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