src/modules/m_spanningtree/main.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
   6  * See: http://wiki.inspircd.org/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 "socket.h"
  18 #include "xline.h"
  19 #include "../transport.h"
  20
  21 #include "cachetimer.h"
  22 #include "resolvers.h"
  23 #include "main.h"
  24 #include "utils.h"
  25 #include "treeserver.h"
  26 #include "link.h"
  27 #include "treesocket.h"
  28 #include "rconnect.h"
  29 #include "rsquit.h"
  30 #include "protocolinterface.h"
  31
  32 /* $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 */
  33
  34 ModuleSpanningTree::ModuleSpanningTree(InspIRCd* Me)
  35         : Module(Me), max_local(0), max_global(0)
  36 {
  37         ServerInstance->Modules->UseInterface("BufferedSocketHook");
  38         Utils = new SpanningTreeUtilities(ServerInstance, this);
  39         command_rconnect = new CommandRConnect(this, Utils);
  40         ServerInstance->AddCommand(command_rconnect);
  41         command_rsquit = new CommandRSQuit(this, Utils);
  42         ServerInstance->AddCommand(command_rsquit);
  43         RefreshTimer = new CacheRefreshTimer(ServerInstance, Utils);
  44         ServerInstance->Timers->AddTimer(RefreshTimer);
  45
  46         Implementation eventlist[] =
  47         {
  48                 I_OnPreCommand, I_OnGetServerDescription, I_OnUserInvite, I_OnPostTopicChange,
  49                 I_OnWallops, I_OnUserNotice, I_OnUserMessage, I_OnBackgroundTimer, I_OnUserJoin,
  50                 I_OnChangeLocalUserHost, I_OnChangeName, I_OnChangeIdent, I_OnUserPart, I_OnUnloadModule,
  51                 I_OnUserQuit, I_OnUserPostNick, I_OnUserKick, I_OnRemoteKill, I_OnRehash, I_OnPreRehash,
  52                 I_OnOper, I_OnAddLine, I_OnDelLine, I_OnMode, I_OnLoadModule, I_OnStats, I_OnEvent,
  53                 I_OnSetAway, I_OnPostCommand, I_OnUserConnect
  54         };
  55         ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
  56
  57         delete ServerInstance->PI;
  58         ServerInstance->PI = new SpanningTreeProtocolInterface(this, Utils, ServerInstance);
  59         loopCall = false;
  60
  61         // update our local user count
  62         Utils->TreeRoot->SetUserCount(ServerInstance->Users->local_users.size());
  63 }
  64
  65 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
  66 {
  67         std::string Parent = Utils->TreeRoot->GetName();
  68         if (Current->GetParent())
  69         {
  70                 Parent = Current->GetParent()->GetName();
  71         }
  72         for (unsigned int q = 0; q < Current->ChildCount(); q++)
  73         {
  74                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str()))))
  75                 {
  76                         if (IS_OPER(user))
  77                         {
  78                                  ShowLinks(Current->GetChild(q),user,hops+1);
  79                         }
  80                 }
  81                 else
  82                 {
  83                         ShowLinks(Current->GetChild(q),user,hops+1);
  84                 }
  85         }
  86         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
  87         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!IS_OPER(user)))
  88                 return;
  89         /* Or if the server is hidden and they're not an oper */
  90         else if ((Current->Hidden) && (!IS_OPER(user)))
  91                 return;
  92
  93         user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick.c_str(),Current->GetName().c_str(),
  94                         (Utils->FlatLinks && (!IS_OPER(user))) ? ServerInstance->Config->ServerName : Parent.c_str(),
  95                         (Utils->FlatLinks && (!IS_OPER(user))) ? 0 : hops,
  96                         Current->GetDesc().c_str());
  97 }
  98
  99 int ModuleSpanningTree::CountLocalServs()
 100 {
 101         return Utils->TreeRoot->ChildCount();
 102 }
 103
 104 int ModuleSpanningTree::CountServs()
 105 {
 106         return Utils->serverlist.size();
 107 }
 108
 109 void ModuleSpanningTree::HandleLinks(const std::vector<std::string>& parameters, User* user)
 110 {
 111         ShowLinks(Utils->TreeRoot,user,0);
 112         user->WriteNumeric(365, "%s * :End of /LINKS list.",user->nick.c_str());
 113         return;
 114 }
 115
 116 void ModuleSpanningTree::HandleLusers(const std::vector<std::string>& parameters, User* user)
 117 {
 118         unsigned int n_users = ServerInstance->Users->UserCount();
 119
 120         /* Only update these when someone wants to see them, more efficient */
 121         if ((unsigned int)ServerInstance->Users->LocalUserCount() > max_local)
 122                 max_local = ServerInstance->Users->LocalUserCount();
 123         if (n_users > max_global)
 124                 max_global = n_users;
 125
 126         unsigned int ulined_count = 0;
 127         unsigned int ulined_local_count = 0;
 128
 129         /* If ulined are hidden and we're not an oper, count the number of ulined servers hidden,
 130          * locally and globally (locally means directly connected to us)
 131          */
 132         if ((Utils->HideULines) && (!IS_OPER(user)))
 133         {
 134                 for (server_hash::iterator q = Utils->serverlist.begin(); q != Utils->serverlist.end(); q++)
 135                 {
 136                         if (ServerInstance->ULine(q->second->GetName().c_str()))
 137                         {
 138                                 ulined_count++;
 139                                 if (q->second->GetParent() == Utils->TreeRoot)
 140                                         ulined_local_count++;
 141                         }
 142                 }
 143         }
 144         user->WriteNumeric(251, "%s :There are %d users and %d invisible on %d servers",user->nick.c_str(),
 145                         n_users-ServerInstance->Users->ModeCount('i'),
 146                         ServerInstance->Users->ModeCount('i'),
 147                         ulined_count ? this->CountServs() - ulined_count : this->CountServs());
 148
 149         if (ServerInstance->Users->OperCount())
 150                 user->WriteNumeric(252, "%s %d :operator(s) online",user->nick.c_str(),ServerInstance->Users->OperCount());
 151
 152         if (ServerInstance->Users->UnregisteredUserCount())
 153                 user->WriteNumeric(253, "%s %d :unknown connections",user->nick.c_str(),ServerInstance->Users->UnregisteredUserCount());
 154
 155         if (ServerInstance->ChannelCount())
 156                 user->WriteNumeric(254, "%s %ld :channels formed",user->nick.c_str(),ServerInstance->ChannelCount());
 157
 158         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());
 159         user->WriteNumeric(265, "%s :Current Local Users: %d  Max: %d",user->nick.c_str(),ServerInstance->Users->LocalUserCount(),max_local);
 160         user->WriteNumeric(266, "%s :Current Global Users: %d  Max: %d",user->nick.c_str(),n_users,max_global);
 161         return;
 162 }
 163
 164 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 165 {
 166         time_t mins_up = secs / 60;
 167         time_t hours_up = mins_up / 60;
 168         time_t days_up = hours_up / 24;
 169         secs = secs % 60;
 170         mins_up = mins_up % 60;
 171         hours_up = hours_up % 24;
 172         return ((days_up ? (ConvToStr(days_up) + "d") : std::string(""))
 173                         + (hours_up ? (ConvToStr(hours_up) + "h") : std::string(""))
 174                         + (mins_up ? (ConvToStr(mins_up) + "m") : std::string(""))
 175                         + ConvToStr(secs) + "s");
 176 }
 177
 178 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 179 {
 180         /*
 181          * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 182          * This prevents lost REMOTECONNECT notices
 183          */
 184         timeval t;
 185         gettimeofday(&t, NULL);
 186         long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
 187
 188         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 189         {
 190                 TreeServer *s = i->second;
 191
 192                 // Fix for bug #792, do not ping servers that are not connected yet!
 193                 // Remote servers have Socket == NULL and local connected servers have
 194                 // Socket->LinkState == CONNECTED
 195                 if (s->GetSocket() && s->GetSocket()->GetLinkState() != CONNECTED)
 196                         continue;
 197
 198                 // Now do PING checks on all servers
 199                 TreeServer *mts = Utils->BestRouteTo(s->GetID());
 200
 201                 if (mts)
 202                 {
 203                         // Only ping if this server needs one
 204                         if (curtime >= s->NextPingTime())
 205                         {
 206                                 // And if they answered the last
 207                                 if (s->AnsweredLastPing())
 208                                 {
 209                                         // They did, send a ping to them
 210                                         s->SetNextPingTime(curtime + Utils->PingFreq);
 211                                         TreeSocket *tsock = mts->GetSocket();
 212
 213                                         // ... if we can find a proper route to them
 214                                         if (tsock)
 215                                         {
 216                                                 tsock->WriteLine(std::string(":") + ServerInstance->Config->GetSID() + " PING " +
 217                                                                 ServerInstance->Config->GetSID() + " " + s->GetID());
 218                                                 s->LastPingMsec = ts;
 219                                         }
 220                                 }
 221                                 else
 222                                 {
 223                                         // They didn't answer the last ping, if they are locally connected, get rid of them.
 224                                         TreeSocket *sock = s->GetSocket();
 225                                         if (sock)
 226                                         {
 227                                                 sock->SendError("Ping timeout");
 228                                                 sock->Squit(s,"Ping timeout");
 229                                                 ServerInstance->SE->DelFd(sock);
 230                                                 sock->Close();
 231                                                 return;
 232                                         }
 233                                 }
 234                         }
 235
 236                         // If warn on ping enabled and not warned and the difference is sufficient and they didn't answer the last ping...
 237                         if ((Utils->PingWarnTime) && (!s->Warned) && (curtime >= s->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!s->AnsweredLastPing()))
 238                         {
 239                                 /* The server hasnt responded, send a warning to opers */
 240                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", s->GetName().c_str(), Utils->PingWarnTime);
 241                                 s->Warned = true;
 242                         }
 243                 }
 244         }
 245 }
 246
 247 void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
 248 {
 249         bool ipvalid = true;
 250
 251         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 252         {
 253                 ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
 254                 return;
 255         }
 256
 257         QueryType start_type = DNS_QUERY_A;
 258         start_type = DNS_QUERY_AAAA;
 259         if (strchr(x->IPAddr.c_str(),':'))
 260         {
 261                 in6_addr n;
 262                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 263                         ipvalid = false;
 264         }
 265         else
 266         {
 267                 in_addr n;
 268                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 269                         ipvalid = false;
 270         }
 271
 272         /* Do we already have an IP? If so, no need to resolve it. */
 273         if (ipvalid)
 274         {
 275                 /* Gave a hook, but it wasnt one we know */
 276                 if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
 277                         return;
 278                 TreeSocket* newsocket = new TreeSocket(Utils, x->IPAddr,x->Port, x->Timeout ? x->Timeout : 10,x->Name.c_str(), x->Bind, y, x->Hook.empty() ? NULL : Utils->hooks[x->Hook.c_str()]);
 279                 if (newsocket->GetFd() > -1)
 280                 {
 281                         /* Handled automatically on success */
 282                 }
 283                 else
 284                 {
 285                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
 286                         ServerInstance->GlobalCulls.AddItem(newsocket);
 287                         Utils->DoFailOver(y);
 288                 }
 289         }
 290         else
 291         {
 292                 try
 293                 {
 294                         bool cached;
 295                         ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x, cached, start_type, y);
 296                         ServerInstance->AddResolver(snr, cached);
 297                 }
 298                 catch (ModuleException& e)
 299                 {
 300                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 301                         Utils->DoFailOver(y);
 302                 }
 303         }
 304 }
 305
 306 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 307 {
 308         for (std::vector<Autoconnect>::iterator x = Utils->AutoconnectBlocks.begin(); x < Utils->AutoconnectBlocks.end(); ++x)
 309         {
 310                 if (curtime >= x->NextConnectTime)
 311                 {
 312                         x->NextConnectTime = curtime + x->Period;
 313                         TreeServer* CheckDupe = Utils->FindServer(x->Server.c_str());
 314                         Link* y = Utils->FindLink(x->Server);
 315                         if (x->FailOver.length())
 316                         {
 317                                 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
 318                                 if (CheckFailOver)
 319                                 {
 320                                         /* The failover for this server is currently a member of the network.
 321                                          * The failover probably succeeded, where the main link did not.
 322                                          * Don't try the main link until the failover is gone again.
 323                                          */
 324                                         continue;
 325                                 }
 326                         }
 327                         if (!CheckDupe)
 328                         {
 329                                 // an autoconnected server is not connected. Check if its time to connect it
 330                                 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",y->Name.c_str(),x->Period);
 331                                 this->ConnectServer(&(*y), &(*x));
 332                         }
 333                 }
 334         }
 335 }
 336
 337 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 338 {
 339         std::vector<Autoconnect*> failovers;
 340         for (std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin(); i != Utils->timeoutlist.end(); i++)
 341         {
 342                 TreeSocket* s = i->first;
 343                 std::pair<std::string, int> p = i->second;
 344                 if (curtime > s->age + p.second)
 345                 {
 346                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 347                         failovers.push_back(s->myautoconnect);
 348                         ServerInstance->SE->DelFd(s);
 349                         s->Close();
 350                 }
 351         }
 352         /* Trigger failover for each timed out socket */
 353         for (std::vector<Autoconnect*>::const_iterator n = failovers.begin(); n != failovers.end(); ++n)
 354         {
 355                 Utils->DoFailOver(*n);
 356         }
 357 }
 358
 359 ModResult ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 360 {
 361         // we've already checked if pcnt > 0, so this is safe
 362         TreeServer* found = Utils->FindServerMask(parameters[0]);
 363         if (found)
 364         {
 365                 std::string Version = found->GetVersion();
 366                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 367                 if (found == Utils->TreeRoot)
 368                 {
 369                         ServerInstance->Config->Send005(user);
 370                 }
 371         }
 372         else
 373         {
 374                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 375         }
 376         return MOD_RES_DENY;
 377 }
 378
 379 /* This method will attempt to get a message to a remote user.
 380  */
 381 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 382 {
 383         char text[MAXBUF];
 384         va_list argsPtr;
 385
 386         va_start(argsPtr, format);
 387         vsnprintf(text, MAXBUF, format, argsPtr);
 388         va_end(argsPtr);
 389
 390         if (IS_LOCAL(user))
 391                 user->WriteServ("NOTICE %s :%s", user->nick.c_str(), text);
 392         else
 393                 ServerInstance->PI->SendUserNotice(user, text);
 394 }
 395
 396 ModResult ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 397 {
 398         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 399         {
 400                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 401                 {
 402                         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 403                         {
 404                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
 405                                 return MOD_RES_DENY;
 406                         }
 407
 408                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 409                         if (!CheckDupe)
 410                         {
 411                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 412                                 ConnectServer(&(*x), NULL);
 413                                 return MOD_RES_DENY;
 414                         }
 415                         else
 416                         {
 417                                 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());
 418                                 return MOD_RES_DENY;
 419                         }
 420                 }
 421         }
 422         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 423         return MOD_RES_DENY;
 424 }
 425
 426 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 427 {
 428         TreeServer* s = Utils->FindServer(servername);
 429         if (s)
 430         {
 431                 description = s->GetDesc();
 432         }
 433 }
 434
 435 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 436 {
 437         if (IS_LOCAL(source))
 438         {
 439                 parameterlist params;
 440                 params.push_back(dest->uuid);
 441                 params.push_back(channel->name);
 442                 params.push_back(ConvToStr(expiry));
 443                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 444         }
 445 }
 446
 447 void ModuleSpanningTree::OnPostTopicChange(User* user, Channel* chan, const std::string &topic)
 448 {
 449         // Drop remote events on the floor.
 450         if (!IS_LOCAL(user))
 451                 return;
 452
 453         parameterlist params;
 454         params.push_back(chan->name);
 455         params.push_back(":"+topic);
 456         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 457 }
 458
 459 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 460 {
 461         if (IS_LOCAL(user))
 462         {
 463                 parameterlist params;
 464                 params.push_back(":"+text);
 465                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 466         }
 467 }
 468
 469 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 470 {
 471         /* Server origin */
 472         if (user == NULL)
 473                 return;
 474
 475         if (target_type == TYPE_USER)
 476         {
 477                 User* d = (User*)dest;
 478                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 479                 {
 480                         parameterlist params;
 481                         params.push_back(d->uuid);
 482                         params.push_back(":"+text);
 483                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 484                 }
 485         }
 486         else if (target_type == TYPE_CHANNEL)
 487         {
 488                 if (IS_LOCAL(user))
 489                 {
 490                         Channel *c = (Channel*)dest;
 491                         if (c)
 492                         {
 493                                 std::string cname = c->name;
 494                                 if (status)
 495                                         cname = status + cname;
 496                                 TreeServerList list;
 497                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 498                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 499                                 {
 500                                         TreeSocket* Sock = i->second->GetSocket();
 501                                         if (Sock)
 502                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 503                                 }
 504                         }
 505                 }
 506         }
 507         else if (target_type == TYPE_SERVER)
 508         {
 509                 if (IS_LOCAL(user))
 510                 {
 511                         char* target = (char*)dest;
 512                         parameterlist par;
 513                         par.push_back(target);
 514                         par.push_back(":"+text);
 515                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 516                 }
 517         }
 518 }
 519
 520 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 521 {
 522         /* Server origin */
 523         if (user == NULL)
 524                 return;
 525
 526         if (target_type == TYPE_USER)
 527         {
 528                 // route private messages which are targetted at clients only to the server
 529                 // which needs to receive them
 530                 User* d = (User*)dest;
 531                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 532                 {
 533                         parameterlist params;
 534                         params.push_back(d->uuid);
 535                         params.push_back(":"+text);
 536                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 537                 }
 538         }
 539         else if (target_type == TYPE_CHANNEL)
 540         {
 541                 if (IS_LOCAL(user))
 542                 {
 543                         Channel *c = (Channel*)dest;
 544                         if (c)
 545                         {
 546                                 std::string cname = c->name;
 547                                 if (status)
 548                                         cname = status + cname;
 549                                 TreeServerList list;
 550                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 551                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 552                                 {
 553                                         TreeSocket* Sock = i->second->GetSocket();
 554                                         if (Sock)
 555                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 556                                 }
 557                         }
 558                 }
 559         }
 560         else if (target_type == TYPE_SERVER)
 561         {
 562                 if (IS_LOCAL(user))
 563                 {
 564                         char* target = (char*)dest;
 565                         parameterlist par;
 566                         par.push_back(target);
 567                         par.push_back(":"+text);
 568                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 569                 }
 570         }
 571 }
 572
 573 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 574 {
 575         AutoConnectServers(curtime);
 576         DoPingChecks(curtime);
 577         DoConnectTimeout(curtime);
 578 }
 579
 580 void ModuleSpanningTree::OnUserConnect(User* user)
 581 {
 582         if (user->quitting)
 583                 return;
 584
 585         parameterlist params;
 586         params.push_back(user->uuid);
 587         params.push_back(ConvToStr(user->age));
 588         params.push_back(user->nick);
 589         params.push_back(user->host);
 590         params.push_back(user->dhost);
 591         params.push_back(user->ident);
 592         params.push_back(user->GetIPString());
 593         params.push_back(ConvToStr(user->signon));
 594         params.push_back("+"+std::string(user->FormatModes(true)));
 595         params.push_back(":"+std::string(user->fullname));
 596         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 597
 598         Utils->TreeRoot->SetUserCount(1); // increment by 1
 599 }
 600
 601 void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created, CUList& excepts)
 602 {
 603         // Only do this for local users
 604         if (IS_LOCAL(memb->user))
 605         {
 606                 parameterlist params;
 607                 // set up their permissions and the channel TS with FJOIN.
 608                 // All users are FJOINed now, because a module may specify
 609                 // new joining permissions for the user.
 610                 params.push_back(memb->chan->name);
 611                 params.push_back(ConvToStr(memb->chan->age));
 612                 params.push_back(std::string("+") + memb->chan->ChanModes(true));
 613                 params.push_back(memb->modes+","+std::string(memb->user->uuid));
 614                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 615         }
 616 }
 617
 618 ModResult ModuleSpanningTree::OnChangeLocalUserHost(User* user, const std::string &newhost)
 619 {
 620         if (user->registered != REG_ALL)
 621                 return MOD_RES_PASSTHRU;
 622
 623         parameterlist params;
 624         params.push_back(newhost);
 625         Utils->DoOneToMany(user->uuid,"FHOST",params);
 626         return MOD_RES_PASSTHRU;
 627 }
 628
 629 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 630 {
 631         // only occurs for local clients
 632         if (user->registered != REG_ALL)
 633                 return;
 634
 635         parameterlist params;
 636         params.push_back(gecos);
 637         Utils->DoOneToMany(user->uuid,"FNAME",params);
 638 }
 639
 640 void ModuleSpanningTree::OnChangeIdent(User* user, const std::string &ident)
 641 {
 642         // only occurs for local clients
 643         if (user->registered != REG_ALL)
 644                 return;
 645
 646         parameterlist params;
 647         params.push_back(ident);
 648         Utils->DoOneToMany(user->uuid,"FIDENT",params);
 649 }
 650
 651 void ModuleSpanningTree::OnUserPart(Membership* memb, std::string &partmessage, CUList& excepts)
 652 {
 653         if (IS_LOCAL(memb->user))
 654         {
 655                 parameterlist params;
 656                 params.push_back(memb->chan->name);
 657                 if (!partmessage.empty())
 658                         params.push_back(":"+partmessage);
 659                 Utils->DoOneToMany(memb->user->uuid,"PART",params);
 660         }
 661 }
 662
 663 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 664 {
 665         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 666         {
 667                 parameterlist params;
 668
 669                 if (oper_message != reason)
 670                 {
 671                         params.push_back(":"+oper_message);
 672                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 673                 }
 674                 params.clear();
 675                 params.push_back(":"+reason);
 676                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 677         }
 678
 679         // Regardless, We need to modify the user Counts..
 680         TreeServer* SourceServer = Utils->FindServer(user->server);
 681         if (SourceServer)
 682         {
 683                 SourceServer->SetUserCount(-1); // decrement by 1
 684         }
 685 }
 686
 687 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 688 {
 689         if (IS_LOCAL(user))
 690         {
 691                 parameterlist params;
 692                 params.push_back(user->nick);
 693
 694                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 695                  */
 696                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 697                         user->age = ServerInstance->Time();
 698
 699                 params.push_back(ConvToStr(user->age));
 700                 Utils->DoOneToMany(user->uuid,"NICK",params);
 701         }
 702         else if (!loopCall && user->nick == user->uuid)
 703         {
 704                 parameterlist params;
 705                 params.push_back(user->uuid);
 706                 params.push_back(ConvToStr(user->age));
 707                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SAVE",params);
 708         }
 709 }
 710
 711 void ModuleSpanningTree::OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts)
 712 {
 713         parameterlist params;
 714         params.push_back(memb->chan->name);
 715         params.push_back(memb->user->uuid);
 716         params.push_back(":"+reason);
 717         if (IS_LOCAL(source))
 718         {
 719                 Utils->DoOneToMany(source->uuid,"KICK",params);
 720         }
 721         else if (IS_FAKE(source) && source != Utils->ServerUser)
 722         {
 723                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 724         }
 725 }
 726
 727 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 728 {
 729         if (!IS_LOCAL(source))
 730                 return; // Only start routing if we're origin.
 731
 732         User::OperQuit.set(dest, operreason);
 733         parameterlist params;
 734         params.push_back(":"+operreason);
 735         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 736         params.clear();
 737         params.push_back(dest->uuid);
 738         params.push_back(":"+reason);
 739         Utils->DoOneToMany(source->uuid,"KILL",params);
 740 }
 741
 742 void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 743 {
 744         ServerInstance->Logs->Log("remoterehash", DEBUG, "called with param %s", parameter.c_str());
 745
 746         // Send out to other servers
 747         if (!parameter.empty() && parameter[0] != '-')
 748         {
 749                 parameterlist params;
 750                 params.push_back(parameter);
 751                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 752         }
 753 }
 754
 755 void ModuleSpanningTree::OnRehash(User* user)
 756 {
 757         // Re-read config stuff
 758         Utils->ReadConfiguration(true);
 759 }
 760
 761 void ModuleSpanningTree::OnLoadModule(Module* mod, const std::string &name)
 762 {
 763         this->RedoConfig(mod, name);
 764 }
 765
 766 void ModuleSpanningTree::OnUnloadModule(Module* mod, const std::string &name)
 767 {
 768         this->RedoConfig(mod, name);
 769 }
 770
 771 void ModuleSpanningTree::RedoConfig(Module* mod, const std::string &name)
 772 {
 773         /* If m_sha256.so is loaded (we use this for HMAC) or any module implementing a BufferedSocket interface is loaded,
 774          * then we need to re-read our config again taking this into account.
 775          */
 776         modulelist* ml = ServerInstance->Modules->FindInterface("BufferedSocketHook");
 777         bool IsBufferSocketModule = false;
 778
 779         /* Did we find any modules? */
 780         if (ml && std::find(ml->begin(), ml->end(), mod) != ml->end())
 781                 IsBufferSocketModule = true;
 782
 783         if (name == "m_sha256.so" || IsBufferSocketModule)
 784         {
 785                 Utils->ReadConfiguration(true);
 786         }
 787 }
 788
 789 // note: the protocol does not allow direct umode +o except
 790 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 791 // locally.
 792 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 793 {
 794         if (IS_LOCAL(user))
 795         {
 796                 parameterlist params;
 797                 params.push_back(opertype);
 798                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 799         }
 800 }
 801
 802 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 803 {
 804         if (!x->IsBurstable() || loopCall)
 805                 return;
 806
 807         char data[MAXBUF];
 808         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
 809         ServerInstance->Config->ServerName, (unsigned long)x->set_time, (unsigned long)x->duration, x->reason.c_str());
 810         parameterlist params;
 811         params.push_back(data);
 812
 813         if (!user)
 814         {
 815                 /* Server-set lines */
 816                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 817         }
 818         else if (IS_LOCAL(user))
 819         {
 820                 /* User-set lines */
 821                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 822         }
 823 }
 824
 825 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 826 {
 827         if (x->type == "K")
 828                 return;
 829
 830         char data[MAXBUF];
 831         snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
 832         parameterlist params;
 833         params.push_back(data);
 834
 835         if (!user)
 836         {
 837                 /* Server-unset lines */
 838                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 839         }
 840         else if (IS_LOCAL(user))
 841         {
 842                 /* User-unset lines */
 843                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 844         }
 845 }
 846
 847 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const parameterlist &text, const std::vector<TranslateType> &translate)
 848 {
 849         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 850         {
 851                 parameterlist params;
 852                 std::string command;
 853                 std::string output_text;
 854
 855                 ServerInstance->Parser->TranslateUIDs(translate, text, output_text);
 856
 857                 if (target_type == TYPE_USER)
 858                 {
 859                         User* u = (User*)dest;
 860                         params.push_back(u->uuid);
 861                         params.push_back(output_text);
 862                         command = "MODE";
 863                 }
 864                 else
 865                 {
 866                         Channel* c = (Channel*)dest;
 867                         params.push_back(c->name);
 868                         params.push_back(ConvToStr(c->age));
 869                         params.push_back(output_text);
 870                         command = "FMODE";
 871                 }
 872
 873                 Utils->DoOneToMany(user->uuid, command, params);
 874         }
 875 }
 876
 877 ModResult ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 878 {
 879         if (IS_LOCAL(user))
 880         {
 881                 if (awaymsg.empty())
 882                 {
 883                         parameterlist params;
 884                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 885                 }
 886                 else
 887                 {
 888                         parameterlist params;
 889                         params.push_back(ConvToStr(user->awaytime));
 890                         params.push_back(":" + awaymsg);
 891                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 892                 }
 893         }
 894
 895         return MOD_RES_PASSTHRU;
 896 }
 897
 898 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const parameterlist &modeline, const std::vector<TranslateType> &translate)
 899 {
 900         TreeSocket* s = (TreeSocket*)opaque;
 901         std::string output_text;
 902
 903         ServerInstance->Parser->TranslateUIDs(translate, modeline, output_text);
 904
 905         if (target)
 906         {
 907                 if (target_type == TYPE_USER)
 908                 {
 909                         User* u = (User*)target;
 910                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 911                 }
 912                 else if (target_type == TYPE_CHANNEL)
 913                 {
 914                         Channel* c = (Channel*)target;
 915                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 916                 }
 917         }
 918 }
 919
 920 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, Extensible* target, const std::string &extname, const std::string &extdata)
 921 {
 922         TreeSocket* s = static_cast<TreeSocket*>(opaque);
 923         User* u = dynamic_cast<User*>(target);
 924         Channel* c = dynamic_cast<Channel*>(target);
 925         if (u)
 926                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 927         else if (c)
 928                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 929         else if (!target)
 930                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 931 }
 932
 933 void ModuleSpanningTree::OnEvent(Event* event)
 934 {
 935         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")
 936                 || (event->GetEventID() == "send_modeset") || (event->GetEventID() == "send_snoset") || (event->GetEventID() == "send_push"))
 937         {
 938                 ServerInstance->Logs->Log("m_spanningtree", DEBUG, "WARNING: Deprecated use of old 1.1 style m_spanningtree event ignored, type '"+event->GetEventID()+"'!");
 939         }
 940 }
 941
 942 ModuleSpanningTree::~ModuleSpanningTree()
 943 {
 944         delete ServerInstance->PI;
 945         ServerInstance->PI = new ProtocolInterface(ServerInstance);
 946
 947         /* This will also free the listeners */
 948         delete Utils;
 949
 950         delete command_rconnect;
 951         delete command_rsquit;
 952
 953         ServerInstance->Timers->DelTimer(RefreshTimer);
 954
 955         ServerInstance->Modules->DoneWithInterface("BufferedSocketHook");
 956 }
 957
 958 Version ModuleSpanningTree::GetVersion()
 959 {
 960         return Version("$Id$", VF_VENDOR, API_VERSION);
 961 }
 962
 963 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 964  * so that any activity it sees is FINAL, e.g. we arent going to send out
 965  * a NICK message before m_cloaking has finished putting the +x on the user,
 966  * etc etc.
 967  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 968  * the module call queue.
 969  */
 970 void ModuleSpanningTree::Prioritize()
 971 {
 972         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 973 }
 974
 975 MODULE_INIT(ModuleSpanningTree)