src/modules/m_spanningtree/main.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *          the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 /* $ModDesc: Provides a spanning tree server link protocol */
  15
  16 #include "inspircd.h"
  17 #include "commands/cmd_whois.h"
  18 #include "commands/cmd_stats.h"
  19 #include "socket.h"
  20 #include "wildcard.h"
  21 #include "xline.h"
  22 #include "transport.h"
  23
  24 #include "m_spanningtree/timesynctimer.h"
  25 #include "m_spanningtree/resolvers.h"
  26 #include "m_spanningtree/main.h"
  27 #include "m_spanningtree/utils.h"
  28 #include "m_spanningtree/treeserver.h"
  29 #include "m_spanningtree/link.h"
  30 #include "m_spanningtree/treesocket.h"
  31 #include "m_spanningtree/rconnect.h"
  32 #include "m_spanningtree/rsquit.h"
  33
  34 /* $ModDep: m_spanningtree/timesynctimer.h m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h m_spanningtree/rconnect.h m_spanningtree/rsquit.h */
  35
  36 ModuleSpanningTree::ModuleSpanningTree(InspIRCd* Me)
  37         : Module(Me), max_local(0), max_global(0)
  38 {
  39         ServerInstance->Modules->UseInterface("BufferedSocketHook");
  40         Utils = new SpanningTreeUtilities(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, I_OnPostConnect,
  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, 28);
  58
  59         for (std::vector<User*>::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
  60         {
  61                 this->OnPostConnect((*i));
  62         }
  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 (*user->oper)
  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,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 char* const* parameters, int pcnt, User* user)
 110 {
 111         ShowLinks(Utils->TreeRoot,user,0);
 112         user->WriteNumeric(365, "%s * :End of /LINKS list.",user->nick);
 113         return;
 114 }
 115
 116 void ModuleSpanningTree::HandleLusers(const char* const* parameters, int pcnt, 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) && (!*user->oper))
 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,
 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,ServerInstance->Users->OperCount());
 151
 152         if (ServerInstance->Users->UnregisteredUserCount())
 153                 user->WriteNumeric(253, "%s %d :unknown connections",user->nick,ServerInstance->Users->UnregisteredUserCount());
 154
 155         if (ServerInstance->ChannelCount())
 156                 user->WriteNumeric(254, "%s %ld :channels formed",user->nick,ServerInstance->ChannelCount());
 157
 158         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());
 159         user->WriteNumeric(265, "%s :Current Local Users: %d  Max: %d",user->nick,ServerInstance->Users->LocalUserCount(),max_local);
 160         user->WriteNumeric(266, "%s :Current Global Users: %d  Max: %d",user->nick,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         for (unsigned int j = 0; j < Utils->TreeRoot->ChildCount(); j++)
 181         {
 182                 TreeServer* serv = Utils->TreeRoot->GetChild(j);
 183                 TreeSocket* sock = serv->GetSocket();
 184                 if (sock)
 185                 {
 186                         if (curtime >= serv->NextPingTime())
 187                         {
 188                                 if (serv->AnsweredLastPing())
 189                                 {
 190                                         sock->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" PING "+serv->GetID());
 191                                         serv->SetNextPingTime(curtime + Utils->PingFreq);
 192                                         timeval t;
 193                                         gettimeofday(&t, NULL);
 194                                         long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
 195                                         serv->LastPingMsec = ts;
 196                                         serv->Warned = false;
 197                                 }
 198                                 else
 199                                 {
 200                                         /* they didnt answer, boot them */
 201                                         sock->SendError("Ping timeout");
 202                                         sock->Squit(serv,"Ping timeout");
 203                                         ServerInstance->SE->DelFd(sock);
 204                                         sock->Close();
 205                                         return;
 206                                 }
 207                         }
 208                         else if ((Utils->PingWarnTime) && (!serv->Warned) && (curtime >= serv->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!serv->AnsweredLastPing()))
 209                         {
 210                                 /* The server hasnt responded, send a warning to opers */
 211                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", serv->GetName().c_str(), Utils->PingWarnTime);
 212                                 serv->Warned = true;
 213                         }
 214                 }
 215         }
 216
 217         /*
 218          * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 219          * This prevents lost REMOTECONNECT notices
 220          * XXX this should probably not do this until server has been bursting for, say, 60 seconds or something
 221          */
 222         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 223         {
 224                 if (i->second->bursting)
 225                 {
 226                         ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not finished burst, forcing end of burst.", i->second->GetName().c_str());
 227                         i->second->FinishBurst();
 228                 }
 229         }
 230 }
 231
 232 void ModuleSpanningTree::ConnectServer(Link* x)
 233 {
 234         bool ipvalid = true;
 235         QueryType start_type = DNS_QUERY_A;
 236 #ifdef IPV6
 237         start_type = DNS_QUERY_AAAA;
 238         if (strchr(x->IPAddr.c_str(),':'))
 239         {
 240                 in6_addr n;
 241                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 242                         ipvalid = false;
 243         }
 244         else
 245 #endif
 246         {
 247                 in_addr n;
 248                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 249                         ipvalid = false;
 250         }
 251
 252         /* Do we already have an IP? If so, no need to resolve it. */
 253         if (ipvalid)
 254         {
 255                 /* Gave a hook, but it wasnt one we know */
 256                 if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
 257                         return;
 258                 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()]);
 259                 if (newsocket->GetFd() > -1)
 260                 {
 261                         /* Handled automatically on success */
 262                 }
 263                 else
 264                 {
 265                         RemoteMessage(NULL, "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
 266                         if (ServerInstance->SocketCull.find(newsocket) == ServerInstance->SocketCull.end())
 267                                 ServerInstance->SocketCull[newsocket] = newsocket;
 268                         Utils->DoFailOver(x);
 269                 }
 270         }
 271         else
 272         {
 273                 try
 274                 {
 275                         bool cached;
 276                         ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x, cached, start_type);
 277                         ServerInstance->AddResolver(snr, cached);
 278                 }
 279                 catch (ModuleException& e)
 280                 {
 281                         RemoteMessage(NULL, "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 282                         Utils->DoFailOver(x);
 283                 }
 284         }
 285 }
 286
 287 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 288 {
 289         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 290         {
 291                 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
 292                 {
 293                         x->NextConnectTime = curtime + x->AutoConnect;
 294                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 295                         if (x->FailOver.length())
 296                         {
 297                                 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
 298                                 if (CheckFailOver)
 299                                 {
 300                                         /* The failover for this server is currently a member of the network.
 301                                          * The failover probably succeeded, where the main link did not.
 302                                          * Don't try the main link until the failover is gone again.
 303                                          */
 304                                         continue;
 305                                 }
 306                         }
 307                         if (!CheckDupe)
 308                         {
 309                                 // an autoconnected server is not connected. Check if its time to connect it
 310                                 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
 311                                 this->ConnectServer(&(*x));
 312                         }
 313                 }
 314         }
 315 }
 316
 317 int ModuleSpanningTree::HandleVersion(const char* const* parameters, int pcnt, User* user)
 318 {
 319         // we've already checked if pcnt > 0, so this is safe
 320         TreeServer* found = Utils->FindServerMask(parameters[0]);
 321         if (found)
 322         {
 323                 std::string Version = found->GetVersion();
 324                 user->WriteNumeric(351, "%s :%s",user->nick,Version.c_str());
 325                 if (found == Utils->TreeRoot)
 326                 {
 327                         ServerInstance->Config->Send005(user);
 328                 }
 329         }
 330         else
 331         {
 332                 user->WriteNumeric(402, "%s %s :No such server",user->nick,parameters[0]);
 333         }
 334         return 1;
 335 }
 336
 337 /* This method will attempt to get a link message out to as many people as is required.
 338  * If a user is provided, and that user is local, then the user is sent the message using
 339  * WriteServ (they are the local initiator of that message). If the user is remote, they are
 340  * sent that message remotely via PUSH.
 341  * If the user is NULL, then the notice is sent locally via WriteToSnoMask with snomask 'l',
 342  * and remotely via SNONOTICE with mask 'l'.
 343  */
 344 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 345 {
 346         /* This could cause an infinite loop, because DoOneToMany() will, on error,
 347          * call TreeSocket::OnError(), which in turn will call this function to
 348          * notify everyone of the error. So, drop any messages that are generated
 349          * during the sending of another message. -Special */
 350         static bool SendingRemoteMessage = false;
 351         if (SendingRemoteMessage)
 352                 return;
 353         SendingRemoteMessage = true;
 354
 355         std::deque<std::string> params;
 356         char text[MAXBUF];
 357         va_list argsPtr;
 358
 359         va_start(argsPtr, format);
 360         vsnprintf(text, MAXBUF, format, argsPtr);
 361         va_end(argsPtr);
 362
 363         if (!user)
 364         {
 365                 /* No user, target it generically at everyone */
 366                 ServerInstance->SNO->WriteToSnoMask('l', "%s", text);
 367                 params.push_back("l");
 368                 params.push_back(std::string(":") + text);
 369                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "SNONOTICE", params);
 370         }
 371         else
 372         {
 373                 if (IS_LOCAL(user))
 374                         user->WriteServ("NOTICE %s :%s", user->nick, text);
 375                 else
 376                 {
 377                         params.push_back(user->uuid);
 378                         params.push_back(std::string("::") + ServerInstance->Config->ServerName + " NOTICE " + user->nick + " :*** From " +
 379                                         ServerInstance->Config->ServerName+ ": " + text);
 380                         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "PUSH", params);
 381                 }
 382         }
 383
 384         SendingRemoteMessage = false;
 385 }
 386
 387 int ModuleSpanningTree::HandleConnect(const char* const* parameters, int pcnt, User* user)
 388 {
 389         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 390         {
 391                 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
 392                 {
 393                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 394                         if (!CheckDupe)
 395                         {
 396                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 397                                 ConnectServer(&(*x));
 398                                 return 1;
 399                         }
 400                         else
 401                         {
 402                                 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());
 403                                 return 1;
 404                         }
 405                 }
 406         }
 407         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0]);
 408         return 1;
 409 }
 410
 411 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 412 {
 413         TreeServer* s = Utils->FindServer(servername);
 414         if (s)
 415         {
 416                 description = s->GetDesc();
 417         }
 418 }
 419
 420 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 421 {
 422         if (IS_LOCAL(source))
 423         {
 424                 std::deque<std::string> params;
 425                 params.push_back(dest->uuid);
 426                 params.push_back(channel->name);
 427                 params.push_back(ConvToStr(expiry));
 428                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 429         }
 430 }
 431
 432 void ModuleSpanningTree::OnPostLocalTopicChange(User* user, Channel* chan, const std::string &topic)
 433 {
 434         std::deque<std::string> params;
 435         params.push_back(chan->name);
 436         params.push_back(":"+topic);
 437         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 438 }
 439
 440 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 441 {
 442         if (IS_LOCAL(user))
 443         {
 444                 std::deque<std::string> params;
 445                 params.push_back(":"+text);
 446                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 447         }
 448 }
 449
 450 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 451 {
 452         if (target_type == TYPE_USER)
 453         {
 454                 User* d = (User*)dest;
 455                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 456                 {
 457                         std::deque<std::string> params;
 458                         params.clear();
 459                         params.push_back(d->uuid);
 460                         params.push_back(":"+text);
 461                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 462                 }
 463         }
 464         else if (target_type == TYPE_CHANNEL)
 465         {
 466                 if (IS_LOCAL(user))
 467                 {
 468                         Channel *c = (Channel*)dest;
 469                         if (c)
 470                         {
 471                                 std::string cname = c->name;
 472                                 if (status)
 473                                         cname = status + cname;
 474                                 TreeServerList list;
 475                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 476                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 477                                 {
 478                                         TreeSocket* Sock = i->second->GetSocket();
 479                                         if (Sock)
 480                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 481                                 }
 482                         }
 483                 }
 484         }
 485         else if (target_type == TYPE_SERVER)
 486         {
 487                 if (IS_LOCAL(user))
 488                 {
 489                         char* target = (char*)dest;
 490                         std::deque<std::string> par;
 491                         par.push_back(target);
 492                         par.push_back(":"+text);
 493                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 494                 }
 495         }
 496 }
 497
 498 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 499 {
 500         if (target_type == TYPE_USER)
 501         {
 502                 // route private messages which are targetted at clients only to the server
 503                 // which needs to receive them
 504                 User* d = (User*)dest;
 505                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 506                 {
 507                         std::deque<std::string> params;
 508                         params.clear();
 509                         params.push_back(d->uuid);
 510                         params.push_back(":"+text);
 511                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 512                 }
 513         }
 514         else if (target_type == TYPE_CHANNEL)
 515         {
 516                 if (IS_LOCAL(user))
 517                 {
 518                         Channel *c = (Channel*)dest;
 519                         if (c)
 520                         {
 521                                 std::string cname = c->name;
 522                                 if (status)
 523                                         cname = status + cname;
 524                                 TreeServerList list;
 525                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 526                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 527                                 {
 528                                         TreeSocket* Sock = i->second->GetSocket();
 529                                         if (Sock)
 530                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 531                                 }
 532                         }
 533                 }
 534         }
 535         else if (target_type == TYPE_SERVER)
 536         {
 537                 if (IS_LOCAL(user))
 538                 {
 539                         char* target = (char*)dest;
 540                         std::deque<std::string> par;
 541                         par.push_back(target);
 542                         par.push_back(":"+text);
 543                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 544                 }
 545         }
 546 }
 547
 548 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 549 {
 550         AutoConnectServers(curtime);
 551         DoPingChecks(curtime);
 552 }
 553
 554 void ModuleSpanningTree::OnUserJoin(User* user, Channel* channel, bool sync, bool &silent)
 555 {
 556         // Only do this for local users
 557         if (IS_LOCAL(user))
 558         {
 559                 if (channel->GetUserCounter() == 1)
 560                 {
 561                         std::deque<std::string> params;
 562                         // set up their permissions and the channel TS with FJOIN.
 563                         // All users are FJOINed now, because a module may specify
 564                         // new joining permissions for the user.
 565                         params.push_back(channel->name);
 566                         params.push_back(ConvToStr(channel->age));
 567                         params.push_back(std::string(channel->GetAllPrefixChars(user))+","+std::string(user->uuid));
 568                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 569                         /* First user in, sync the modes for the channel */
 570                         params.pop_back();
 571                         params.push_back(std::string("+") + channel->ChanModes(true));
 572                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FMODE",params);
 573                 }
 574                 else
 575                 {
 576                         std::deque<std::string> params;
 577                         params.push_back(channel->name);
 578                         params.push_back(ConvToStr(channel->age));
 579                         Utils->DoOneToMany(user->uuid,"JOIN",params);
 580                 }
 581         }
 582 }
 583
 584 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 585 {
 586         // only occurs for local clients
 587         if (user->registered != REG_ALL)
 588                 return;
 589         std::deque<std::string> params;
 590         params.push_back(newhost);
 591         Utils->DoOneToMany(user->uuid,"FHOST",params);
 592 }
 593
 594 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 595 {
 596         // only occurs for local clients
 597         if (user->registered != REG_ALL)
 598                 return;
 599         std::deque<std::string> params;
 600         params.push_back(gecos);
 601         Utils->DoOneToMany(user->uuid,"FNAME",params);
 602 }
 603
 604 void ModuleSpanningTree::OnUserPart(User* user, Channel* channel, const std::string &partmessage, bool &silent)
 605 {
 606         if (IS_LOCAL(user))
 607         {
 608                 std::deque<std::string> params;
 609                 params.push_back(channel->name);
 610                 if (!partmessage.empty())
 611                         params.push_back(":"+partmessage);
 612                 Utils->DoOneToMany(user->uuid,"PART",params);
 613         }
 614 }
 615
 616 void ModuleSpanningTree::OnPostConnect(User* user)
 617 {
 618         if (IS_LOCAL(user))
 619         {
 620                 std::deque<std::string> params;
 621                 params.push_back(user->uuid);
 622                 params.push_back(ConvToStr(user->age));
 623                 params.push_back(user->nick);
 624                 params.push_back(user->host);
 625                 params.push_back(user->dhost);
 626                 params.push_back(user->ident);
 627                 params.push_back("+"+std::string(user->FormatModes()));
 628                 params.push_back(user->GetIPString());
 629                 params.push_back(ConvToStr(user->signon));
 630                 params.push_back(":"+std::string(user->fullname));
 631                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 632         }
 633
 634         TreeServer* SourceServer = Utils->FindServer(user->server);
 635         if (SourceServer)
 636         {
 637                 SourceServer->SetUserCount(1); // increment by 1
 638         }
 639 }
 640
 641 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 642 {
 643         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 644         {
 645                 std::deque<std::string> params;
 646
 647                 if (oper_message != reason)
 648                 {
 649                         params.push_back(":"+oper_message);
 650                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 651                 }
 652                 params.clear();
 653                 params.push_back(":"+reason);
 654                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 655         }
 656
 657         // Regardless, We need to modify the user Counts..
 658         TreeServer* SourceServer = Utils->FindServer(user->server);
 659         if (SourceServer)
 660         {
 661                 SourceServer->SetUserCount(-1); // decrement by 1
 662         }
 663 }
 664
 665 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 666 {
 667         if (IS_LOCAL(user))
 668         {
 669                 std::deque<std::string> params;
 670                 params.push_back(user->nick);
 671
 672                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 673                  */
 674                 if (irc::string(user->nick) != assign(oldnick))
 675                         user->age = ServerInstance->Time();
 676
 677                 params.push_back(ConvToStr(user->age));
 678                 Utils->DoOneToMany(user->uuid,"NICK",params);
 679         }
 680 }
 681
 682 void ModuleSpanningTree::OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
 683 {
 684         if ((source) && (IS_LOCAL(source)))
 685         {
 686                 std::deque<std::string> params;
 687                 params.push_back(chan->name);
 688                 params.push_back(user->uuid);
 689                 params.push_back(":"+reason);
 690                 Utils->DoOneToMany(source->uuid,"KICK",params);
 691         }
 692         else if (!source)
 693         {
 694                 std::deque<std::string> params;
 695                 params.push_back(chan->name);
 696                 params.push_back(user->uuid);
 697                 params.push_back(":"+reason);
 698                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 699         }
 700 }
 701
 702 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 703 {
 704         std::deque<std::string> params;
 705         params.push_back(":"+reason);
 706         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 707         params.clear();
 708         params.push_back(dest->uuid);
 709         params.push_back(":"+reason);
 710         dest->SetOperQuit(operreason);
 711         Utils->DoOneToMany(source->uuid,"KILL",params);
 712 }
 713
 714 void ModuleSpanningTree::OnRehash(User* user, const std::string &parameter)
 715 {
 716         if (!parameter.empty())
 717         {
 718                 std::deque<std::string> params;
 719                 params.push_back(parameter);
 720                 Utils->DoOneToMany(user ? user->nick : ServerInstance->Config->GetSID(), "REHASH", params);
 721                 // check for self
 722                 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
 723                 {
 724                         ServerInstance->SNO->WriteToSnoMask('A', "Remote rehash initiated locally by \002%s\002", user ? user->nick : ServerInstance->Config->ServerName);
 725                         ServerInstance->RehashServer();
 726                 }
 727         }
 728         Utils->ReadConfiguration(true);
 729         InitializeDisabledCommands(ServerInstance->Config->DisabledCommands, ServerInstance);
 730 }
 731
 732 // note: the protocol does not allow direct umode +o except
 733 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 734 // locally.
 735 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 736 {
 737         if (IS_LOCAL(user))
 738         {
 739                 std::deque<std::string> params;
 740                 params.push_back(opertype);
 741                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 742         }
 743 }
 744
 745 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 746 {
 747         if (!x->IsBurstable())
 748                 return;
 749
 750         char data[MAXBUF];
 751         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
 752         ServerInstance->Config->ServerName, (unsigned long)x->set_time, (unsigned long)x->duration, x->reason);
 753         std::deque<std::string> params;
 754         params.push_back(data);
 755
 756         if (!user)
 757         {
 758                 /* Server-set lines */
 759                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 760         }
 761         else if (IS_LOCAL(user))
 762         {
 763                 /* User-set lines */
 764                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 765         }
 766 }
 767
 768 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 769 {
 770         if (x->type == "K")
 771                 return;
 772
 773         char data[MAXBUF];
 774         snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
 775         std::deque<std::string> params;
 776         params.push_back(data);
 777
 778         if (!user)
 779         {
 780                 /* Server-unset lines */
 781                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 782         }
 783         else if (IS_LOCAL(user))
 784         {
 785                 /* User-unset lines */
 786                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 787         }
 788 }
 789
 790 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const std::string &text)
 791 {
 792         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 793         {
 794                 std::deque<std::string> params;
 795                 std::string command;
 796                 std::string output_text;
 797
 798                 ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, text, output_text);
 799
 800                 if (target_type == TYPE_USER)
 801                 {
 802                         User* u = (User*)dest;
 803                         params.push_back(u->uuid);
 804                         params.push_back(output_text);
 805                         command = "MODE";
 806                 }
 807                 else
 808                 {
 809                         Channel* c = (Channel*)dest;
 810                         params.push_back(c->name);
 811                         params.push_back(ConvToStr(c->age));
 812                         params.push_back(output_text);
 813                         command = "FMODE";
 814                 }
 815
 816                 Utils->DoOneToMany(user->uuid, command, params);
 817         }
 818 }
 819
 820 int ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 821 {
 822         if (IS_LOCAL(user))
 823         {
 824                 if (awaymsg.empty())
 825                 {
 826                         std::deque<std::string> params;
 827                         params.clear();
 828                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 829                 }
 830                 else
 831                 {
 832                         std::deque<std::string> params;
 833                         params.push_back(":" + awaymsg);
 834                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 835                 }
 836         }
 837
 838         return 0;
 839 }
 840
 841 void ModuleSpanningTree::ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
 842 {
 843         TreeSocket* s = (TreeSocket*)opaque;
 844         std::string output_text;
 845
 846         ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, modeline, output_text);
 847
 848         if (target)
 849         {
 850                 if (target_type == TYPE_USER)
 851                 {
 852                         User* u = (User*)target;
 853                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+u->uuid+" "+ConvToStr(u->age)+" "+output_text);
 854                 }
 855                 else
 856                 {
 857                         Channel* c = (Channel*)target;
 858                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 859                 }
 860         }
 861 }
 862
 863 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
 864 {
 865         TreeSocket* s = (TreeSocket*)opaque;
 866         if (target)
 867         {
 868                 if (target_type == TYPE_USER)
 869                 {
 870                         User* u = (User*)target;
 871                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 872                 }
 873                 else if (target_type == TYPE_CHANNEL)
 874                 {
 875                         Channel* c = (Channel*)target;
 876                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 877                 }
 878         }
 879         if (target_type == TYPE_OTHER)
 880         {
 881                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 882         }
 883 }
 884
 885 void ModuleSpanningTree::OnEvent(Event* event)
 886 {
 887         std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
 888         if (event->GetEventID() == "send_encap")
 889         {
 890                 if (params->size() < 2)
 891                         return;
 892
 893                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ENCAP", *params);
 894         }
 895         else if (event->GetEventID() == "send_metadata")
 896         {
 897                 if (params->size() < 3)
 898                         return;
 899                 (*params)[2] = ":" + (*params)[2];
 900                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"METADATA",*params);
 901         }
 902         else if (event->GetEventID() == "send_topic")
 903         {
 904                 if (params->size() < 2)
 905                         return;
 906                 (*params)[1] = ":" + (*params)[1];
 907                 params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
 908                 params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time()));
 909                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FTOPIC",*params);
 910         }
 911         else if (event->GetEventID() == "send_mode")
 912         {
 913                 if (params->size() < 2)
 914                         return;
 915                 // Insert the TS value of the object, either User or Channel
 916                 time_t ourTS = 0;
 917                 std::string output_text;
 918
 919                 /* Warning: in-place translation is only safe for type TR_NICK */
 920                 for (size_t n = 0; n < params->size(); n++)
 921                         ServerInstance->Parser->TranslateUIDs(TR_NICK, (*params)[n], (*params)[n]);
 922
 923                 User* a = ServerInstance->FindNick((*params)[0]);
 924                 if (a)
 925                 {
 926                         ourTS = a->age;
 927                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODE",*params);
 928                         return;
 929                 }
 930                 else
 931                 {
 932                         Channel* c = ServerInstance->FindChan((*params)[0]);
 933                         if (c)
 934                         {
 935                                 ourTS = c->age;
 936                                 params->insert(params->begin() + 1,ConvToStr(ourTS));
 937                                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FMODE",*params);
 938                         }
 939                 }
 940         }
 941         else if (event->GetEventID() == "send_mode_explicit")
 942         {
 943                 if (params->size() < 2)
 944                         return;
 945                 std::string output_text;
 946
 947                 /* Warning: in-place translation is only safe for type TR_NICK */
 948                 for (size_t n = 0; n < params->size(); n++)
 949                         ServerInstance->Parser->TranslateUIDs(TR_NICK, (*params)[n], (*params)[n]);
 950
 951                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODE",*params);
 952         }
 953         else if (event->GetEventID() == "send_opers")
 954         {
 955                 if (params->size() < 1)
 956                         return;
 957                 (*params)[0] = ":" + (*params)[0];
 958                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"OPERNOTICE",*params);
 959         }
 960         else if (event->GetEventID() == "send_modeset")
 961         {
 962                 if (params->size() < 2)
 963                         return;
 964                 (*params)[1] = ":" + (*params)[1];
 965                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODENOTICE",*params);
 966         }
 967         else if (event->GetEventID() == "send_snoset")
 968         {
 969                 if (params->size() < 2)
 970                         return;
 971                 (*params)[1] = ":" + (*params)[1];
 972                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SNONOTICE",*params);
 973         }
 974         else if (event->GetEventID() == "send_push")
 975         {
 976                 if (params->size() < 2)
 977                         return;
 978
 979                 User *a = ServerInstance->FindNick((*params)[0]);
 980
 981                 if (!a)
 982                         return;
 983
 984                 (*params)[0] = a->uuid;
 985                 (*params)[1] = ":" + (*params)[1];
 986                 Utils->DoOneToOne(ServerInstance->Config->GetSID(), "PUSH", *params, a->server);
 987         }
 988 }
 989
 990 ModuleSpanningTree::~ModuleSpanningTree()
 991 {
 992         /* This will also free the listeners */
 993         delete Utils;
 994
 995         ServerInstance->Timers->DelTimer(RefreshTimer);
 996
 997         ServerInstance->Modules->DoneWithInterface("BufferedSocketHook");
 998 }
 999
1000 Version ModuleSpanningTree::GetVersion()
1001 {
1002         return Version(1,2,0,2,VF_VENDOR,API_VERSION);
1003 }
1004
1005 /* It is IMPORTANT that m_spanningtree is the last module in the chain
1006  * so that any activity it sees is FINAL, e.g. we arent going to send out
1007  * a NICK message before m_cloaking has finished putting the +x on the user,
1008  * etc etc.
1009  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
1010  * the module call queue.
1011  */
1012 void ModuleSpanningTree::Prioritize()
1013 {
1014         ServerInstance->Modules->SetPriority(this, PRIO_LAST);
1015 }
1016
1017 MODULE_INIT(ModuleSpanningTree)