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 "commands/cmd_whois.h"
  18 #include "commands/cmd_stats.h"
  19 #include "socket.h"
  20 #include "xline.h"
  21 #include "transport.h"
  22
  23 #include "m_spanningtree/cachetimer.h"
  24 #include "m_spanningtree/resolvers.h"
  25 #include "m_spanningtree/main.h"
  26 #include "m_spanningtree/utils.h"
  27 #include "m_spanningtree/treeserver.h"
  28 #include "m_spanningtree/link.h"
  29 #include "m_spanningtree/treesocket.h"
  30 #include "m_spanningtree/rconnect.h"
  31 #include "m_spanningtree/rsquit.h"
  32 #include "m_spanningtree/protocolinterface.h"
  33
  34 /* $ModDep: m_spanningtree/cachetimer.h m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h m_spanningtree/rconnect.h m_spanningtree/rsquit.h m_spanningtree/protocolinterface.h */
  35
  36 ModuleSpanningTree::ModuleSpanningTree(InspIRCd* Me)
  37         : Module(Me), max_local(0), max_global(0)
  38 {
  39         ServerInstance->Modules->UseInterface("BufferedSocketHook");
  40         Utils = new SpanningTreeUtilities(ServerInstance, this);
  41         command_rconnect = new CommandRConnect(ServerInstance, this, Utils);
  42         ServerInstance->AddCommand(command_rconnect);
  43         command_rsquit = new CommandRSQuit(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_OnChangeLocalUserHost, I_OnChangeName, I_OnUserPart, I_OnUnloadModule,
  53                 I_OnUserQuit, I_OnUserPostNick, I_OnUserKick, I_OnRemoteKill, I_OnRehash,
  54                 I_OnOper, I_OnAddLine, I_OnDelLine, I_ProtoSendMode, I_OnMode, I_OnLoadModule,
  55                 I_OnStats, I_ProtoSendMetaData, I_OnEvent, I_OnSetAway, I_OnPostCommand
  56         };
  57         ServerInstance->Modules->Attach(eventlist, this, 29);
  58
  59         delete ServerInstance->PI;
  60         ServerInstance->PI = new SpanningTreeProtocolInterface(this, Utils, ServerInstance);
  61
  62         for (std::vector<User*>::const_iterator i = ServerInstance->Users->local_users.begin(); i != ServerInstance->Users->local_users.end(); i++)
  63         {
  64                 ServerInstance->PI->Introduce(*i);
  65         }
  66 }
  67
  68 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
  69 {
  70         std::string Parent = Utils->TreeRoot->GetName();
  71         if (Current->GetParent())
  72         {
  73                 Parent = Current->GetParent()->GetName();
  74         }
  75         for (unsigned int q = 0; q < Current->ChildCount(); q++)
  76         {
  77                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str()))))
  78                 {
  79                         if (IS_OPER(user))
  80                         {
  81                                  ShowLinks(Current->GetChild(q),user,hops+1);
  82                         }
  83                 }
  84                 else
  85                 {
  86                         ShowLinks(Current->GetChild(q),user,hops+1);
  87                 }
  88         }
  89         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
  90         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!IS_OPER(user)))
  91                 return;
  92         /* Or if the server is hidden and they're not an oper */
  93         else if ((Current->Hidden) && (!IS_OPER(user)))
  94                 return;
  95
  96         user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick.c_str(),Current->GetName().c_str(),
  97                         (Utils->FlatLinks && (!IS_OPER(user))) ? ServerInstance->Config->ServerName : Parent.c_str(),
  98                         (Utils->FlatLinks && (!IS_OPER(user))) ? 0 : hops,
  99                         Current->GetDesc().c_str());
 100 }
 101
 102 int ModuleSpanningTree::CountLocalServs()
 103 {
 104         return Utils->TreeRoot->ChildCount();
 105 }
 106
 107 int ModuleSpanningTree::CountServs()
 108 {
 109         return Utils->serverlist.size();
 110 }
 111
 112 void ModuleSpanningTree::HandleLinks(const std::vector<std::string>& parameters, User* user)
 113 {
 114         ShowLinks(Utils->TreeRoot,user,0);
 115         user->WriteNumeric(365, "%s * :End of /LINKS list.",user->nick.c_str());
 116         return;
 117 }
 118
 119 void ModuleSpanningTree::HandleLusers(const std::vector<std::string>& parameters, User* user)
 120 {
 121         unsigned int n_users = ServerInstance->Users->UserCount();
 122
 123         /* Only update these when someone wants to see them, more efficient */
 124         if ((unsigned int)ServerInstance->Users->LocalUserCount() > max_local)
 125                 max_local = ServerInstance->Users->LocalUserCount();
 126         if (n_users > max_global)
 127                 max_global = n_users;
 128
 129         unsigned int ulined_count = 0;
 130         unsigned int ulined_local_count = 0;
 131
 132         /* If ulined are hidden and we're not an oper, count the number of ulined servers hidden,
 133          * locally and globally (locally means directly connected to us)
 134          */
 135         if ((Utils->HideULines) && (!IS_OPER(user)))
 136         {
 137                 for (server_hash::iterator q = Utils->serverlist.begin(); q != Utils->serverlist.end(); q++)
 138                 {
 139                         if (ServerInstance->ULine(q->second->GetName().c_str()))
 140                         {
 141                                 ulined_count++;
 142                                 if (q->second->GetParent() == Utils->TreeRoot)
 143                                         ulined_local_count++;
 144                         }
 145                 }
 146         }
 147         user->WriteNumeric(251, "%s :There are %d users and %d invisible on %d servers",user->nick.c_str(),
 148                         n_users-ServerInstance->Users->ModeCount('i'),
 149                         ServerInstance->Users->ModeCount('i'),
 150                         ulined_count ? this->CountServs() - ulined_count : this->CountServs());
 151
 152         if (ServerInstance->Users->OperCount())
 153                 user->WriteNumeric(252, "%s %d :operator(s) online",user->nick.c_str(),ServerInstance->Users->OperCount());
 154
 155         if (ServerInstance->Users->UnregisteredUserCount())
 156                 user->WriteNumeric(253, "%s %d :unknown connections",user->nick.c_str(),ServerInstance->Users->UnregisteredUserCount());
 157
 158         if (ServerInstance->ChannelCount())
 159                 user->WriteNumeric(254, "%s %ld :channels formed",user->nick.c_str(),ServerInstance->ChannelCount());
 160
 161         user->WriteNumeric(255, "%s :I have %d clients and %d servers",user->nick.c_str(),ServerInstance->Users->LocalUserCount(),ulined_local_count ? this->CountLocalServs() - ulined_local_count : this->CountLocalServs());
 162         user->WriteNumeric(265, "%s :Current Local Users: %d  Max: %d",user->nick.c_str(),ServerInstance->Users->LocalUserCount(),max_local);
 163         user->WriteNumeric(266, "%s :Current Global Users: %d  Max: %d",user->nick.c_str(),n_users,max_global);
 164         return;
 165 }
 166
 167 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 168 {
 169         time_t mins_up = secs / 60;
 170         time_t hours_up = mins_up / 60;
 171         time_t days_up = hours_up / 24;
 172         secs = secs % 60;
 173         mins_up = mins_up % 60;
 174         hours_up = hours_up % 24;
 175         return ((days_up ? (ConvToStr(days_up) + "d") : std::string(""))
 176                         + (hours_up ? (ConvToStr(hours_up) + "h") : std::string(""))
 177                         + (mins_up ? (ConvToStr(mins_up) + "m") : std::string(""))
 178                         + ConvToStr(secs) + "s");
 179 }
 180
 181 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 182 {
 183         /*
 184          * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 185          * This prevents lost REMOTECONNECT notices
 186          */
 187         timeval t;
 188         gettimeofday(&t, NULL);
 189         long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
 190
 191         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 192         {
 193                 TreeServer *s = i->second;
 194
 195                 // Fix for bug #792, do not ping servers that are not connected yet!
 196                 // Remote servers have Socket == NULL and local connected servers have
 197                 // Socket->LinkState == CONNECTED
 198                 if (s->GetSocket() && s->GetSocket()->GetLinkState() != CONNECTED)
 199                         continue;
 200
 201                 // Now do PING checks on all servers
 202                 TreeServer *mts = Utils->BestRouteTo(s->GetID());
 203
 204                 if (mts)
 205                 {
 206                         // Only ping if this server needs one
 207                         if (curtime >= s->NextPingTime())
 208                         {
 209                                 // And if they answered the last
 210                                 if (s->AnsweredLastPing())
 211                                 {
 212                                         // They did, send a ping to them
 213                                         s->SetNextPingTime(curtime + Utils->PingFreq);
 214                                         TreeSocket *tsock = mts->GetSocket();
 215
 216                                         // ... if we can find a proper route to them
 217                                         if (tsock)
 218                                         {
 219                                                 tsock->WriteLine(std::string(":") + ServerInstance->Config->GetSID() + " PING " +
 220                                                                 ServerInstance->Config->GetSID() + " " + s->GetID());
 221                                                 s->LastPingMsec = ts;
 222                                         }
 223                                 }
 224                                 else
 225                                 {
 226                                         // They didn't answer the last ping, if they are locally connected, get rid of them.
 227                                         TreeSocket *sock = s->GetSocket();
 228                                         if (sock)
 229                                         {
 230                                                 sock->SendError("Ping timeout");
 231                                                 sock->Squit(s,"Ping timeout");
 232                                                 ServerInstance->SE->DelFd(sock);
 233                                                 sock->Close();
 234                                                 return;
 235                                         }
 236                                 }
 237                         }
 238
 239                         // If warn on ping enabled and not warned and the difference is sufficient and they didn't answer the last ping...
 240                         if ((Utils->PingWarnTime) && (!s->Warned) && (curtime >= s->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!s->AnsweredLastPing()))
 241                         {
 242                                 /* The server hasnt responded, send a warning to opers */
 243                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", s->GetName().c_str(), Utils->PingWarnTime);
 244                                 s->Warned = true;
 245                         }
 246                 }
 247         }
 248 }
 249
 250 void ModuleSpanningTree::ConnectServer(Link* x)
 251 {
 252         bool ipvalid = true;
 253
 254         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 255         {
 256                 this->ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
 257                 return;
 258         }
 259
 260         QueryType start_type = DNS_QUERY_A;
 261 #ifdef IPV6
 262         start_type = DNS_QUERY_AAAA;
 263         if (strchr(x->IPAddr.c_str(),':'))
 264         {
 265                 in6_addr n;
 266                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 267                         ipvalid = false;
 268         }
 269         else
 270 #endif
 271         {
 272                 in_addr n;
 273                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 274                         ipvalid = false;
 275         }
 276
 277         /* Do we already have an IP? If so, no need to resolve it. */
 278         if (ipvalid)
 279         {
 280                 /* Gave a hook, but it wasnt one we know */
 281                 if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
 282                         return;
 283                 TreeSocket* newsocket = new TreeSocket(Utils, ServerInstance, x->IPAddr,x->Port, x->Timeout ? x->Timeout : 10,x->Name.c_str(), x->Bind, x->Hook.empty() ? NULL : Utils->hooks[x->Hook.c_str()]);
 284                 if (newsocket->GetFd() > -1)
 285                 {
 286                         /* Handled automatically on success */
 287                 }
 288                 else
 289                 {
 290                         this->ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
 291                         if (ServerInstance->SocketCull.find(newsocket) == ServerInstance->SocketCull.end())
 292                                 ServerInstance->SocketCull[newsocket] = newsocket;
 293                         Utils->DoFailOver(x);
 294                 }
 295         }
 296         else
 297         {
 298                 try
 299                 {
 300                         bool cached;
 301                         ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x, cached, start_type);
 302                         ServerInstance->AddResolver(snr, cached);
 303                 }
 304                 catch (ModuleException& e)
 305                 {
 306                         this->ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 307                         Utils->DoFailOver(x);
 308                 }
 309         }
 310 }
 311
 312 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 313 {
 314         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 315         {
 316                 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
 317                 {
 318                         x->NextConnectTime = curtime + x->AutoConnect;
 319                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 320                         if (x->FailOver.length())
 321                         {
 322                                 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
 323                                 if (CheckFailOver)
 324                                 {
 325                                         /* The failover for this server is currently a member of the network.
 326                                          * The failover probably succeeded, where the main link did not.
 327                                          * Don't try the main link until the failover is gone again.
 328                                          */
 329                                         continue;
 330                                 }
 331                         }
 332                         if (!CheckDupe)
 333                         {
 334                                 // an autoconnected server is not connected. Check if its time to connect it
 335                                 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
 336                                 this->ConnectServer(&(*x));
 337                         }
 338                 }
 339         }
 340 }
 341
 342 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 343 {
 344         std::vector<Link*> failovers;
 345         for (std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin(); i != Utils->timeoutlist.end(); i++)
 346         {
 347                 TreeSocket* s = i->first;
 348                 std::pair<std::string, int> p = i->second;
 349                 if (curtime > s->age + p.second)
 350                 {
 351                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 352                         ServerInstance->SE->DelFd(s);
 353                         s->Close();
 354                         Link* MyLink = Utils->FindLink(p.first);
 355                         if (MyLink)
 356                                 failovers.push_back(MyLink);
 357                 }
 358         }
 359         /* Trigger failover for each timed out socket */
 360         for (std::vector<Link*>::const_iterator n = failovers.begin(); n != failovers.end(); ++n)
 361         {
 362                 Utils->DoFailOver(*n);
 363         }
 364 }
 365
 366 int ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 367 {
 368         // we've already checked if pcnt > 0, so this is safe
 369         TreeServer* found = Utils->FindServerMask(parameters[0]);
 370         if (found)
 371         {
 372                 std::string Version = found->GetVersion();
 373                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 374                 if (found == Utils->TreeRoot)
 375                 {
 376                         ServerInstance->Config->Send005(user);
 377                 }
 378         }
 379         else
 380         {
 381                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 382         }
 383         return 1;
 384 }
 385
 386 /* This method will attempt to get a message to a remote user.
 387  */
 388 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 389 {
 390         char text[MAXBUF];
 391         va_list argsPtr;
 392
 393         va_start(argsPtr, format);
 394         vsnprintf(text, MAXBUF, format, argsPtr);
 395         va_end(argsPtr);
 396
 397         if (IS_LOCAL(user))
 398                 user->WriteServ("NOTICE %s :%s", user->nick.c_str(), text);
 399         else
 400                 ServerInstance->PI->SendUserNotice(user, text);
 401 }
 402
 403 int ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 404 {
 405         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 406         {
 407                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 408                 {
 409                         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 410                         {
 411                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
 412                                 return 1;
 413                         }
 414
 415                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 416                         if (!CheckDupe)
 417                         {
 418                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 419                                 ConnectServer(&(*x));
 420                                 return 1;
 421                         }
 422                         else
 423                         {
 424                                 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());
 425                                 return 1;
 426                         }
 427                 }
 428         }
 429         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 430         return 1;
 431 }
 432
 433 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 434 {
 435         TreeServer* s = Utils->FindServer(servername);
 436         if (s)
 437         {
 438                 description = s->GetDesc();
 439         }
 440 }
 441
 442 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 443 {
 444         if (IS_LOCAL(source))
 445         {
 446                 std::deque<std::string> params;
 447                 params.push_back(dest->uuid);
 448                 params.push_back(channel->name);
 449                 params.push_back(ConvToStr(expiry));
 450                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 451         }
 452 }
 453
 454 void ModuleSpanningTree::OnPostLocalTopicChange(User* user, Channel* chan, const std::string &topic)
 455 {
 456         std::deque<std::string> params;
 457         params.push_back(chan->name);
 458         params.push_back(":"+topic);
 459         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 460 }
 461
 462 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 463 {
 464         if (IS_LOCAL(user))
 465         {
 466                 std::deque<std::string> params;
 467                 params.push_back(":"+text);
 468                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 469         }
 470 }
 471
 472 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 473 {
 474         /* Server origin */
 475         if (user == NULL)
 476                 return;
 477
 478         if (target_type == TYPE_USER)
 479         {
 480                 User* d = (User*)dest;
 481                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 482                 {
 483                         std::deque<std::string> params;
 484                         params.clear();
 485                         params.push_back(d->uuid);
 486                         params.push_back(":"+text);
 487                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 488                 }
 489         }
 490         else if (target_type == TYPE_CHANNEL)
 491         {
 492                 if (IS_LOCAL(user))
 493                 {
 494                         Channel *c = (Channel*)dest;
 495                         if (c)
 496                         {
 497                                 std::string cname = c->name;
 498                                 if (status)
 499                                         cname = status + cname;
 500                                 TreeServerList list;
 501                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 502                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 503                                 {
 504                                         TreeSocket* Sock = i->second->GetSocket();
 505                                         if (Sock)
 506                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 507                                 }
 508                         }
 509                 }
 510         }
 511         else if (target_type == TYPE_SERVER)
 512         {
 513                 if (IS_LOCAL(user))
 514                 {
 515                         char* target = (char*)dest;
 516                         std::deque<std::string> par;
 517                         par.push_back(target);
 518                         par.push_back(":"+text);
 519                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 520                 }
 521         }
 522 }
 523
 524 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 525 {
 526         /* Server origin */
 527         if (user == NULL)
 528                 return;
 529
 530         if (target_type == TYPE_USER)
 531         {
 532                 // route private messages which are targetted at clients only to the server
 533                 // which needs to receive them
 534                 User* d = (User*)dest;
 535                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 536                 {
 537                         std::deque<std::string> params;
 538                         params.clear();
 539                         params.push_back(d->uuid);
 540                         params.push_back(":"+text);
 541                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 542                 }
 543         }
 544         else if (target_type == TYPE_CHANNEL)
 545         {
 546                 if (IS_LOCAL(user))
 547                 {
 548                         Channel *c = (Channel*)dest;
 549                         if (c)
 550                         {
 551                                 std::string cname = c->name;
 552                                 if (status)
 553                                         cname = status + cname;
 554                                 TreeServerList list;
 555                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 556                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 557                                 {
 558                                         TreeSocket* Sock = i->second->GetSocket();
 559                                         if (Sock)
 560                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 561                                 }
 562                         }
 563                 }
 564         }
 565         else if (target_type == TYPE_SERVER)
 566         {
 567                 if (IS_LOCAL(user))
 568                 {
 569                         char* target = (char*)dest;
 570                         std::deque<std::string> par;
 571                         par.push_back(target);
 572                         par.push_back(":"+text);
 573                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 574                 }
 575         }
 576 }
 577
 578 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 579 {
 580         AutoConnectServers(curtime);
 581         DoPingChecks(curtime);
 582         DoConnectTimeout(curtime);
 583 }
 584
 585 void ModuleSpanningTree::OnUserJoin(User* user, Channel* channel, bool sync, bool &silent)
 586 {
 587         // Only do this for local users
 588         if (IS_LOCAL(user))
 589         {
 590                 std::deque<std::string> params;
 591                 // set up their permissions and the channel TS with FJOIN.
 592                 // All users are FJOINed now, because a module may specify
 593                 // new joining permissions for the user.
 594                 params.push_back(channel->name);
 595                 params.push_back(ConvToStr(channel->age));
 596                 params.push_back(std::string("+") + channel->ChanModes(true));
 597                 params.push_back(ServerInstance->Modes->ModeString(user, channel, false)+","+std::string(user->uuid));
 598                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 599         }
 600 }
 601
 602 int ModuleSpanningTree::OnChangeLocalUserHost(User* user, const std::string &newhost)
 603 {
 604         if (user->registered != REG_ALL)
 605                 return 0;
 606
 607         std::deque<std::string> params;
 608         params.push_back(newhost);
 609         Utils->DoOneToMany(user->uuid,"FHOST",params);
 610         return 0;
 611 }
 612
 613 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 614 {
 615         // only occurs for local clients
 616         if (user->registered != REG_ALL)
 617                 return;
 618
 619         std::deque<std::string> params;
 620         params.push_back(gecos);
 621         Utils->DoOneToMany(user->uuid,"FNAME",params);
 622 }
 623
 624 void ModuleSpanningTree::OnUserPart(User* user, Channel* channel,  std::string &partmessage, bool &silent)
 625 {
 626         if (IS_LOCAL(user))
 627         {
 628                 std::deque<std::string> params;
 629                 params.push_back(channel->name);
 630                 if (!partmessage.empty())
 631                         params.push_back(":"+partmessage);
 632                 Utils->DoOneToMany(user->uuid,"PART",params);
 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
 652         // Regardless, We need to modify the user Counts..
 653         TreeServer* SourceServer = Utils->FindServer(user->server);
 654         if (SourceServer)
 655         {
 656                 SourceServer->SetUserCount(-1); // decrement by 1
 657         }
 658 }
 659
 660 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 661 {
 662         if (IS_LOCAL(user))
 663         {
 664                 std::deque<std::string> params;
 665                 params.push_back(user->nick);
 666
 667                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 668                  */
 669                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 670                         user->age = ServerInstance->Time();
 671
 672                 params.push_back(ConvToStr(user->age));
 673                 Utils->DoOneToMany(user->uuid,"NICK",params);
 674         }
 675 }
 676
 677 void ModuleSpanningTree::OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
 678 {
 679         if ((source) && (IS_LOCAL(source)))
 680         {
 681                 std::deque<std::string> params;
 682                 params.push_back(chan->name);
 683                 params.push_back(user->uuid);
 684                 params.push_back(":"+reason);
 685                 Utils->DoOneToMany(source->uuid,"KICK",params);
 686         }
 687         else if (!source)
 688         {
 689                 std::deque<std::string> params;
 690                 params.push_back(chan->name);
 691                 params.push_back(user->uuid);
 692                 params.push_back(":"+reason);
 693                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 694         }
 695 }
 696
 697 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 698 {
 699         if (!IS_LOCAL(source))
 700                 return; // Only start routing if we're origin.
 701
 702         std::deque<std::string> params;
 703         params.push_back(":"+reason);
 704         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 705         params.clear();
 706         params.push_back(dest->uuid);
 707         params.push_back(":"+reason);
 708         dest->SetOperQuit(operreason);
 709         Utils->DoOneToMany(source->uuid,"KILL",params);
 710 }
 711
 712 void ModuleSpanningTree::OnRehash(User* user, const std::string &parameter)
 713 {
 714         ServerInstance->Logs->Log("remoterehash", DEBUG, "called with param %s", parameter.c_str());
 715
 716         // Send out to other servers
 717         if (!parameter.empty() && parameter[0] != '-')
 718         {
 719                 ServerInstance->Logs->Log("remoterehash", DEBUG, "sending out lol");
 720                 std::deque<std::string> params;
 721                 params.push_back(parameter);
 722                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 723         }
 724
 725         // Re-read config stuff
 726         Utils->ReadConfiguration(true);
 727 }
 728
 729 void ModuleSpanningTree::OnLoadModule(Module* mod, const std::string &name)
 730 {
 731         this->RedoConfig(mod, name);
 732 }
 733
 734 void ModuleSpanningTree::OnUnloadModule(Module* mod, const std::string &name)
 735 {
 736         this->RedoConfig(mod, name);
 737 }
 738
 739 void ModuleSpanningTree::RedoConfig(Module* mod, const std::string &name)
 740 {
 741         /* If m_sha256.so is loaded (we use this for HMAC) or any module implementing a BufferedSocket interface is loaded,
 742          * then we need to re-read our config again taking this into account.
 743          */
 744         modulelist* ml = ServerInstance->Modules->FindInterface("BufferedSocketHook");
 745         bool IsBufferSocketModule = false;
 746
 747         /* Did we find any modules? */
 748         if (ml && std::find(ml->begin(), ml->end(), mod) != ml->end())
 749                 IsBufferSocketModule = true;
 750
 751         if (name == "m_sha256.so" || IsBufferSocketModule)
 752         {
 753                 Utils->ReadConfiguration(true);
 754         }
 755 }
 756
 757 // note: the protocol does not allow direct umode +o except
 758 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 759 // locally.
 760 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 761 {
 762         if (IS_LOCAL(user))
 763         {
 764                 std::deque<std::string> params;
 765                 params.push_back(opertype);
 766                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 767         }
 768 }
 769
 770 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 771 {
 772         if (!x->IsBurstable())
 773                 return;
 774
 775         char data[MAXBUF];
 776         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
 777         ServerInstance->Config->ServerName, (unsigned long)x->set_time, (unsigned long)x->duration, x->reason);
 778         std::deque<std::string> params;
 779         params.push_back(data);
 780
 781         if (!user)
 782         {
 783                 /* Server-set lines */
 784                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 785         }
 786         else if (IS_LOCAL(user))
 787         {
 788                 /* User-set lines */
 789                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 790         }
 791 }
 792
 793 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 794 {
 795         if (x->type == "K")
 796                 return;
 797
 798         char data[MAXBUF];
 799         snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
 800         std::deque<std::string> params;
 801         params.push_back(data);
 802
 803         if (!user)
 804         {
 805                 /* Server-unset lines */
 806                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 807         }
 808         else if (IS_LOCAL(user))
 809         {
 810                 /* User-unset lines */
 811                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 812         }
 813 }
 814
 815 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const std::deque<std::string> &text, const std::deque<TranslateType> &translate)
 816 {
 817         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 818         {
 819                 std::deque<std::string> params;
 820                 std::string command;
 821                 std::string output_text;
 822
 823                 ServerInstance->Parser->TranslateUIDs(translate, text, output_text);
 824
 825                 if (target_type == TYPE_USER)
 826                 {
 827                         User* u = (User*)dest;
 828                         params.push_back(u->uuid);
 829                         params.push_back(output_text);
 830                         command = "MODE";
 831                 }
 832                 else
 833                 {
 834                         Channel* c = (Channel*)dest;
 835                         params.push_back(c->name);
 836                         params.push_back(ConvToStr(c->age));
 837                         params.push_back(output_text);
 838                         command = "FMODE";
 839                 }
 840
 841                 Utils->DoOneToMany(user->uuid, command, params);
 842         }
 843 }
 844
 845 int ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 846 {
 847         if (IS_LOCAL(user))
 848         {
 849                 if (awaymsg.empty())
 850                 {
 851                         std::deque<std::string> params;
 852                         params.clear();
 853                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 854                 }
 855                 else
 856                 {
 857                         std::deque<std::string> params;
 858                         params.push_back(":" + awaymsg);
 859                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 860                 }
 861         }
 862
 863         return 0;
 864 }
 865
 866 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const std::deque<std::string> &modeline, const std::deque<TranslateType> &translate)
 867 {
 868         TreeSocket* s = (TreeSocket*)opaque;
 869         std::string output_text;
 870
 871         ServerInstance->Parser->TranslateUIDs(translate, modeline, output_text);
 872
 873         if (target)
 874         {
 875                 if (target_type == TYPE_USER)
 876                 {
 877                         User* u = (User*)target;
 878                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 879                 }
 880                 else if (target_type == TYPE_CHANNEL)
 881                 {
 882                         Channel* c = (Channel*)target;
 883                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 884                 }
 885         }
 886 }
 887
 888 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, TargetTypeFlags target_type, void* target, const std::string &extname, const std::string &extdata)
 889 {
 890         TreeSocket* s = (TreeSocket*)opaque;
 891         if (target)
 892         {
 893                 if (target_type == TYPE_USER)
 894                 {
 895                         User* u = (User*)target;
 896                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 897                 }
 898                 else if (target_type == TYPE_CHANNEL)
 899                 {
 900                         Channel* c = (Channel*)target;
 901                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 902                 }
 903         }
 904         if (target_type == TYPE_OTHER)
 905         {
 906                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 907         }
 908 }
 909
 910 void ModuleSpanningTree::OnEvent(Event* event)
 911 {
 912         if ((event->GetEventID() == "send_encap") || (event->GetEventID() == "send_metadata") || (event->GetEventID() == "send_topic") || (event->GetEventID() == "send_mode") || (event->GetEventID() == "send_mode_explicit") || (event->GetEventID() == "send_opers")
 913                 || (event->GetEventID() == "send_modeset") || (event->GetEventID() == "send_snoset") || (event->GetEventID() == "send_push"))
 914         {
 915                 ServerInstance->Logs->Log("m_spanningtree", DEBUG, "WARNING: Deprecated use of old 1.1 style m_spanningtree event ignored, type '"+event->GetEventID()+"'!");
 916         }
 917 }
 918
 919 ModuleSpanningTree::~ModuleSpanningTree()
 920 {
 921         delete ServerInstance->PI;
 922         ServerInstance->PI = new ProtocolInterface(ServerInstance);
 923
 924         /* This will also free the listeners */
 925         delete Utils;
 926
 927         ServerInstance->Timers->DelTimer(RefreshTimer);
 928
 929         ServerInstance->Modules->DoneWithInterface("BufferedSocketHook");
 930 }
 931
 932 Version ModuleSpanningTree::GetVersion()
 933 {
 934         return Version("$Id$", VF_VENDOR, API_VERSION);
 935 }
 936
 937 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 938  * so that any activity it sees is FINAL, e.g. we arent going to send out
 939  * a NICK message before m_cloaking has finished putting the +x on the user,
 940  * etc etc.
 941  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 942  * the module call queue.
 943  */
 944 void ModuleSpanningTree::Prioritize()
 945 {
 946         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 947 }
 948
 949 MODULE_INIT(ModuleSpanningTree)