src/modules/m_spanningtree/main.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
   6  * See: http://wiki.inspircd.org/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *          the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 /* $ModDesc: Provides a spanning tree server link protocol */
  15
  16 #include "inspircd.h"
  17 #include "socket.h"
  18 #include "xline.h"
  19
  20 #include "cachetimer.h"
  21 #include "resolvers.h"
  22 #include "main.h"
  23 #include "utils.h"
  24 #include "treeserver.h"
  25 #include "link.h"
  26 #include "treesocket.h"
  27 #include "rconnect.h"
  28 #include "rsquit.h"
  29 #include "protocolinterface.h"
  30
  31 /* $ModDep: m_spanningtree/cachetimer.h m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h m_spanningtree/rconnect.h m_spanningtree/rsquit.h m_spanningtree/protocolinterface.h */
  32
  33 ModuleSpanningTree::ModuleSpanningTree()
  34         : max_local(0), max_global(0)
  35 {
  36         ServerInstance->Modules->UseInterface("BufferedSocketHook");
  37         Utils = new SpanningTreeUtilities(this);
  38         command_rconnect = new CommandRConnect(this, Utils);
  39         ServerInstance->AddCommand(command_rconnect);
  40         command_rsquit = new CommandRSQuit(this, Utils);
  41         ServerInstance->AddCommand(command_rsquit);
  42         RefreshTimer = new CacheRefreshTimer(Utils);
  43         ServerInstance->Timers->AddTimer(RefreshTimer);
  44
  45         Implementation eventlist[] =
  46         {
  47                 I_OnPreCommand, I_OnGetServerDescription, I_OnUserInvite, I_OnPostTopicChange,
  48                 I_OnWallops, I_OnUserNotice, I_OnUserMessage, I_OnBackgroundTimer, I_OnUserJoin,
  49                 I_OnChangeLocalUserHost, I_OnChangeName, I_OnChangeIdent, I_OnUserPart, I_OnUnloadModule,
  50                 I_OnUserQuit, I_OnUserPostNick, I_OnUserKick, I_OnRemoteKill, I_OnRehash, I_OnPreRehash,
  51                 I_OnOper, I_OnAddLine, I_OnDelLine, I_OnMode, I_OnLoadModule, I_OnStats,
  52                 I_OnSetAway, I_OnPostCommand, I_OnUserConnect
  53         };
  54         ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
  55
  56         delete ServerInstance->PI;
  57         ServerInstance->PI = new SpanningTreeProtocolInterface(this, Utils);
  58         loopCall = false;
  59
  60         // update our local user count
  61         Utils->TreeRoot->SetUserCount(ServerInstance->Users->local_users.size());
  62 }
  63
  64 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
  65 {
  66         std::string Parent = Utils->TreeRoot->GetName();
  67         if (Current->GetParent())
  68         {
  69                 Parent = Current->GetParent()->GetName();
  70         }
  71         for (unsigned int q = 0; q < Current->ChildCount(); q++)
  72         {
  73                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str()))))
  74                 {
  75                         if (IS_OPER(user))
  76                         {
  77                                  ShowLinks(Current->GetChild(q),user,hops+1);
  78                         }
  79                 }
  80                 else
  81                 {
  82                         ShowLinks(Current->GetChild(q),user,hops+1);
  83                 }
  84         }
  85         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
  86         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!IS_OPER(user)))
  87                 return;
  88         /* Or if the server is hidden and they're not an oper */
  89         else if ((Current->Hidden) && (!IS_OPER(user)))
  90                 return;
  91
  92         user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick.c_str(),Current->GetName().c_str(),
  93                         (Utils->FlatLinks && (!IS_OPER(user))) ? ServerInstance->Config->ServerName.c_str() : Parent.c_str(),
  94                         (Utils->FlatLinks && (!IS_OPER(user))) ? 0 : hops,
  95                         Current->GetDesc().c_str());
  96 }
  97
  98 int ModuleSpanningTree::CountLocalServs()
  99 {
 100         return Utils->TreeRoot->ChildCount();
 101 }
 102
 103 int ModuleSpanningTree::CountServs()
 104 {
 105         return Utils->serverlist.size();
 106 }
 107
 108 void ModuleSpanningTree::HandleLinks(const std::vector<std::string>& parameters, User* user)
 109 {
 110         ShowLinks(Utils->TreeRoot,user,0);
 111         user->WriteNumeric(365, "%s * :End of /LINKS list.",user->nick.c_str());
 112         return;
 113 }
 114
 115 void ModuleSpanningTree::HandleLusers(const std::vector<std::string>& parameters, User* user)
 116 {
 117         unsigned int n_users = ServerInstance->Users->UserCount();
 118
 119         /* Only update these when someone wants to see them, more efficient */
 120         if ((unsigned int)ServerInstance->Users->LocalUserCount() > max_local)
 121                 max_local = ServerInstance->Users->LocalUserCount();
 122         if (n_users > max_global)
 123                 max_global = n_users;
 124
 125         unsigned int ulined_count = 0;
 126         unsigned int ulined_local_count = 0;
 127
 128         /* If ulined are hidden and we're not an oper, count the number of ulined servers hidden,
 129          * locally and globally (locally means directly connected to us)
 130          */
 131         if ((Utils->HideULines) && (!IS_OPER(user)))
 132         {
 133                 for (server_hash::iterator q = Utils->serverlist.begin(); q != Utils->serverlist.end(); q++)
 134                 {
 135                         if (ServerInstance->ULine(q->second->GetName().c_str()))
 136                         {
 137                                 ulined_count++;
 138                                 if (q->second->GetParent() == Utils->TreeRoot)
 139                                         ulined_local_count++;
 140                         }
 141                 }
 142         }
 143         user->WriteNumeric(251, "%s :There are %d users and %d invisible on %d servers",user->nick.c_str(),
 144                         n_users-ServerInstance->Users->ModeCount('i'),
 145                         ServerInstance->Users->ModeCount('i'),
 146                         ulined_count ? this->CountServs() - ulined_count : this->CountServs());
 147
 148         if (ServerInstance->Users->OperCount())
 149                 user->WriteNumeric(252, "%s %d :operator(s) online",user->nick.c_str(),ServerInstance->Users->OperCount());
 150
 151         if (ServerInstance->Users->UnregisteredUserCount())
 152                 user->WriteNumeric(253, "%s %d :unknown connections",user->nick.c_str(),ServerInstance->Users->UnregisteredUserCount());
 153
 154         if (ServerInstance->ChannelCount())
 155                 user->WriteNumeric(254, "%s %ld :channels formed",user->nick.c_str(),ServerInstance->ChannelCount());
 156
 157         user->WriteNumeric(255, "%s :I have %d clients and %d servers",user->nick.c_str(),ServerInstance->Users->LocalUserCount(),ulined_local_count ? this->CountLocalServs() - ulined_local_count : this->CountLocalServs());
 158         user->WriteNumeric(265, "%s :Current Local Users: %d  Max: %d",user->nick.c_str(),ServerInstance->Users->LocalUserCount(),max_local);
 159         user->WriteNumeric(266, "%s :Current Global Users: %d  Max: %d",user->nick.c_str(),n_users,max_global);
 160         return;
 161 }
 162
 163 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 164 {
 165         time_t mins_up = secs / 60;
 166         time_t hours_up = mins_up / 60;
 167         time_t days_up = hours_up / 24;
 168         secs = secs % 60;
 169         mins_up = mins_up % 60;
 170         hours_up = hours_up % 24;
 171         return ((days_up ? (ConvToStr(days_up) + "d") : std::string(""))
 172                         + (hours_up ? (ConvToStr(hours_up) + "h") : std::string(""))
 173                         + (mins_up ? (ConvToStr(mins_up) + "m") : std::string(""))
 174                         + ConvToStr(secs) + "s");
 175 }
 176
 177 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 178 {
 179         /*
 180          * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 181          * This prevents lost REMOTECONNECT notices
 182          */
 183         timeval t;
 184         gettimeofday(&t, NULL);
 185         long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
 186
 187         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 188         {
 189                 TreeServer *s = i->second;
 190
 191                 // Fix for bug #792, do not ping servers that are not connected yet!
 192                 // Remote servers have Socket == NULL and local connected servers have
 193                 // Socket->LinkState == CONNECTED
 194                 if (s->GetSocket() && s->GetSocket()->GetLinkState() != CONNECTED)
 195                         continue;
 196
 197                 // Now do PING checks on all servers
 198                 TreeServer *mts = Utils->BestRouteTo(s->GetID());
 199
 200                 if (mts)
 201                 {
 202                         // Only ping if this server needs one
 203                         if (curtime >= s->NextPingTime())
 204                         {
 205                                 // And if they answered the last
 206                                 if (s->AnsweredLastPing())
 207                                 {
 208                                         // They did, send a ping to them
 209                                         s->SetNextPingTime(curtime + Utils->PingFreq);
 210                                         TreeSocket *tsock = mts->GetSocket();
 211
 212                                         // ... if we can find a proper route to them
 213                                         if (tsock)
 214                                         {
 215                                                 tsock->WriteLine(std::string(":") + ServerInstance->Config->GetSID() + " PING " +
 216                                                                 ServerInstance->Config->GetSID() + " " + s->GetID());
 217                                                 s->LastPingMsec = ts;
 218                                         }
 219                                 }
 220                                 else
 221                                 {
 222                                         // They didn't answer the last ping, if they are locally connected, get rid of them.
 223                                         TreeSocket *sock = s->GetSocket();
 224                                         if (sock)
 225                                         {
 226                                                 sock->SendError("Ping timeout");
 227                                                 sock->Squit(s,"Ping timeout");
 228                                                 ServerInstance->SE->DelFd(sock);
 229                                                 sock->Close();
 230                                                 return;
 231                                         }
 232                                 }
 233                         }
 234
 235                         // If warn on ping enabled and not warned and the difference is sufficient and they didn't answer the last ping...
 236                         if ((Utils->PingWarnTime) && (!s->Warned) && (curtime >= s->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!s->AnsweredLastPing()))
 237                         {
 238                                 /* The server hasnt responded, send a warning to opers */
 239                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", s->GetName().c_str(), Utils->PingWarnTime);
 240                                 s->Warned = true;
 241                         }
 242                 }
 243         }
 244 }
 245
 246 void ModuleSpanningTree::ConnectServer(Autoconnect* a, bool on_timer)
 247 {
 248         if (!a)
 249                 return;
 250         for(unsigned int j=0; j < a->servers.size(); j++)
 251         {
 252                 if (Utils->FindServer(a->servers[j]))
 253                 {
 254                         // found something in this block. Should the server fail,
 255                         // we want to start at the start of the list, not in the
 256                         // middle where we left off
 257                         a->position = -1;
 258                         return;
 259                 }
 260         }
 261         if (on_timer && a->position >= 0)
 262                 return;
 263         if (!on_timer && a->position < 0)
 264                 return;
 265
 266         a->position++;
 267         while (a->position < (int)a->servers.size())
 268         {
 269                 Link* x = Utils->FindLink(a->servers[a->position]);
 270                 if (x)
 271                 {
 272                         ServerInstance->SNO->WriteToSnoMask('l', "AUTOCONNECT: Auto-connecting server \002%s\002", x->Name.c_str());
 273                         ConnectServer(x, a);
 274                         return;
 275                 }
 276                 a->position++;
 277         }
 278         // Autoconnect chain has been fully iterated; start at the beginning on the
 279         // next AutoConnectServers run
 280         a->position = -1;
 281 }
 282
 283 void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
 284 {
 285         bool ipvalid = true;
 286
 287         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 288         {
 289                 ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
 290                 return;
 291         }
 292
 293         QueryType start_type = DNS_QUERY_A;
 294         start_type = DNS_QUERY_AAAA;
 295         if (strchr(x->IPAddr.c_str(),':'))
 296         {
 297                 in6_addr n;
 298                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 299                         ipvalid = false;
 300         }
 301         else
 302         {
 303                 in_addr n;
 304                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 305                         ipvalid = false;
 306         }
 307
 308         /* Do we already have an IP? If so, no need to resolve it. */
 309         if (ipvalid)
 310         {
 311                 /* Gave a hook, but it wasnt one we know */
 312                 TreeSocket* newsocket = new TreeSocket(Utils, x->IPAddr, x->Port, x->Timeout ? x->Timeout : 10,
 313                         x->Name.c_str(), x->Bind, y, x->Hook);
 314                 if (newsocket->GetFd() > -1)
 315                 {
 316                         /* Handled automatically on success */
 317                 }
 318                 else
 319                 {
 320                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
 321                         ServerInstance->GlobalCulls.AddItem(newsocket);
 322                 }
 323         }
 324         else
 325         {
 326                 try
 327                 {
 328                         bool cached;
 329                         ServernameResolver* snr = new ServernameResolver(Utils, x->IPAddr, x, cached, start_type, y);
 330                         ServerInstance->AddResolver(snr, cached);
 331                 }
 332                 catch (ModuleException& e)
 333                 {
 334                         ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 335                         ConnectServer(y, false);
 336                 }
 337         }
 338 }
 339
 340 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 341 {
 342         for (std::vector<reference<Autoconnect> >::iterator i = Utils->AutoconnectBlocks.begin(); i < Utils->AutoconnectBlocks.end(); ++i)
 343         {
 344                 Autoconnect* x = *i;
 345                 if (curtime >= x->NextConnectTime)
 346                 {
 347                         x->NextConnectTime = curtime + x->Period;
 348                         ConnectServer(x, true);
 349                 }
 350         }
 351 }
 352
 353 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 354 {
 355         std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin();
 356         while (i != Utils->timeoutlist.end())
 357         {
 358                 TreeSocket* s = i->first;
 359                 std::pair<std::string, int> p = i->second;
 360                 std::map<TreeSocket*, std::pair<std::string, int> >::iterator me = i;
 361                 i++;
 362                 if (curtime > s->age + p.second)
 363                 {
 364                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 365                         Utils->timeoutlist.erase(me);
 366                         s->Close();
 367                         ServerInstance->GlobalCulls.AddItem(s);
 368                 }
 369         }
 370 }
 371
 372 ModResult ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 373 {
 374         // we've already checked if pcnt > 0, so this is safe
 375         TreeServer* found = Utils->FindServerMask(parameters[0]);
 376         if (found)
 377         {
 378                 std::string Version = found->GetVersion();
 379                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 380                 if (found == Utils->TreeRoot)
 381                 {
 382                         ServerInstance->Config->Send005(user);
 383                 }
 384         }
 385         else
 386         {
 387                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 388         }
 389         return MOD_RES_DENY;
 390 }
 391
 392 /* This method will attempt to get a message to a remote user.
 393  */
 394 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 395 {
 396         char text[MAXBUF];
 397         va_list argsPtr;
 398
 399         va_start(argsPtr, format);
 400         vsnprintf(text, MAXBUF, format, argsPtr);
 401         va_end(argsPtr);
 402
 403         if (IS_LOCAL(user))
 404                 user->WriteServ("NOTICE %s :%s", user->nick.c_str(), text);
 405         else
 406                 ServerInstance->PI->SendUserNotice(user, text);
 407 }
 408
 409 ModResult ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 410 {
 411         for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i < Utils->LinkBlocks.end(); i++)
 412         {
 413                 Link* x = *i;
 414                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 415                 {
 416                         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 417                         {
 418                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
 419                                 return MOD_RES_DENY;
 420                         }
 421
 422                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 423                         if (!CheckDupe)
 424                         {
 425                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 426                                 ConnectServer(x);
 427                                 return MOD_RES_DENY;
 428                         }
 429                         else
 430                         {
 431                                 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());
 432                                 return MOD_RES_DENY;
 433                         }
 434                 }
 435         }
 436         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 437         return MOD_RES_DENY;
 438 }
 439
 440 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 441 {
 442         TreeServer* s = Utils->FindServer(servername);
 443         if (s)
 444         {
 445                 description = s->GetDesc();
 446         }
 447 }
 448
 449 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 450 {
 451         if (IS_LOCAL(source))
 452         {
 453                 parameterlist params;
 454                 params.push_back(dest->uuid);
 455                 params.push_back(channel->name);
 456                 params.push_back(ConvToStr(expiry));
 457                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 458         }
 459 }
 460
 461 void ModuleSpanningTree::OnPostTopicChange(User* user, Channel* chan, const std::string &topic)
 462 {
 463         // Drop remote events on the floor.
 464         if (!IS_LOCAL(user))
 465                 return;
 466
 467         parameterlist params;
 468         params.push_back(chan->name);
 469         params.push_back(":"+topic);
 470         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 471 }
 472
 473 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 474 {
 475         if (IS_LOCAL(user))
 476         {
 477                 parameterlist params;
 478                 params.push_back(":"+text);
 479                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 480         }
 481 }
 482
 483 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 484 {
 485         /* Server origin */
 486         if (user == NULL)
 487                 return;
 488
 489         if (target_type == TYPE_USER)
 490         {
 491                 User* d = (User*)dest;
 492                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 493                 {
 494                         parameterlist params;
 495                         params.push_back(d->uuid);
 496                         params.push_back(":"+text);
 497                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 498                 }
 499         }
 500         else if (target_type == TYPE_CHANNEL)
 501         {
 502                 if (IS_LOCAL(user))
 503                 {
 504                         Channel *c = (Channel*)dest;
 505                         if (c)
 506                         {
 507                                 std::string cname = c->name;
 508                                 if (status)
 509                                         cname = status + cname;
 510                                 TreeServerList list;
 511                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 512                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 513                                 {
 514                                         TreeSocket* Sock = i->second->GetSocket();
 515                                         if (Sock)
 516                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 517                                 }
 518                         }
 519                 }
 520         }
 521         else if (target_type == TYPE_SERVER)
 522         {
 523                 if (IS_LOCAL(user))
 524                 {
 525                         char* target = (char*)dest;
 526                         parameterlist par;
 527                         par.push_back(target);
 528                         par.push_back(":"+text);
 529                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 530                 }
 531         }
 532 }
 533
 534 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 535 {
 536         /* Server origin */
 537         if (user == NULL)
 538                 return;
 539
 540         if (target_type == TYPE_USER)
 541         {
 542                 // route private messages which are targetted at clients only to the server
 543                 // which needs to receive them
 544                 User* d = (User*)dest;
 545                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 546                 {
 547                         parameterlist params;
 548                         params.push_back(d->uuid);
 549                         params.push_back(":"+text);
 550                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 551                 }
 552         }
 553         else if (target_type == TYPE_CHANNEL)
 554         {
 555                 if (IS_LOCAL(user))
 556                 {
 557                         Channel *c = (Channel*)dest;
 558                         if (c)
 559                         {
 560                                 std::string cname = c->name;
 561                                 if (status)
 562                                         cname = status + cname;
 563                                 TreeServerList list;
 564                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 565                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 566                                 {
 567                                         TreeSocket* Sock = i->second->GetSocket();
 568                                         if (Sock)
 569                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 570                                 }
 571                         }
 572                 }
 573         }
 574         else if (target_type == TYPE_SERVER)
 575         {
 576                 if (IS_LOCAL(user))
 577                 {
 578                         char* target = (char*)dest;
 579                         parameterlist par;
 580                         par.push_back(target);
 581                         par.push_back(":"+text);
 582                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 583                 }
 584         }
 585 }
 586
 587 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 588 {
 589         AutoConnectServers(curtime);
 590         DoPingChecks(curtime);
 591         DoConnectTimeout(curtime);
 592 }
 593
 594 void ModuleSpanningTree::OnUserConnect(User* user)
 595 {
 596         if (user->quitting)
 597                 return;
 598
 599         parameterlist params;
 600         params.push_back(user->uuid);
 601         params.push_back(ConvToStr(user->age));
 602         params.push_back(user->nick);
 603         params.push_back(user->host);
 604         params.push_back(user->dhost);
 605         params.push_back(user->ident);
 606         params.push_back(user->GetIPString());
 607         params.push_back(ConvToStr(user->signon));
 608         params.push_back("+"+std::string(user->FormatModes(true)));
 609         params.push_back(":"+std::string(user->fullname));
 610         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 611
 612         Utils->TreeRoot->SetUserCount(1); // increment by 1
 613 }
 614
 615 void ModuleSpanningTree::OnUserJoin(Membership* memb, bool sync, bool created, CUList& excepts)
 616 {
 617         // Only do this for local users
 618         if (IS_LOCAL(memb->user))
 619         {
 620                 parameterlist params;
 621                 // set up their permissions and the channel TS with FJOIN.
 622                 // All users are FJOINed now, because a module may specify
 623                 // new joining permissions for the user.
 624                 params.push_back(memb->chan->name);
 625                 params.push_back(ConvToStr(memb->chan->age));
 626                 params.push_back(std::string("+") + memb->chan->ChanModes(true));
 627                 params.push_back(memb->modes+","+std::string(memb->user->uuid));
 628                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 629         }
 630 }
 631
 632 ModResult ModuleSpanningTree::OnChangeLocalUserHost(User* user, const std::string &newhost)
 633 {
 634         if (user->registered != REG_ALL)
 635                 return MOD_RES_PASSTHRU;
 636
 637         parameterlist params;
 638         params.push_back(newhost);
 639         Utils->DoOneToMany(user->uuid,"FHOST",params);
 640         return MOD_RES_PASSTHRU;
 641 }
 642
 643 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 644 {
 645         // only occurs for local clients
 646         if (user->registered != REG_ALL)
 647                 return;
 648
 649         parameterlist params;
 650         params.push_back(gecos);
 651         Utils->DoOneToMany(user->uuid,"FNAME",params);
 652 }
 653
 654 void ModuleSpanningTree::OnChangeIdent(User* user, const std::string &ident)
 655 {
 656         // only occurs for local clients
 657         if (user->registered != REG_ALL)
 658                 return;
 659
 660         parameterlist params;
 661         params.push_back(ident);
 662         Utils->DoOneToMany(user->uuid,"FIDENT",params);
 663 }
 664
 665 void ModuleSpanningTree::OnUserPart(Membership* memb, std::string &partmessage, CUList& excepts)
 666 {
 667         if (IS_LOCAL(memb->user))
 668         {
 669                 parameterlist params;
 670                 params.push_back(memb->chan->name);
 671                 if (!partmessage.empty())
 672                         params.push_back(":"+partmessage);
 673                 Utils->DoOneToMany(memb->user->uuid,"PART",params);
 674         }
 675 }
 676
 677 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 678 {
 679         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 680         {
 681                 parameterlist params;
 682
 683                 if (oper_message != reason)
 684                 {
 685                         params.push_back(":"+oper_message);
 686                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 687                 }
 688                 params.clear();
 689                 params.push_back(":"+reason);
 690                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 691         }
 692
 693         // Regardless, We need to modify the user Counts..
 694         TreeServer* SourceServer = Utils->FindServer(user->server);
 695         if (SourceServer)
 696         {
 697                 SourceServer->SetUserCount(-1); // decrement by 1
 698         }
 699 }
 700
 701 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 702 {
 703         if (IS_LOCAL(user))
 704         {
 705                 parameterlist params;
 706                 params.push_back(user->nick);
 707
 708                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 709                  */
 710                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 711                         user->age = ServerInstance->Time();
 712
 713                 params.push_back(ConvToStr(user->age));
 714                 Utils->DoOneToMany(user->uuid,"NICK",params);
 715         }
 716         else if (!loopCall && user->nick == user->uuid)
 717         {
 718                 parameterlist params;
 719                 params.push_back(user->uuid);
 720                 params.push_back(ConvToStr(user->age));
 721                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SAVE",params);
 722         }
 723 }
 724
 725 void ModuleSpanningTree::OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& excepts)
 726 {
 727         parameterlist params;
 728         params.push_back(memb->chan->name);
 729         params.push_back(memb->user->uuid);
 730         params.push_back(":"+reason);
 731         if (IS_LOCAL(source))
 732         {
 733                 Utils->DoOneToMany(source->uuid,"KICK",params);
 734         }
 735         else if (IS_SERVER(source) && source != Utils->ServerUser)
 736         {
 737                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 738         }
 739 }
 740
 741 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 742 {
 743         if (!IS_LOCAL(source))
 744                 return; // Only start routing if we're origin.
 745
 746         ServerInstance->OperQuit.set(dest, operreason);
 747         parameterlist params;
 748         params.push_back(":"+operreason);
 749         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 750         params.clear();
 751         params.push_back(dest->uuid);
 752         params.push_back(":"+reason);
 753         Utils->DoOneToMany(source->uuid,"KILL",params);
 754 }
 755
 756 void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 757 {
 758         ServerInstance->Logs->Log("remoterehash", DEBUG, "called with param %s", parameter.c_str());
 759
 760         // Send out to other servers
 761         if (!parameter.empty() && parameter[0] != '-')
 762         {
 763                 parameterlist params;
 764                 params.push_back(parameter);
 765                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 766         }
 767 }
 768
 769 void ModuleSpanningTree::OnRehash(User* user)
 770 {
 771         // Re-read config stuff
 772         Utils->ReadConfiguration(true);
 773 }
 774
 775 void ModuleSpanningTree::OnLoadModule(Module* mod)
 776 {
 777         this->RedoConfig(mod);
 778 }
 779
 780 void ModuleSpanningTree::OnUnloadModule(Module* mod)
 781 {
 782         this->RedoConfig(mod);
 783 }
 784
 785 void ModuleSpanningTree::RedoConfig(Module* mod)
 786 {
 787         /* If m_sha256.so is loaded (we use this for HMAC) or any module implementing a BufferedSocket interface is loaded,
 788          * then we need to re-read our config again taking this into account.
 789          */
 790         modulelist* ml = ServerInstance->Modules->FindInterface("BufferedSocketHook");
 791         bool IsBufferSocketModule = false;
 792
 793         /* Did we find any modules? */
 794         if (ml && std::find(ml->begin(), ml->end(), mod) != ml->end())
 795                 IsBufferSocketModule = true;
 796
 797         if (mod->ModuleSourceFile == "m_sha256.so" || IsBufferSocketModule)
 798         {
 799                 Utils->ReadConfiguration(true);
 800         }
 801 }
 802
 803 // note: the protocol does not allow direct umode +o except
 804 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 805 // locally.
 806 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 807 {
 808         if (IS_LOCAL(user))
 809         {
 810                 parameterlist params;
 811                 params.push_back(opertype);
 812                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 813         }
 814 }
 815
 816 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 817 {
 818         if (!x->IsBurstable() || loopCall)
 819                 return;
 820
 821         char data[MAXBUF];
 822         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
 823         ServerInstance->Config->ServerName.c_str(), (unsigned long)x->set_time, (unsigned long)x->duration, x->reason.c_str());
 824         parameterlist params;
 825         params.push_back(data);
 826
 827         if (!user)
 828         {
 829                 /* Server-set lines */
 830                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 831         }
 832         else if (IS_LOCAL(user))
 833         {
 834                 /* User-set lines */
 835                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 836         }
 837 }
 838
 839 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 840 {
 841         if (x->type == "K")
 842                 return;
 843
 844         char data[MAXBUF];
 845         snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
 846         parameterlist params;
 847         params.push_back(data);
 848
 849         if (!user)
 850         {
 851                 /* Server-unset lines */
 852                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 853         }
 854         else if (IS_LOCAL(user))
 855         {
 856                 /* User-unset lines */
 857                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 858         }
 859 }
 860
 861 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const parameterlist &text, const std::vector<TranslateType> &translate)
 862 {
 863         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 864         {
 865                 parameterlist params;
 866                 std::string command;
 867                 std::string output_text;
 868
 869                 ServerInstance->Parser->TranslateUIDs(translate, text, output_text);
 870
 871                 if (target_type == TYPE_USER)
 872                 {
 873                         User* u = (User*)dest;
 874                         params.push_back(u->uuid);
 875                         params.push_back(output_text);
 876                         command = "MODE";
 877                 }
 878                 else
 879                 {
 880                         Channel* c = (Channel*)dest;
 881                         params.push_back(c->name);
 882                         params.push_back(ConvToStr(c->age));
 883                         params.push_back(output_text);
 884                         command = "FMODE";
 885                 }
 886
 887                 Utils->DoOneToMany(user->uuid, command, params);
 888         }
 889 }
 890
 891 ModResult ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 892 {
 893         if (IS_LOCAL(user))
 894         {
 895                 if (awaymsg.empty())
 896                 {
 897                         parameterlist params;
 898                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 899                 }
 900                 else
 901                 {
 902                         parameterlist params;
 903                         params.push_back(ConvToStr(user->awaytime));
 904                         params.push_back(":" + awaymsg);
 905                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 906                 }
 907         }
 908
 909         return MOD_RES_PASSTHRU;
 910 }
 911
 912 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const parameterlist &modeline, const std::vector<TranslateType> &translate)
 913 {
 914         TreeSocket* s = (TreeSocket*)opaque;
 915         std::string output_text;
 916
 917         ServerInstance->Parser->TranslateUIDs(translate, modeline, output_text);
 918
 919         if (target)
 920         {
 921                 if (target_type == TYPE_USER)
 922                 {
 923                         User* u = (User*)target;
 924                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 925                 }
 926                 else if (target_type == TYPE_CHANNEL)
 927                 {
 928                         Channel* c = (Channel*)target;
 929                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 930                 }
 931         }
 932 }
 933
 934 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, Extensible* target, const std::string &extname, const std::string &extdata)
 935 {
 936         TreeSocket* s = static_cast<TreeSocket*>(opaque);
 937         User* u = dynamic_cast<User*>(target);
 938         Channel* c = dynamic_cast<Channel*>(target);
 939         if (u)
 940                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 941         else if (c)
 942                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 943         else if (!target)
 944                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 945 }
 946
 947 CullResult ModuleSpanningTree::cull()
 948 {
 949         Utils->cull();
 950         ServerInstance->Timers->DelTimer(RefreshTimer);
 951         ServerInstance->Modules->DoneWithInterface("BufferedSocketHook");
 952         return this->Module::cull();
 953 }
 954
 955 ModuleSpanningTree::~ModuleSpanningTree()
 956 {
 957         delete ServerInstance->PI;
 958         ServerInstance->PI = new ProtocolInterface;
 959
 960         /* This will also free the listeners */
 961         delete Utils;
 962
 963         delete command_rconnect;
 964         delete command_rsquit;
 965 }
 966
 967 Version ModuleSpanningTree::GetVersion()
 968 {
 969         return Version("Allows servers to be linked", VF_VENDOR);
 970 }
 971
 972 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 973  * so that any activity it sees is FINAL, e.g. we arent going to send out
 974  * a NICK message before m_cloaking has finished putting the +x on the user,
 975  * etc etc.
 976  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 977  * the module call queue.
 978  */
 979 void ModuleSpanningTree::Prioritize()
 980 {
 981         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 982 }
 983
 984 MODULE_INIT(ModuleSpanningTree)