, Utils);
  46         ServerInstance->Timers->AddTimer(RefreshTimer);
  47
  48         Implementation eventlist[] =
  49         {
  50                 I_OnPreCommand, I_OnGetServerDescription, I_OnUserInvite, I_OnPostLocalTopicChange,
  51                 I_OnWallops, I_OnUserNotice, I_OnUserMessage, I_OnBackgroundTimer,
  52                 I_OnUserJoin, I_OnChangeHost, I_OnChangeName, I_OnUserPart,
  53                 I_OnUserQuit, I_OnUserPostNick, I_OnUserKick, I_OnRemoteKill, I_OnRehash,
  54                 I_OnOper, I_OnAddLine, I_OnDelLine, I_ProtoSendMode, I_OnMode,
  55                 I_OnStats, I_ProtoSendMetaData, I_OnEvent, I_OnSetAway, I_OnPostCommand
  56         };
  57         ServerInstance->Modules->Attach(eventlist, this, 27);
  58
  59         delete ServerInstance->PI;
  60         ServerInstance->PI = new SpanningTreeProtocolInterface(this, Utils, ServerInstance);
  61
  62         for (std::vector<User*>::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
  63         {
  64                 ServerInstance->PI->Introduce(*i);
  65         }
  66 }
  67
  68 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
  69 {
  70         std::string Parent = Utils->TreeRoot->GetName();
  71         if (Current->GetParent())
  72         {
  73                 Parent = Current->GetParent()->GetName();
  74         }
  75         for (unsigned int q = 0; q < Current->ChildCount(); q++)
  76         {
  77                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str()))))
  78                 {
  79                         if (IS_OPER(user))
  80                         {
  81                                  ShowLinks(Current->GetChild(q),user,hops+1);
  82                         }
  83                 }
  84                 else
  85                 {
  86                         ShowLinks(Current->GetChild(q),user,hops+1);
  87                 }
  88         }
  89         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
  90         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!IS_OPER(user)))
  91                 return;
  92         /* Or if the server is hidden and they're not an oper */
  93         else if ((Current->Hidden) && (!IS_OPER(user)))
  94                 return;
  95
  96         user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick.c_str(),Current->GetName().c_str(),
  97                         (Utils->FlatLinks && (!IS_OPER(user))) ? ServerInstance->Config->ServerName : Parent.c_str(),
  98                         (Utils->FlatLinks && (!IS_OPER(user))) ? 0 : hops,
  99                         Current->GetDesc().c_str());
 100 }
 101
 102 int ModuleSpanningTree::CountLocalServs()
 103 {
 104         return Utils->TreeRoot->ChildCount();
 105 }
 106
 107 int ModuleSpanningTree::CountServs()
 108 {
 109         return Utils->serverlist.size();
 110 }
 111
 112 void ModuleSpanningTree::HandleLinks(const std::vector<std::string>& parameters, User* user)
 113 {
 114         ShowLinks(Utils->TreeRoot,user,0);
 115         user->WriteNumeric(365, "%s * :End of /LINKS list.",user->nick.c_str());
 116         return;
 117 }
 118
 119 void ModuleSpanningTree::HandleLusers(const std::vector<std::string>& parameters, User* user)
 120 {
 121         unsigned int n_users = ServerInstance->Users->UserCount();
 122
 123         /* Only update these when someone wants to see them, more efficient */
 124         if ((unsigned int)ServerInstance->Users->LocalUserCount() > max_local)
 125                 max_local = ServerInstance->Users->LocalUserCount();
 126         if (n_users > max_global)
 127                 max_global = n_users;
 128
 129         unsigned int ulined_count = 0;
 130         unsigned int ulined_local_count = 0;
 131
 132         /* If ulined are hidden and we're not an oper, count the number of ulined servers hidden,
 133          * locally and globally (locally means directly connected to us)
 134          */
 135         if ((Utils->HideULines) && (!IS_OPER(user)))
 136         {
 137                 for (server_hash::iterator q = Utils->serverlist.begin(); q != Utils->serverlist.end(); q++)
 138                 {
 139                         if (ServerInstance->ULine(q->second->GetName().c_str()))
 140                         {
 141                                 ulined_count++;
 142                                 if (q->second->GetParent() == Utils->TreeRoot)
 143                                         ulined_local_count++;
 144                         }
 145                 }
 146         }
 147         user->WriteNumeric(251, "%s :There are %d users and %d invisible on %d servers",user->nick.c_str(),
 148                         n_users-ServerInstance->Users->ModeCount('i'),
 149                         ServerInstance->Users->ModeCount('i'),
 150                         ulined_count ? this->CountServs() - ulined_count : this->CountServs());
 151
 152         if (ServerInstance->Users->OperCount())
 153                 user->WriteNumeric(252, "%s %d :operator(s) online",user->nick.c_str(),ServerInstance->Users->OperCount());
 154
 155         if (ServerInstance->Users->UnregisteredUserCount())
 156                 user->WriteNumeric(253, "%s %d :unknown connections",user->nick.c_str(),ServerInstance->Users->UnregisteredUserCount());
 157
 158         if (ServerInstance->ChannelCount())
 159                 user->WriteNumeric(254, "%s %ld :channels formed",user->nick.c_str(),ServerInstance->ChannelCount());
 160
 161         user->WriteNumeric(255, "%s :I have %d clients and %d servers",user->nick.c_str(),ServerInstance->Users->LocalUserCount(),ulined_local_count ? this->CountLocalServs() - ulined_local_count : this->CountLocalServs());
 162         user->WriteNumeric(265, "%s :Current Local Users: %d  Max: %d",user->nick.c_str(),ServerInstance->Users->LocalUserCount(),max_local);
 163         user->WriteNumeric(266, "%s :Current Global Users: %d  Max: %d",user->nick.c_str(),n_users,max_global);
 164         return;
 165 }
 166
 167 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 168 {
 169         time_t mins_up = secs / 60;
 170         time_t hours_up = mins_up / 60;
 171         time_t days_up = hours_up / 24;
 172         secs = secs % 60;
 173         mins_up = mins_up % 60;
 174         hours_up = hours_up % 24;
 175         return ((days_up ? (ConvToStr(days_up) + "d") : std::string(""))
 176                         + (hours_up ? (ConvToStr(hours_up) + "h") : std::string(""))
 177                         + (mins_up ? (ConvToStr(mins_up) + "m") : std::string(""))
 178                         + ConvToStr(secs) + "s");
 179 }
 180
 181 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 182 {
 183         /*
 184          * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 185          * This prevents lost REMOTECONNECT notices
 186          */
 187         timeval t;
 188         gettimeofday(&t, NULL);
 189         long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
 190
 191         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 192         {
 193                 TreeServer *s = i->second;
 194
 195                 if (s->bursting)
 196                 {
 197                         unsigned long bursttime = ts - s->StartBurst;
 198                         if (bursttime > 60000) // A minute
 199                         {
 200                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not finished burst, forcing end of burst.", s->GetName().c_str());
 201                                 s->FinishBurst();
 202                         }
 203                 }
 204
 205                 // Now do PING checks on all servers
 206                 TreeServer *mts = Utils->BestRouteTo(s->GetID());
 207
 208                 if (mts)
 209                 {
 210                         // Only ping if this server needs one
 211                         if (curtime >= s->NextPingTime())
 212                         {
 213                                 // And if they answered the last
 214                                 if (s->AnsweredLastPing())
 215                                 {
 216                                         // They did, send a ping to them
 217                                         s->SetNextPingTime(curtime + Utils->PingFreq);
 218                                         TreeSocket *tsock = mts->GetSocket();
 219
 220                                         // ... if we can find a proper route to them
 221                                         if (tsock)
 222                                         {
 223                                                 tsock->WriteLine(std::string(":") + ServerInstance->Config->GetSID() + " PING " +
 224                                                                 ServerInstance->Config->GetSID() + " " + s->GetID());
 225                                                 s->LastPingMsec = ts;
 226                                         }
 227                                 }
 228                                 else
 229                                 {
 230                                         // They didn't answer the last ping, if they are locally connected, get rid of them.
 231                                         TreeSocket *sock = s->GetSocket();
 232                                         if (sock)
 233                                         {
 234                                                 sock->SendError("Ping timeout");
 235                                                 sock->Squit(s,"Ping timeout");
 236                                                 ServerInstance->SE->DelFd(sock);
 237                                                 sock->Close();
 238                                                 return;
 239                                         }
 240                                 }
 241                         }
 242
 243                         // If warn on ping enabled and not warned and the difference is sufficient and they didn't answer the last ping...
 244                         if ((Utils->PingWarnTime) && (!s->Warned) && (curtime >= s->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!s->AnsweredLastPing()))
 245                         {
 246                                 /* The server hasnt responded, send a warning to opers */
 247                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", s->GetName().c_str(), Utils->PingWarnTime);
 248                                 s->Warned = true;
 249                         }
 250                 }
 251         }
 252 }
 253
 254 void ModuleSpanningTree::ConnectServer(Link* x)
 255 {
 256         bool ipvalid = true;
 257         QueryType start_type = DNS_QUERY_A;
 258 #ifdef IPV6
 259         start_type = DNS_QUERY_AAAA;
 260         if (strchr(x->IPAddr.c_str(),':'))
 261         {
 262                 in6_addr n;
 263                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 264                         ipvalid = false;
 265         }
 266         else
 267 #endif
 268         {
 269                 in_addr n;
 270                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 271                         ipvalid = false;
 272         }
 273
 274         /* Do we already have an IP? If so, no need to resolve it. */
 275         if (ipvalid)
 276         {
 277                 /* Gave a hook, but it wasnt one we know */
 278                 if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
 279                         return;
 280                 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()]);
 281                 if (newsocket->GetFd() > -1)
 282                 {
 283                         /* Handled automatically on success */
 284                 }
 285                 else
 286                 {
 287                         RemoteMessage(NULL, "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
 288                         if (ServerInstance->SocketCull.find(newsocket) == ServerInstance->SocketCull.end())
 289                                 ServerInstance->SocketCull[newsocket] = newsocket;
 290                         Utils->DoFailOver(x);
 291                 }
 292         }
 293         else
 294         {
 295                 try
 296                 {
 297                         bool cached;
 298                         ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x, cached, start_type);
 299                         ServerInstance->AddResolver(snr, cached);
 300                 }
 301                 catch (ModuleException& e)
 302                 {
 303                         RemoteMessage(NULL, "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 304                         Utils->DoFailOver(x);
 305                 }
 306         }
 307 }
 308
 309 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 310 {
 311         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 312         {
 313                 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
 314                 {
 315                         x->NextConnectTime = curtime + x->AutoConnect;
 316                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 317                         if (x->FailOver.length())
 318                         {
 319                                 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
 320                                 if (CheckFailOver)
 321                                 {
 322                                         /* The failover for this server is currently a member of the network.
 323                                          * The failover probably succeeded, where the main link did not.
 324                                          * Don't try the main link until the failover is gone again.
 325                                          */
 326                                         continue;
 327                                 }
 328                         }
 329                         if (!CheckDupe)
 330                         {
 331                                 // an autoconnected server is not connected. Check if its time to connect it
 332                                 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
 333                                 this->ConnectServer(&(*x));
 334                         }
 335                 }
 336         }
 337 }
 338
 339 int ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 340 {
 341         // we've already checked if pcnt > 0, so this is safe
 342         TreeServer* found = Utils->FindServerMask(parameters[0]);
 343         if (found)
 344         {
 345                 std::string Version = found->GetVersion();
 346                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 347                 if (found == Utils->TreeRoot)
 348                 {
 349                         ServerInstance->Config->Send005(user);
 350                 }
 351         }
 352         else
 353         {
 354                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 355         }
 356         return 1;
 357 }
 358
 359 /* This method will attempt to get a link message out to as many people as is required.
 360  * If a user is provided, and that user is local, then the user is sent the message using
 361  * WriteServ (they are the local initiator of that message). If the user is remote, they are
 362  * sent that message remotely via PUSH.
 363  * If the user is NULL, then the notice is sent locally via WriteToSnoMask with snomask 'l',
 364  * and remotely via SNONOTICE with mask 'l'.
 365  */
 366 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 367 {
 368         /* This could cause an infinite loop, because DoOneToMany() will, on error,
 369          * call TreeSocket::OnError(), which in turn will call this function to
 370          * notify everyone of the error. So, drop any messages that are generated
 371          * during the sending of another message. -Special */
 372         static bool SendingRemoteMessage = false;
 373         if (SendingRemoteMessage)
 374                 return;
 375         SendingRemoteMessage = true;
 376
 377         char text[MAXBUF];
 378         va_list argsPtr;
 379
 380         va_start(argsPtr, format);
 381         vsnprintf(text, MAXBUF, format, argsPtr);
 382         va_end(argsPtr);
 383
 384         if (!user)
 385         {
 386                 /* No user, target it generically at everyone */
 387                 ServerInstance->SNO->WriteToSnoMask('l', "%s", text);
 388         }
 389         else
 390         {
 391                 if (IS_LOCAL(user))
 392                         user->WriteServ("NOTICE %s :%s", user->nick.c_str(), text);
 393                 else
 394                         ServerInstance->PI->SendUserNotice(user, text);
 395         }
 396
 397         SendingRemoteMessage = false;
 398 }
 399
 400 int ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 401 {
 402         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 403         {
 404                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 405                 {
 406                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 407                         if (!CheckDupe)
 408                         {
 409                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 410                                 ConnectServer(&(*x));
 411                                 return 1;
 412                         }
 413                         else
 414                         {
 415                                 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());
 416                                 return 1;
 417                         }
 418                 }
 419         }
 420         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 421         return 1;
 422 }
 423
 424 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 425 {
 426         TreeServer* s = Utils->FindServer(servername);
 427         if (s)
 428         {
 429                 description = s->GetDesc();
 430         }
 431 }
 432
 433 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 434 {
 435         if (IS_LOCAL(source))
 436         {
 437                 std::deque<std::string> params;
 438                 params.push_back(dest->uuid);
 439                 params.push_back(channel->name);
 440                 params.push_back(ConvToStr(expiry));
 441                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 442         }
 443 }
 444
 445 void ModuleSpanningTree::OnPostLocalTopicChange(User* user, Channel* chan, const std::string &topic)
 446 {
 447         std::deque<std::string> params;
 448         params.push_back(chan->name);
 449         params.push_back(":"+topic);
 450         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 451 }
 452
 453 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 454 {
 455         if (IS_LOCAL(user))
 456         {
 457                 std::deque<std::string> params;
 458                 params.push_back(":"+text);
 459                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 460         }
 461 }
 462
 463 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 464 {
 465         /* Server origin */
 466         if (user == NULL)
 467                 return;
 468
 469         if (target_type == TYPE_USER)
 470         {
 471                 User* d = (User*)dest;
 472                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 473                 {
 474                         std::deque<std::string> params;
 475                         params.clear();
 476                         params.push_back(d->uuid);
 477                         params.push_back(":"+text);
 478                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 479                 }
 480         }
 481         else if (target_type == TYPE_CHANNEL)
 482         {
 483                 if (IS_LOCAL(user))
 484                 {
 485                         Channel *c = (Channel*)dest;
 486                         if (c)
 487                         {
 488                                 std::string cname = c->name;
 489                                 if (status)
 490                                         cname = status + cname;
 491                                 TreeServerList list;
 492                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 493                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 494                                 {
 495                                         TreeSocket* Sock = i->second->GetSocket();
 496                                         if (Sock)
 497                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 498                                 }
 499                         }
 500                 }
 501         }
 502         else if (target_type == TYPE_SERVER)
 503         {
 504                 if (IS_LOCAL(user))
 505                 {
 506                         char* target = (char*)dest;
 507                         std::deque<std::string> par;
 508                         par.push_back(target);
 509                         par.push_back(":"+text);
 510                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 511                 }
 512         }
 513 }
 514
 515 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 516 {
 517         /* Server origin */
 518         if (user == NULL)
 519                 return;
 520
 521         if (target_type == TYPE_USER)
 522         {
 523                 // route private messages which are targetted at clients only to the server
 524                 // which needs to receive them
 525                 User* d = (User*)dest;
 526                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 527                 {
 528                         std::deque<std::string> params;
 529                         params.clear();
 530                         params.push_back(d->uuid);
 531                         params.push_back(":"+text);
 532                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 533                 }
 534         }
 535         else if (target_type == TYPE_CHANNEL)
 536         {
 537                 if (IS_LOCAL(user))
 538                 {
 539                         Channel *c = (Channel*)dest;
 540                         if (c)
 541                         {
 542                                 std::string cname = c->name;
 543                                 if (status)
 544                                         cname = status + cname;
 545                                 TreeServerList list;
 546                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 547                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 548                                 {
 549                                         TreeSocket* Sock = i->second->GetSocket();
 550                                         if (Sock)
 551                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 552                                 }
 553                         }
 554                 }
 555         }
 556         else if (target_type == TYPE_SERVER)
 557         {
 558                 if (IS_LOCAL(user))
 559                 {
 560                         char* target = (char*)dest;
 561                         std::deque<std::string> par;
 562                         par.push_back(target);
 563                         par.push_back(":"+text);
 564                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 565                 }
 566         }
 567 }
 568
 569 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 570 {
 571         AutoConnectServers(curtime);
 572         DoPingChecks(curtime);
 573 }
 574
 575 void ModuleSpanningTree::OnUserJoin(User* user, Channel* channel, bool sync, bool &silent)
 576 {
 577         // Only do this for local users
 578         if (IS_LOCAL(user))
 579         {
 580                 std::deque<std::string> params;
 581                 // set up their permissions and the channel TS with FJOIN.
 582                 // All users are FJOINed now, because a module may specify
 583                 // new joining permissions for the user.
 584                 params.push_back(channel->name);
 585                 params.push_back(ConvToStr(channel->age));
 586                 params.push_back(std::string("+") + channel->ChanModes(true));
 587                 params.push_back(ServerInstance->Modes->ModeString(user, channel, false)+","+std::string(user->uuid));
 588                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 589         }
 590 }
 591
 592 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 593 {
 594         // only occurs for local clients
 595         if (user->registered != REG_ALL)
 596                 return;
 597         std::deque<std::string> params;
 598         params.push_back(newhost);
 599         Utils->DoOneToMany(user->uuid,"FHOST",params);
 600 }
 601
 602 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 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(gecos);
 609         Utils->DoOneToMany(user->uuid,"FNAME",params);
 610 }
 611
 612 void ModuleSpanningTree::OnUserPart(User* user, Channel* channel,  std::string &partmessage, bool &silent)
 613 {
 614         if (IS_LOCAL(user))
 615         {
 616                 std::deque<std::string> params;
 617                 params.push_back(channel->name);
 618                 if (!partmessage.empty())
 619                         params.push_back(":"+partmessage);
 620                 Utils->DoOneToMany(user->uuid,"PART",params);
 621         }
 622 }
 623
 624 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 625 {
 626         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 627         {
 628                 std::deque<std::string> params;
 629
 630                 if (oper_message != reason)
 631                 {
 632                         params.push_back(":"+oper_message);
 633                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 634                 }
 635                 params.clear();
 636                 params.push_back(":"+reason);
 637                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 638         }
 639
 640         // Regardless, We need to modify the user Counts..
 641         TreeServer* SourceServer = Utils->FindServer(user->server);
 642         if (SourceServer)
 643         {
 644                 SourceServer->SetUserCount(-1); // decrement by 1
 645         }
 646 }
 647
 648 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 649 {
 650         if (IS_LOCAL(user))
 651         {
 652                 std::deque<std::string> params;
 653                 params.push_back(user->nick);
 654
 655                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 656                  */
 657                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 658                         user->age = ServerInstance->Time();
 659
 660                 params.push_back(ConvToStr(user->age));
 661                 Utils->DoOneToMany(user->uuid,"NICK",params);
 662         }
 663 }
 664
 665 void ModuleSpanningTree::OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
 666 {
 667         if ((source) && (IS_LOCAL(source)))
 668         {
 669                 std::deque<std::string> params;
 670                 params.push_back(chan->name);
 671                 params.push_back(user->uuid);
 672                 params.push_back(":"+reason);
 673                 Utils->DoOneToMany(source->uuid,"KICK",params);
 674         }
 675         else if (!source)
 676         {
 677                 std::deque<std::string> params;
 678                 params.push_back(chan->name);
 679                 params.push_back(user->uuid);
 680                 params.push_back(":"+reason);
 681                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 682         }
 683 }
 684
 685 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 686 {
 687         std::deque<std::string> params;
 688         params.push_back(":"+reason);
 689         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 690         params.clear();
 691         params.push_back(dest->uuid);
 692         params.push_back(":"+reason);
 693         dest->SetOperQuit(operreason);
 694         Utils->DoOneToMany(source->uuid,"KILL",params);
 695 }
 696
 697 void ModuleSpanningTree::OnRehash(User* user, const std::string &parameter)
 698 {
 699         ServerInstance->Logs->Log("remoterehash", DEBUG, "called with param %s", parameter.c_str());
 700
 701         // Send out to other servers
 702         if (!parameter.empty() && parameter[0] != '-')
 703         {
 704                 ServerInstance->Logs->Log("remoterehash", DEBUG, "sending out lol");
 705                 std::deque<std::string> params;
 706                 params.push_back(parameter);
 707                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 708         }
 709
 710         // Re-read config stuff
 711         Utils->ReadConfiguration(true);
 712 }
 713
 714 // note: the protocol does not allow direct umode +o except
 715 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 716 // locally.
 717 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 718 {
 719         if (IS_LOCAL(user))
 720         {
 721                 std::deque<std::string> params;
 722                 params.push_back(opertype);
 723                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 724         }
 725 }
 726
 727 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 728 {
 729         if (!x->IsBurstable())
 730                 return;
 731
 732         char data[MAXBUF];
 733         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
 734         ServerInstance->Config->ServerName, (unsigned long)x->set_time, (unsigned long)x->duration, x->reason);
 735         std::deque<std::string> params;
 736         params.push_back(data);
 737
 738         if (!user)
 739         {
 740                 /* Server-set lines */
 741                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 742         }
 743         else if (IS_LOCAL(user))
 744         {
 745                 /* User-set lines */
 746                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 747         }
 748 }
 749
 750 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 751 {
 752         if (x->type == "K")
 753                 return;
 754
 755         char data[MAXBUF];
 756         snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
 757         std::deque<std::string> params;
 758         params.push_back(data);
 759
 760         if (!user)
 761         {
 762                 /* Server-unset lines */
 763                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 764         }
 765         else if (IS_LOCAL(user))
 766         {
 767                 /* User-unset lines */
 768                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 769         }
 770 }
 771
 772 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const std::string &text)
 773 {
 774         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 775         {
 776                 std::deque<std::string> params;
 777                 std::string command;
 778                 std::string output_text;
 779
 780                 ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, text, output_text);
 781
 782                 if (target_type == TYPE_USER)
 783                 {
 784                         User* u = (User*)dest;
 785                         params.push_back(u->uuid);
 786                         params.push_back(output_text);
 787                         command = "MODE";
 788                 }
 789                 else
 790                 {
 791                         Channel* c = (Channel*)dest;
 792                         params.push_back(c->name);
 793                         params.push_back(ConvToStr(c->age));
 794                         params.push_back(output_text);
 795                         command = "FMODE";
 796                 }
 797
 798                 Utils->DoOneToMany(user->uuid, command, params);
 799         }
 800 }
 801
 802 int ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 803 {
 804         if (IS_LOCAL(user))
 805         {
 806                 if (awaymsg.empty())
 807                 {
 808                         std::deque<std::string> params;
 809                         params.clear();
 810                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 811                 }
 812                 else
 813                 {
 814                         std::deque<std::string> params;
 815                         params.push_back(":" + awaymsg);
 816                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 817                 }
 818         }
 819
 820         return 0;
 821 }
 822
 823 void ModuleSpanningTree::ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
 824 {
 825         TreeSocket* s = (TreeSocket*)opaque;
 826         std::string output_text;
 827
 828         ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, modeline, output_text);
 829
 830         if (target)
 831         {
 832                 if (target_type == TYPE_USER)
 833                 {
 834                         User* u = (User*)target;
 835                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+u->uuid+" "+ConvToStr(u->age)+" "+output_text);
 836                 }
 837                 else
 838                 {
 839                         Channel* c = (Channel*)target;
 840                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 841                 }
 842         }
 843 }
 844
 845 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
 846 {
 847         TreeSocket* s = (TreeSocket*)opaque;
 848         if (target)
 849         {
 850                 if (target_type == TYPE_USER)
 851                 {
 852                         User* u = (User*)target;
 853                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 854                 }
 855                 else if (target_type == TYPE_CHANNEL)
 856                 {
 857                         Channel* c = (Channel*)target;
 858                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 859                 }
 860         }
 861         if (target_type == TYPE_OTHER)
 862         {
 863                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 864         }
 865 }
 866
 867 void ModuleSpanningTree::OnEvent(Event* event)
 868 {
 869         if ((event->GetEventID() == "send_encap") || (event->GetEventID() == "send_metadata") || (event->GetEventID() == "send_topic") || (event->GetEventID() == "send_mode") || (event->GetEventID() == "send_mode_explicit") || (event->GetEventID() == "send_opers")
 870                 || (event->GetEventID() == "send_modeset") || (event->GetEventID() == "send_snoset") || (event->GetEventID() == "send_push"))
 871         {
 872                 ServerInstance->Logs->Log("m_spanningtree", DEBUG, "WARNING: Deprecated use of old 1.1 style m_spanningtree event ignored, type '"+event->GetEventID()+"'!");
 873         }
 874 }
 875
 876 ModuleSpanningTree::~ModuleSpanningTree()
 877 {
 878         /* This will also free the listeners */
 879         delete ServerInstance->PI;
 880         ServerInstance->PI = new ProtocolInterface(ServerInstance);
 881
 882         delete Utils;
 883
 884         ServerInstance->Timers->DelTimer(RefreshTimer);
 885
 886         ServerInstance->Modules->DoneWithInterface("BufferedSocketHook");
 887 }
 888
 889 Version ModuleSpanningTree::GetVersion()
 890 {
 891         return Version("$Id$", VF_VENDOR, API_VERSION);
 892 }
 893
 894 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 895  * so that any activity it sees is FINAL, e.g. we arent going to send out
 896  * a NICK message before m_cloaking has finished putting the +x on the user,
 897  * etc etc.
 898  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 899  * the module call queue.
 900  */
 901 void ModuleSpanningTree::Prioritize()
 902 {
 903         ServerInstance->Modules->SetPriority(this, PRIO_LAST);
 904 }
 905
 906 MODULE_INIT(ModuleSpanningTree)