src/modules/m_spanningtree/main.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *          the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 /* $ModDesc: Provides a spanning tree server link protocol */
  15
  16 #include "inspircd.h"
  17 #include "commands/cmd_whois.h"
  18 #include "commands/cmd_stats.h"
  19 #include "socket.h"
  20 #include "wildcard.h"
  21 #include "xline.h"
  22 #include "transport.h"
  23
  24 #include "m_spanningtree/timesynctimer.h"
  25 #include "m_spanningtree/resolvers.h"
  26 #include "m_spanningtree/main.h"
  27 #include "m_spanningtree/utils.h"
  28 #include "m_spanningtree/treeserver.h"
  29 #include "m_spanningtree/link.h"
  30 #include "m_spanningtree/treesocket.h"
  31 #include "m_spanningtree/rconnect.h"
  32 #include "m_spanningtree/rsquit.h"
  33
  34 /* $ModDep: m_spanningtree/timesynctimer.h m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h m_spanningtree/rconnect.h m_spanningtree/rsquit.h */
  35
  36 ModuleSpanningTree::ModuleSpanningTree(InspIRCd* Me)
  37         : Module(Me), max_local(0), max_global(0)
  38 {
  39         ServerInstance->Modules->UseInterface("BufferedSocketHook");
  40         Utils = new SpanningTreeUtilities(Me, this);
  41         command_rconnect = new cmd_rconnect(ServerInstance, this, Utils);
  42         ServerInstance->AddCommand(command_rconnect);
  43         command_rsquit = new cmd_rsquit(ServerInstance, this, Utils);
  44         ServerInstance->AddCommand(command_rsquit);
  45         if (Utils->EnableTimeSync)
  46         {
  47                 SyncTimer = new TimeSyncTimer(ServerInstance, this);
  48                 ServerInstance->Timers->AddTimer(SyncTimer);
  49         }
  50         else
  51                 SyncTimer = NULL;
  52
  53         RefreshTimer = new CacheRefreshTimer(ServerInstance, Utils);
  54         ServerInstance->Timers->AddTimer(RefreshTimer);
  55 }
  56
  57 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
  58 {
  59         std::string Parent = Utils->TreeRoot->GetName();
  60         if (Current->GetParent())
  61         {
  62                 Parent = Current->GetParent()->GetName();
  63         }
  64         for (unsigned int q = 0; q < Current->ChildCount(); q++)
  65         {
  66                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str()))))
  67                 {
  68                         if (*user->oper)
  69                         {
  70                                  ShowLinks(Current->GetChild(q),user,hops+1);
  71                         }
  72                 }
  73                 else
  74                 {
  75                         ShowLinks(Current->GetChild(q),user,hops+1);
  76                 }
  77         }
  78         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
  79         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!IS_OPER(user)))
  80                 return;
  81         /* Or if the server is hidden and they're not an oper */
  82         else if ((Current->Hidden) && (!IS_OPER(user)))
  83                 return;
  84
  85         user->WriteServ("364 %s %s %s :%d %s",  user->nick,Current->GetName().c_str(),
  86                         (Utils->FlatLinks && (!IS_OPER(user))) ? ServerInstance->Config->ServerName : Parent.c_str(),
  87                         (Utils->FlatLinks && (!IS_OPER(user))) ? 0 : hops,
  88                         Current->GetDesc().c_str());
  89 }
  90
  91 int ModuleSpanningTree::CountLocalServs()
  92 {
  93         return Utils->TreeRoot->ChildCount();
  94 }
  95
  96 int ModuleSpanningTree::CountServs()
  97 {
  98         return Utils->serverlist.size();
  99 }
 100
 101 void ModuleSpanningTree::HandleLinks(const char** parameters, int pcnt, User* user)
 102 {
 103         ShowLinks(Utils->TreeRoot,user,0);
 104         user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
 105         return;
 106 }
 107
 108 void ModuleSpanningTree::HandleLusers(const char** parameters, int pcnt, User* user)
 109 {
 110         unsigned int n_users = ServerInstance->UserCount();
 111
 112         /* Only update these when someone wants to see them, more efficient */
 113         if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
 114                 max_local = ServerInstance->LocalUserCount();
 115         if (n_users > max_global)
 116                 max_global = n_users;
 117
 118         unsigned int ulined_count = 0;
 119         unsigned int ulined_local_count = 0;
 120
 121         /* If ulined are hidden and we're not an oper, count the number of ulined servers hidden,
 122          * locally and globally (locally means directly connected to us)
 123          */
 124         if ((Utils->HideULines) && (!*user->oper))
 125         {
 126                 for (server_hash::iterator q = Utils->serverlist.begin(); q != Utils->serverlist.end(); q++)
 127                 {
 128                         if (ServerInstance->ULine(q->second->GetName().c_str()))
 129                         {
 130                                 ulined_count++;
 131                                 if (q->second->GetParent() == Utils->TreeRoot)
 132                                         ulined_local_count++;
 133                         }
 134                 }
 135         }
 136         user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,
 137                         n_users-ServerInstance->ModeCount('i'),
 138                         ServerInstance->ModeCount('i'),
 139                         ulined_count ? this->CountServs() - ulined_count : this->CountServs());
 140
 141         if (ServerInstance->OperCount())
 142                 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
 143
 144         if (ServerInstance->UnregisteredUserCount())
 145                 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
 146
 147         if (ServerInstance->ChannelCount())
 148                 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
 149
 150         user->WriteServ("255 %s :I have %d clients and %d servers",user->nick,ServerInstance->LocalUserCount(),ulined_local_count ? this->CountLocalServs() - ulined_local_count : this->CountLocalServs());
 151         user->WriteServ("265 %s :Current Local Users: %d  Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
 152         user->WriteServ("266 %s :Current Global Users: %d  Max: %d",user->nick,n_users,max_global);
 153         return;
 154 }
 155
 156 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 157 {
 158         time_t mins_up = secs / 60;
 159         time_t hours_up = mins_up / 60;
 160         time_t days_up = hours_up / 24;
 161         secs = secs % 60;
 162         mins_up = mins_up % 60;
 163         hours_up = hours_up % 24;
 164         return ((days_up ? (ConvToStr(days_up) + "d") : std::string(""))
 165                         + (hours_up ? (ConvToStr(hours_up) + "h") : std::string(""))
 166                         + (mins_up ? (ConvToStr(mins_up) + "m") : std::string(""))
 167                         + ConvToStr(secs) + "s");
 168 }
 169
 170 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 171 {
 172         for (unsigned int j = 0; j < Utils->TreeRoot->ChildCount(); j++)
 173         {
 174                 TreeServer* serv = Utils->TreeRoot->GetChild(j);
 175                 TreeSocket* sock = serv->GetSocket();
 176                 if (sock)
 177                 {
 178                         if (curtime >= serv->NextPingTime())
 179                         {
 180                                 if (serv->AnsweredLastPing())
 181                                 {
 182                                         sock->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" PING "+serv->GetID());
 183                                         serv->SetNextPingTime(curtime + Utils->PingFreq);
 184                                         serv->LastPing = curtime;
 185                                         timeval t;
 186                                         gettimeofday(&t, NULL);
 187                                         long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
 188                                         serv->LastPingMsec = ts;
 189                                         serv->Warned = false;
 190                                 }
 191                                 else
 192                                 {
 193                                         /* they didnt answer, boot them */
 194                                         sock->SendError("Ping timeout");
 195                                         sock->Squit(serv,"Ping timeout");
 196                                         ServerInstance->SE->DelFd(sock);
 197                                         sock->Close();
 198                                         return;
 199                                 }
 200                         }
 201                         else if ((Utils->PingWarnTime) && (!serv->Warned) && (curtime >= serv->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!serv->AnsweredLastPing()))
 202                         {
 203                                 /* The server hasnt responded, send a warning to opers */
 204                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", serv->GetName().c_str(), Utils->PingWarnTime);
 205                                 serv->Warned = true;
 206                         }
 207                 }
 208         }
 209
 210         /* Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 211          * This prevents lost REMOTECONNECT notices
 212          */
 213         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 214                 Utils->SetRemoteBursting(i->second, false);
 215 }
 216
 217 void ModuleSpanningTree::ConnectServer(Link* x)
 218 {
 219         bool ipvalid = true;
 220         QueryType start_type = DNS_QUERY_A;
 221 #ifdef IPV6
 222         start_type = DNS_QUERY_AAAA;
 223         if (strchr(x->IPAddr.c_str(),':'))
 224         {
 225                 in6_addr n;
 226                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 227                         ipvalid = false;
 228         }
 229         else
 230 #endif
 231         {
 232                 in_addr n;
 233                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 234                         ipvalid = false;
 235         }
 236
 237         /* Do we already have an IP? If so, no need to resolve it. */
 238         if (ipvalid)
 239         {
 240                 /* Gave a hook, but it wasnt one we know */
 241                 if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
 242                         return;
 243                 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()]);
 244                 if (newsocket->GetFd() > -1)
 245                 {
 246                         /* Handled automatically on success */
 247                 }
 248                 else
 249                 {
 250                         RemoteMessage(NULL, "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
 251                         if (ServerInstance->SocketCull.find(newsocket) == ServerInstance->SocketCull.end())
 252                                 ServerInstance->SocketCull[newsocket] = newsocket;
 253                         Utils->DoFailOver(x);
 254                 }
 255         }
 256         else
 257         {
 258                 try
 259                 {
 260                         bool cached;
 261                         ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x, cached, start_type);
 262                         ServerInstance->AddResolver(snr, cached);
 263                 }
 264                 catch (ModuleException& e)
 265                 {
 266                         RemoteMessage(NULL, "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 267                         Utils->DoFailOver(x);
 268                 }
 269         }
 270 }
 271
 272 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 273 {
 274         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 275         {
 276                 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
 277                 {
 278                         x->NextConnectTime = curtime + x->AutoConnect;
 279                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 280                         if (x->FailOver.length())
 281                         {
 282                                 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
 283                                 if (CheckFailOver)
 284                                 {
 285                                         /* The failover for this server is currently a member of the network.
 286                                          * The failover probably succeeded, where the main link did not.
 287                                          * Don't try the main link until the failover is gone again.
 288                                          */
 289                                         continue;
 290                                 }
 291                         }
 292                         if (!CheckDupe)
 293                         {
 294                                 // an autoconnected server is not connected. Check if its time to connect it
 295                                 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
 296                                 this->ConnectServer(&(*x));
 297                         }
 298                 }
 299         }
 300 }
 301
 302 int ModuleSpanningTree::HandleVersion(const char** parameters, int pcnt, User* user)
 303 {
 304         // we've already checked if pcnt > 0, so this is safe
 305         TreeServer* found = Utils->FindServerMask(parameters[0]);
 306         if (found)
 307         {
 308                 std::string Version = found->GetVersion();
 309                 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
 310                 if (found == Utils->TreeRoot)
 311                 {
 312                         ServerInstance->Config->Send005(user);
 313                 }
 314         }
 315         else
 316         {
 317                 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
 318         }
 319         return 1;
 320 }
 321
 322 /* This method will attempt to get a link message out to as many people as is required.
 323  * If a user is provided, and that user is local, then the user is sent the message using
 324  * WriteServ (they are the local initiator of that message). If the user is remote, they are
 325  * sent that message remotely via PUSH.
 326  * If the user is NULL, then the notice is sent locally via WriteToSnoMask with snomask 'l',
 327  * and remotely via SNONOTICE with mask 'l'.
 328  */
 329 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 330 {
 331         /* This could cause an infinite loop, because DoOneToMany() will, on error,
 332          * call TreeSocket::OnError(), which in turn will call this function to
 333          * notify everyone of the error. So, drop any messages that are generated
 334          * during the sending of another message. -Special */
 335         static bool SendingRemoteMessage = false;
 336         if (SendingRemoteMessage)
 337                 return;
 338         SendingRemoteMessage = true;
 339
 340         std::deque<std::string> params;
 341         char text[MAXBUF];
 342         va_list argsPtr;
 343
 344         va_start(argsPtr, format);
 345         vsnprintf(text, MAXBUF, format, argsPtr);
 346         va_end(argsPtr);
 347
 348         if (!user)
 349         {
 350                 /* No user, target it generically at everyone */
 351                 ServerInstance->SNO->WriteToSnoMask('l', "%s", text);
 352                 params.push_back("l");
 353                 params.push_back(std::string(":") + text);
 354                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "SNONOTICE", params);
 355         }
 356         else
 357         {
 358                 if (IS_LOCAL(user))
 359                         user->WriteServ("NOTICE %s :%s", user->nick, text);
 360                 else
 361                 {
 362                         params.push_back(user->uuid);
 363                         params.push_back(std::string("::") + ServerInstance->Config->ServerName + " NOTICE " + user->nick + " :*** From " +
 364                                         ServerInstance->Config->ServerName+ ": " + text);
 365                         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "PUSH", params);
 366                 }
 367         }
 368
 369         SendingRemoteMessage = false;
 370 }
 371
 372 int ModuleSpanningTree::HandleConnect(const char** parameters, int pcnt, User* user)
 373 {
 374         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 375         {
 376                 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
 377                 {
 378                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 379                         if (!CheckDupe)
 380                         {
 381                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 382                                 ConnectServer(&(*x));
 383                                 return 1;
 384                         }
 385                         else
 386                         {
 387                                 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());
 388                                 return 1;
 389                         }
 390                 }
 391         }
 392         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0]);
 393         return 1;
 394 }
 395
 396 void ModuleSpanningTree::BroadcastTimeSync()
 397 {
 398         if (Utils->MasterTime)
 399         {
 400                 std::deque<std::string> params;
 401                 params.push_back(ConvToStr(ServerInstance->Time(false)));
 402                 params.push_back("FORCE");
 403                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "TIMESET", params);
 404         }
 405 }
 406
 407 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 408 {
 409         TreeServer* s = Utils->FindServer(servername);
 410         if (s)
 411         {
 412                 description = s->GetDesc();
 413         }
 414 }
 415
 416 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel)
 417 {
 418         if (IS_LOCAL(source))
 419         {
 420                 std::deque<std::string> params;
 421                 params.push_back(dest->uuid);
 422                 params.push_back(channel->name);
 423                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 424         }
 425 }
 426
 427 void ModuleSpanningTree::OnPostLocalTopicChange(User* user, Channel* chan, const std::string &topic)
 428 {
 429         std::deque<std::string> params;
 430         params.push_back(chan->name);
 431         params.push_back(":"+topic);
 432         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 433 }
 434
 435 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 436 {
 437         if (IS_LOCAL(user))
 438         {
 439                 std::deque<std::string> params;
 440                 params.push_back(":"+text);
 441                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 442         }
 443 }
 444
 445 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 446 {
 447         if (target_type == TYPE_USER)
 448         {
 449                 User* d = (User*)dest;
 450                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 451                 {
 452                         std::deque<std::string> params;
 453                         params.clear();
 454                         params.push_back(d->uuid);
 455                         params.push_back(":"+text);
 456                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 457                 }
 458         }
 459         else if (target_type == TYPE_CHANNEL)
 460         {
 461                 if (IS_LOCAL(user))
 462                 {
 463                         Channel *c = (Channel*)dest;
 464                         if (c)
 465                         {
 466                                 std::string cname = c->name;
 467                                 if (status)
 468                                         cname = status + cname;
 469                                 TreeServerList list;
 470                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 471                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 472                                 {
 473                                         TreeSocket* Sock = i->second->GetSocket();
 474                                         if (Sock)
 475                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 476                                 }
 477                         }
 478                 }
 479         }
 480         else if (target_type == TYPE_SERVER)
 481         {
 482                 if (IS_LOCAL(user))
 483                 {
 484                         char* target = (char*)dest;
 485                         std::deque<std::string> par;
 486                         par.push_back(target);
 487                         par.push_back(":"+text);
 488                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 489                 }
 490         }
 491 }
 492
 493 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 494 {
 495         if (target_type == TYPE_USER)
 496         {
 497                 // route private messages which are targetted at clients only to the server
 498                 // which needs to receive them
 499                 User* d = (User*)dest;
 500                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 501                 {
 502                         std::deque<std::string> params;
 503                         params.clear();
 504                         params.push_back(d->uuid);
 505                         params.push_back(":"+text);
 506                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 507                 }
 508         }
 509         else if (target_type == TYPE_CHANNEL)
 510         {
 511                 if (IS_LOCAL(user))
 512                 {
 513                         Channel *c = (Channel*)dest;
 514                         if (c)
 515                         {
 516                                 std::string cname = c->name;
 517                                 if (status)
 518                                         cname = status + cname;
 519                                 TreeServerList list;
 520                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 521                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 522                                 {
 523                                         TreeSocket* Sock = i->second->GetSocket();
 524                                         if (Sock)
 525                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 526                                 }
 527                         }
 528                 }
 529         }
 530         else if (target_type == TYPE_SERVER)
 531         {
 532                 if (IS_LOCAL(user))
 533                 {
 534                         char* target = (char*)dest;
 535                         std::deque<std::string> par;
 536                         par.push_back(target);
 537                         par.push_back(":"+text);
 538                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 539                 }
 540         }
 541 }
 542
 543 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 544 {
 545         AutoConnectServers(curtime);
 546         DoPingChecks(curtime);
 547 }
 548
 549 void ModuleSpanningTree::OnUserJoin(User* user, Channel* channel, bool &silent)
 550 {
 551         // Only do this for local users
 552         if (IS_LOCAL(user))
 553         {
 554                 if (channel->GetUserCounter() == 1)
 555                 {
 556                         std::deque<std::string> params;
 557                         // set up their permissions and the channel TS with FJOIN.
 558                         // All users are FJOINed now, because a module may specify
 559                         // new joining permissions for the user.
 560                         params.push_back(channel->name);
 561                         params.push_back(ConvToStr(channel->age));
 562                         params.push_back(std::string(channel->GetAllPrefixChars(user))+","+std::string(user->uuid));
 563                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 564                         /* First user in, sync the modes for the channel */
 565                         params.pop_back();
 566                         params.push_back(channel->ChanModes(true));
 567                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FMODE",params);
 568                 }
 569                 else
 570                 {
 571                         std::deque<std::string> params;
 572                         params.push_back(channel->name);
 573                         params.push_back(ConvToStr(channel->age));
 574                         Utils->DoOneToMany(user->uuid,"JOIN",params);
 575                 }
 576         }
 577 }
 578
 579 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 580 {
 581         // only occurs for local clients
 582         if (user->registered != REG_ALL)
 583                 return;
 584         std::deque<std::string> params;
 585         params.push_back(newhost);
 586         Utils->DoOneToMany(user->uuid,"FHOST",params);
 587 }
 588
 589 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 590 {
 591         // only occurs for local clients
 592         if (user->registered != REG_ALL)
 593                 return;
 594         std::deque<std::string> params;
 595         params.push_back(gecos);
 596         Utils->DoOneToMany(user->uuid,"FNAME",params);
 597 }
 598
 599 void ModuleSpanningTree::OnUserPart(User* user, Channel* channel, const std::string &partmessage, bool &silent)
 600 {
 601         if (IS_LOCAL(user))
 602         {
 603                 std::deque<std::string> params;
 604                 params.push_back(channel->name);
 605                 if (!partmessage.empty())
 606                         params.push_back(":"+partmessage);
 607                 Utils->DoOneToMany(user->uuid,"PART",params);
 608         }
 609 }
 610
 611 void ModuleSpanningTree::OnUserConnect(User* user)
 612 {
 613         if (IS_LOCAL(user))
 614         {
 615                 std::deque<std::string> params;
 616                 params.push_back(user->uuid);
 617                 params.push_back(ConvToStr(user->age));
 618                 params.push_back(user->nick);
 619                 params.push_back(user->host);
 620                 params.push_back(user->dhost);
 621                 params.push_back(user->ident);
 622                 params.push_back("+"+std::string(user->FormatModes()));
 623                 params.push_back(user->GetIPString());
 624                 params.push_back(ConvToStr(user->signon));
 625                 params.push_back(":"+std::string(user->fullname));
 626                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 627                 // User is Local, change needs to be reflected!
 628                 TreeServer* SourceServer = Utils->FindServer(user->server);
 629                 if (SourceServer)
 630                 {
 631                         SourceServer->AddUserCount();
 632                 }
 633         }
 634 }
 635
 636 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 637 {
 638         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 639         {
 640                 std::deque<std::string> params;
 641
 642                 if (oper_message != reason)
 643                 {
 644                         params.push_back(":"+oper_message);
 645                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 646                 }
 647                 params.clear();
 648                 params.push_back(":"+reason);
 649                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 650         }
 651         // Regardless, We need to modify the user Counts..
 652         TreeServer* SourceServer = Utils->FindServer(user->server);
 653         if (SourceServer)
 654         {
 655                 SourceServer->DelUserCount();
 656         }
 657 }
 658
 659 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 660 {
 661         if (IS_LOCAL(user))
 662         {
 663                 std::deque<std::string> params;
 664                 params.push_back(user->nick);
 665
 666                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 667                  */
 668                 if (irc::string(user->nick) != assign(oldnick))
 669                         user->age = ServerInstance->Time(true);
 670
 671                 params.push_back(ConvToStr(user->age));
 672                 Utils->DoOneToMany(user->uuid,"NICK",params);
 673         }
 674 }
 675
 676 void ModuleSpanningTree::OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
 677 {
 678         if ((source) && (IS_LOCAL(source)))
 679         {
 680                 std::deque<std::string> params;
 681                 params.push_back(chan->name);
 682                 params.push_back(user->uuid);
 683                 params.push_back(":"+reason);
 684                 Utils->DoOneToMany(source->uuid,"KICK",params);
 685         }
 686         else if (!source)
 687         {
 688                 std::deque<std::string> params;
 689                 params.push_back(chan->name);
 690                 params.push_back(user->uuid);
 691                 params.push_back(":"+reason);
 692                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 693         }
 694 }
 695
 696 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 697 {
 698         std::deque<std::string> params;
 699         params.push_back(":"+reason);
 700         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 701         params.clear();
 702         params.push_back(dest->uuid);
 703         params.push_back(":"+reason);
 704         dest->SetOperQuit(operreason);
 705         Utils->DoOneToMany(source->uuid,"KILL",params);
 706 }
 707
 708 void ModuleSpanningTree::OnRehash(User* user, const std::string &parameter)
 709 {
 710         if (!parameter.empty())
 711         {
 712                 std::deque<std::string> params;
 713                 params.push_back(parameter);
 714                 Utils->DoOneToMany(user ? user->nick : ServerInstance->Config->GetSID(), "REHASH", params);
 715                 // check for self
 716                 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
 717                 {
 718                         ServerInstance->WriteOpers("*** Remote rehash initiated locally by \002%s\002", user ? user->nick : ServerInstance->Config->ServerName);
 719                         ServerInstance->RehashServer();
 720                 }
 721         }
 722         Utils->ReadConfiguration(false);
 723         InitializeDisabledCommands(ServerInstance->Config->DisabledCommands, ServerInstance);
 724 }
 725
 726 // note: the protocol does not allow direct umode +o except
 727 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 728 // locally.
 729 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 730 {
 731         if (IS_LOCAL(user))
 732         {
 733                 std::deque<std::string> params;
 734                 params.push_back(opertype);
 735                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 736         }
 737 }
 738
 739 void ModuleSpanningTree::OnAddLine(XLine* line, User* user)
 740 {
 741         if (line->type == "K")
 742                 return;
 743
 744         char data[MAXBUF];
 745         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", line->type.c_str(), line->Displayable(), ServerInstance->Config->ServerName, line->set_time,
 746                         line->duration, line->reason);
 747         std::deque<std::string> params;
 748         params.push_back(data);
 749
 750         if (!user)
 751         {
 752                 /* Server-set lines */
 753                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 754         }
 755         else if (IS_LOCAL(user))
 756         {
 757                 /* User-set lines */
 758                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 759         }
 760 }
 761
 762 void ModuleSpanningTree::OnDelLine(XLine* line, User* user)
 763 {
 764         if (line->type == "K")
 765                 return;
 766
 767         char data[MAXBUF];
 768         snprintf(data,MAXBUF,"%s %s", line->type.c_str(), line->Displayable());
 769         std::deque<std::string> params;
 770         params.push_back(data);
 771
 772         if (!user)
 773         {
 774                 /* Server-unset lines */
 775                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 776         }
 777         else if (IS_LOCAL(user))
 778         {
 779                 /* User-unset lines */
 780                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 781         }
 782 }
 783
 784 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const std::string &text)
 785 {
 786         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 787         {
 788                 std::deque<std::string> params;
 789                 std::string command;
 790                 std::string output_text;
 791
 792                 ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, text, output_text);
 793
 794                 if (target_type == TYPE_USER)
 795                 {
 796                         User* u = (User*)dest;
 797                         params.push_back(u->uuid);
 798                         params.push_back(output_text);
 799                         command = "MODE";
 800                 }
 801                 else
 802                 {
 803                         Channel* c = (Channel*)dest;
 804                         params.push_back(c->name);
 805                         params.push_back(ConvToStr(c->age));
 806                         params.push_back(output_text);
 807                         command = "FMODE";
 808                 }
 809
 810                 Utils->DoOneToMany(user->uuid, command, params);
 811         }
 812 }
 813
 814 void ModuleSpanningTree::OnSetAway(User* user)
 815 {
 816         if (IS_LOCAL(user))
 817         {
 818                 std::deque<std::string> params;
 819                 params.push_back(":"+std::string(user->awaymsg));
 820                 Utils->DoOneToMany(user->uuid,"AWAY",params);
 821         }
 822 }
 823
 824 void ModuleSpanningTree::OnCancelAway(User* user)
 825 {
 826         if (IS_LOCAL(user))
 827         {
 828                 std::deque<std::string> params;
 829                 params.clear();
 830                 Utils->DoOneToMany(user->uuid,"AWAY",params);
 831         }
 832 }
 833
 834 void ModuleSpanningTree::ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
 835 {
 836         TreeSocket* s = (TreeSocket*)opaque;
 837         std::string output_text;
 838
 839         ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, modeline, output_text);
 840
 841         if (target)
 842         {
 843                 if (target_type == TYPE_USER)
 844                 {
 845                         User* u = (User*)target;
 846                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+u->uuid+" "+ConvToStr(u->age)+" "+output_text);
 847                 }
 848                 else
 849                 {
 850                         Channel* c = (Channel*)target;
 851                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 852                 }
 853         }
 854 }
 855
 856 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
 857 {
 858         TreeSocket* s = (TreeSocket*)opaque;
 859         if (target)
 860         {
 861                 if (target_type == TYPE_USER)
 862                 {
 863                         User* u = (User*)target;
 864                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 865                 }
 866                 else if (target_type == TYPE_CHANNEL)
 867                 {
 868                         Channel* c = (Channel*)target;
 869                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 870                 }
 871         }
 872         if (target_type == TYPE_OTHER)
 873         {
 874                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 875         }
 876 }
 877
 878 void ModuleSpanningTree::OnEvent(Event* event)
 879 {
 880         std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
 881         if (event->GetEventID() == "send_metadata")
 882         {
 883                 if (params->size() < 3)
 884                         return;
 885                 (*params)[2] = ":" + (*params)[2];
 886                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"METADATA",*params);
 887         }
 888         else if (event->GetEventID() == "send_topic")
 889         {
 890                 if (params->size() < 2)
 891                         return;
 892                 (*params)[1] = ":" + (*params)[1];
 893                 params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
 894                 params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time(true)));
 895                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FTOPIC",*params);
 896         }
 897         else if (event->GetEventID() == "send_mode")
 898         {
 899                 if (params->size() < 2)
 900                         return;
 901                 // Insert the TS value of the object, either User or Channel
 902                 time_t ourTS = 0;
 903                 std::string output_text;
 904
 905                 /* Warning: in-place translation is only safe for type TR_NICK */
 906                 for (size_t n = 0; n < params->size(); n++)
 907                         ServerInstance->Parser->TranslateUIDs(TR_NICK, (*params)[n], (*params)[n]);
 908
 909                 User* a = ServerInstance->FindNick((*params)[0]);
 910                 if (a)
 911                 {
 912                         ourTS = a->age;
 913                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODE",*params);
 914                         return;
 915                 }
 916                 else
 917                 {
 918                         Channel* a = ServerInstance->FindChan((*params)[0]);
 919                         if (a)
 920                         {
 921                                 ourTS = a->age;
 922                                 params->insert(params->begin() + 1,ConvToStr(ourTS));
 923                                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FMODE",*params);
 924                         }
 925                 }
 926         }
 927         else if (event->GetEventID() == "send_mode_explicit")
 928         {
 929                 if (params->size() < 2)
 930                         return;
 931                 std::string output_text;
 932
 933                 /* Warning: in-place translation is only safe for type TR_NICK */
 934                 for (size_t n = 0; n < params->size(); n++)
 935                         ServerInstance->Parser->TranslateUIDs(TR_NICK, (*params)[n], (*params)[n]);
 936
 937                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODE",*params);
 938         }
 939         else if (event->GetEventID() == "send_opers")
 940         {
 941                 if (params->size() < 1)
 942                         return;
 943                 (*params)[0] = ":" + (*params)[0];
 944                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"OPERNOTICE",*params);
 945         }
 946         else if (event->GetEventID() == "send_modeset")
 947         {
 948                 if (params->size() < 2)
 949                         return;
 950                 (*params)[1] = ":" + (*params)[1];
 951                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODENOTICE",*params);
 952         }
 953         else if (event->GetEventID() == "send_snoset")
 954         {
 955                 if (params->size() < 2)
 956                         return;
 957                 (*params)[1] = ":" + (*params)[1];
 958                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SNONOTICE",*params);
 959         }
 960         else if (event->GetEventID() == "send_push")
 961         {
 962                 if (params->size() < 2)
 963                         return;
 964
 965                 User *a = ServerInstance->FindNick((*params)[0]);
 966
 967                 if (!a)
 968                         return;
 969
 970                 (*params)[0] = a->uuid;
 971                 (*params)[1] = ":" + (*params)[1];
 972                 Utils->DoOneToOne(ServerInstance->Config->GetSID(), "PUSH", *params, a->server);
 973         }
 974 }
 975
 976 ModuleSpanningTree::~ModuleSpanningTree()
 977 {
 978         /* This will also free the listeners */
 979         delete Utils;
 980         if (SyncTimer)
 981                 ServerInstance->Timers->DelTimer(SyncTimer);
 982
 983         ServerInstance->Timers->DelTimer(RefreshTimer);
 984
 985         ServerInstance->Modules->DoneWithInterface("BufferedSocketHook");
 986 }
 987
 988 Version ModuleSpanningTree::GetVersion()
 989 {
 990         return Version(1,1,0,2,VF_VENDOR,API_VERSION);
 991 }
 992
 993 void ModuleSpanningTree::Implements(char* List)
 994 {
 995         List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
 996         List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
 997         List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
 998         List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
 999         List[I_OnOper] = List[I_OnAddLine] = List[I_OnDelLine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
1000         List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = List[I_OnPostCommand] = 1;
1001 }
1002
1003 /* It is IMPORTANT that m_spanningtree is the last module in the chain
1004  * so that any activity it sees is FINAL, e.g. we arent going to send out
1005  * a NICK message before m_cloaking has finished putting the +x on the user,
1006  * etc etc.
1007  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
1008  * the module call queue.
1009  */
1010 void ModuleSpanningTree::Prioritize()
1011 {
1012         ServerInstance->Modules->SetPriority(this, PRIO_LAST);
1013 }
1014
1015 MODULE_INIT(ModuleSpanningTree)