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, I_OnUserJoin,
  52                 I_OnChangeLocalUserHost, I_OnChangeName, I_OnUserPart, I_OnUnloadModule, I_OnUserQuit,
  53                 I_OnUserPostNick, I_OnUserKick, I_OnRemoteKill, I_OnRehash, I_OnPreRehash, I_OnOper,
  54                 I_OnAddLine, I_OnDelLine, I_OnMode, I_OnLoadModule, I_OnStats, I_OnEvent, I_OnSetAway,
  55                 I_OnPostCommand, I_OnUserConnect
  56         };
  57         ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
  58
  59         delete ServerInstance->PI;
  60         ServerInstance->PI = new SpanningTreeProtocolInterface(this, Utils, ServerInstance);
  61         loopCall = false;
  62
  63         // update our local user count
  64         Utils->TreeRoot->SetUserCount(ServerInstance->Users->local_users.size());
  65 }
  66
  67 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
  68 {
  69         std::string Parent = Utils->TreeRoot->GetName();
  70         if (Current->GetParent())
  71         {
  72                 Parent = Current->GetParent()->GetName();
  73         }
  74         for (unsigned int q = 0; q < Current->ChildCount(); q++)
  75         {
  76                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str()))))
  77                 {
  78                         if (IS_OPER(user))
  79                         {
  80                                  ShowLinks(Current->GetChild(q),user,hops+1);
  81                         }
  82                 }
  83                 else
  84                 {
  85                         ShowLinks(Current->GetChild(q),user,hops+1);
  86                 }
  87         }
  88         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
  89         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!IS_OPER(user)))
  90                 return;
  91         /* Or if the server is hidden and they're not an oper */
  92         else if ((Current->Hidden) && (!IS_OPER(user)))
  93                 return;
  94
  95         user->WriteNumeric(364, "%s %s %s :%d %s",      user->nick.c_str(),Current->GetName().c_str(),
  96                         (Utils->FlatLinks && (!IS_OPER(user))) ? ServerInstance->Config->ServerName : Parent.c_str(),
  97                         (Utils->FlatLinks && (!IS_OPER(user))) ? 0 : hops,
  98                         Current->GetDesc().c_str());
  99 }
 100
 101 int ModuleSpanningTree::CountLocalServs()
 102 {
 103         return Utils->TreeRoot->ChildCount();
 104 }
 105
 106 int ModuleSpanningTree::CountServs()
 107 {
 108         return Utils->serverlist.size();
 109 }
 110
 111 void ModuleSpanningTree::HandleLinks(const std::vector<std::string>& parameters, User* user)
 112 {
 113         ShowLinks(Utils->TreeRoot,user,0);
 114         user->WriteNumeric(365, "%s * :End of /LINKS list.",user->nick.c_str());
 115         return;
 116 }
 117
 118 void ModuleSpanningTree::HandleLusers(const std::vector<std::string>& parameters, User* user)
 119 {
 120         unsigned int n_users = ServerInstance->Users->UserCount();
 121
 122         /* Only update these when someone wants to see them, more efficient */
 123         if ((unsigned int)ServerInstance->Users->LocalUserCount() > max_local)
 124                 max_local = ServerInstance->Users->LocalUserCount();
 125         if (n_users > max_global)
 126                 max_global = n_users;
 127
 128         unsigned int ulined_count = 0;
 129         unsigned int ulined_local_count = 0;
 130
 131         /* If ulined are hidden and we're not an oper, count the number of ulined servers hidden,
 132          * locally and globally (locally means directly connected to us)
 133          */
 134         if ((Utils->HideULines) && (!IS_OPER(user)))
 135         {
 136                 for (server_hash::iterator q = Utils->serverlist.begin(); q != Utils->serverlist.end(); q++)
 137                 {
 138                         if (ServerInstance->ULine(q->second->GetName().c_str()))
 139                         {
 140                                 ulined_count++;
 141                                 if (q->second->GetParent() == Utils->TreeRoot)
 142                                         ulined_local_count++;
 143                         }
 144                 }
 145         }
 146         user->WriteNumeric(251, "%s :There are %d users and %d invisible on %d servers",user->nick.c_str(),
 147                         n_users-ServerInstance->Users->ModeCount('i'),
 148                         ServerInstance->Users->ModeCount('i'),
 149                         ulined_count ? this->CountServs() - ulined_count : this->CountServs());
 150
 151         if (ServerInstance->Users->OperCount())
 152                 user->WriteNumeric(252, "%s %d :operator(s) online",user->nick.c_str(),ServerInstance->Users->OperCount());
 153
 154         if (ServerInstance->Users->UnregisteredUserCount())
 155                 user->WriteNumeric(253, "%s %d :unknown connections",user->nick.c_str(),ServerInstance->Users->UnregisteredUserCount());
 156
 157         if (ServerInstance->ChannelCount())
 158                 user->WriteNumeric(254, "%s %ld :channels formed",user->nick.c_str(),ServerInstance->ChannelCount());
 159
 160         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());
 161         user->WriteNumeric(265, "%s :Current Local Users: %d  Max: %d",user->nick.c_str(),ServerInstance->Users->LocalUserCount(),max_local);
 162         user->WriteNumeric(266, "%s :Current Global Users: %d  Max: %d",user->nick.c_str(),n_users,max_global);
 163         return;
 164 }
 165
 166 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 167 {
 168         time_t mins_up = secs / 60;
 169         time_t hours_up = mins_up / 60;
 170         time_t days_up = hours_up / 24;
 171         secs = secs % 60;
 172         mins_up = mins_up % 60;
 173         hours_up = hours_up % 24;
 174         return ((days_up ? (ConvToStr(days_up) + "d") : std::string(""))
 175                         + (hours_up ? (ConvToStr(hours_up) + "h") : std::string(""))
 176                         + (mins_up ? (ConvToStr(mins_up) + "m") : std::string(""))
 177                         + ConvToStr(secs) + "s");
 178 }
 179
 180 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 181 {
 182         /*
 183          * Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 184          * This prevents lost REMOTECONNECT notices
 185          */
 186         timeval t;
 187         gettimeofday(&t, NULL);
 188         long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
 189
 190         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 191         {
 192                 TreeServer *s = i->second;
 193
 194                 // Fix for bug #792, do not ping servers that are not connected yet!
 195                 // Remote servers have Socket == NULL and local connected servers have
 196                 // Socket->LinkState == CONNECTED
 197                 if (s->GetSocket() && s->GetSocket()->GetLinkState() != CONNECTED)
 198                         continue;
 199
 200                 // Now do PING checks on all servers
 201                 TreeServer *mts = Utils->BestRouteTo(s->GetID());
 202
 203                 if (mts)
 204                 {
 205                         // Only ping if this server needs one
 206                         if (curtime >= s->NextPingTime())
 207                         {
 208                                 // And if they answered the last
 209                                 if (s->AnsweredLastPing())
 210                                 {
 211                                         // They did, send a ping to them
 212                                         s->SetNextPingTime(curtime + Utils->PingFreq);
 213                                         TreeSocket *tsock = mts->GetSocket();
 214
 215                                         // ... if we can find a proper route to them
 216                                         if (tsock)
 217                                         {
 218                                                 tsock->WriteLine(std::string(":") + ServerInstance->Config->GetSID() + " PING " +
 219                                                                 ServerInstance->Config->GetSID() + " " + s->GetID());
 220                                                 s->LastPingMsec = ts;
 221                                         }
 222                                 }
 223                                 else
 224                                 {
 225                                         // They didn't answer the last ping, if they are locally connected, get rid of them.
 226                                         TreeSocket *sock = s->GetSocket();
 227                                         if (sock)
 228                                         {
 229                                                 sock->SendError("Ping timeout");
 230                                                 sock->Squit(s,"Ping timeout");
 231                                                 ServerInstance->SE->DelFd(sock);
 232                                                 sock->Close();
 233                                                 return;
 234                                         }
 235                                 }
 236                         }
 237
 238                         // If warn on ping enabled and not warned and the difference is sufficient and they didn't answer the last ping...
 239                         if ((Utils->PingWarnTime) && (!s->Warned) && (curtime >= s->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!s->AnsweredLastPing()))
 240                         {
 241                                 /* The server hasnt responded, send a warning to opers */
 242                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", s->GetName().c_str(), Utils->PingWarnTime);
 243                                 s->Warned = true;
 244                         }
 245                 }
 246         }
 247 }
 248
 249 void ModuleSpanningTree::ConnectServer(Link* x)
 250 {
 251         bool ipvalid = true;
 252
 253         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 254         {
 255                 this->ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
 256                 return;
 257         }
 258
 259         QueryType start_type = DNS_QUERY_A;
 260         start_type = DNS_QUERY_AAAA;
 261         if (strchr(x->IPAddr.c_str(),':'))
 262         {
 263                 in6_addr n;
 264                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 265                         ipvalid = false;
 266         }
 267         else
 268         {
 269                 in_addr n;
 270                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 271                         ipvalid = false;
 272         }
 273
 274         /* Do we already have an IP? If so, no need to resolve it. */
 275         if (ipvalid)
 276         {
 277                 /* Gave a hook, but it wasnt one we know */
 278                 if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
 279                         return;
 280                 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()]);
 281                 if (newsocket->GetFd() > -1)
 282                 {
 283                         /* Handled automatically on success */
 284                 }
 285                 else
 286                 {
 287                         this->ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
 288                         if (ServerInstance->SocketCull.find(newsocket) == ServerInstance->SocketCull.end())
 289                                 ServerInstance->SocketCull[newsocket] = newsocket;
 290                         Utils->DoFailOver(x);
 291                 }
 292         }
 293         else
 294         {
 295                 try
 296                 {
 297                         bool cached;
 298                         ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x, cached, start_type);
 299                         ServerInstance->AddResolver(snr, cached);
 300                 }
 301                 catch (ModuleException& e)
 302                 {
 303                         this->ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 304                         Utils->DoFailOver(x);
 305                 }
 306         }
 307 }
 308
 309 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 310 {
 311         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 312         {
 313                 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
 314                 {
 315                         x->NextConnectTime = curtime + x->AutoConnect;
 316                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 317                         if (x->FailOver.length())
 318                         {
 319                                 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
 320                                 if (CheckFailOver)
 321                                 {
 322                                         /* The failover for this server is currently a member of the network.
 323                                          * The failover probably succeeded, where the main link did not.
 324                                          * Don't try the main link until the failover is gone again.
 325                                          */
 326                                         continue;
 327                                 }
 328                         }
 329                         if (!CheckDupe)
 330                         {
 331                                 // an autoconnected server is not connected. Check if its time to connect it
 332                                 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
 333                                 this->ConnectServer(&(*x));
 334                         }
 335                 }
 336         }
 337 }
 338
 339 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 340 {
 341         std::vector<Link*> failovers;
 342         for (std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin(); i != Utils->timeoutlist.end(); i++)
 343         {
 344                 TreeSocket* s = i->first;
 345                 std::pair<std::string, int> p = i->second;
 346                 if (curtime > s->age + p.second)
 347                 {
 348                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 349                         ServerInstance->SE->DelFd(s);
 350                         s->Close();
 351                         Link* MyLink = Utils->FindLink(p.first);
 352                         if (MyLink)
 353                                 failovers.push_back(MyLink);
 354                 }
 355         }
 356         /* Trigger failover for each timed out socket */
 357         for (std::vector<Link*>::const_iterator n = failovers.begin(); n != failovers.end(); ++n)
 358         {
 359                 Utils->DoFailOver(*n);
 360         }
 361 }
 362
 363 int ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 364 {
 365         // we've already checked if pcnt > 0, so this is safe
 366         TreeServer* found = Utils->FindServerMask(parameters[0]);
 367         if (found)
 368         {
 369                 std::string Version = found->GetVersion();
 370                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 371                 if (found == Utils->TreeRoot)
 372                 {
 373                         ServerInstance->Config->Send005(user);
 374                 }
 375         }
 376         else
 377         {
 378                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 379         }
 380         return 1;
 381 }
 382
 383 /* This method will attempt to get a message to a remote user.
 384  */
 385 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 386 {
 387         char text[MAXBUF];
 388         va_list argsPtr;
 389
 390         va_start(argsPtr, format);
 391         vsnprintf(text, MAXBUF, format, argsPtr);
 392         va_end(argsPtr);
 393
 394         if (IS_LOCAL(user))
 395                 user->WriteServ("NOTICE %s :%s", user->nick.c_str(), text);
 396         else
 397                 ServerInstance->PI->SendUserNotice(user, text);
 398 }
 399
 400 int ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 401 {
 402         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 403         {
 404                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 405                 {
 406                         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 407                         {
 408                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
 409                                 return 1;
 410                         }
 411
 412                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 413                         if (!CheckDupe)
 414                         {
 415                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 416                                 ConnectServer(&(*x));
 417                                 return 1;
 418                         }
 419                         else
 420                         {
 421                                 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());
 422                                 return 1;
 423                         }
 424                 }
 425         }
 426         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 427         return 1;
 428 }
 429
 430 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 431 {
 432         TreeServer* s = Utils->FindServer(servername);
 433         if (s)
 434         {
 435                 description = s->GetDesc();
 436         }
 437 }
 438
 439 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 440 {
 441         if (IS_LOCAL(source))
 442         {
 443                 parameterlist params;
 444                 params.push_back(dest->uuid);
 445                 params.push_back(channel->name);
 446                 params.push_back(ConvToStr(expiry));
 447                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 448         }
 449 }
 450
 451 void ModuleSpanningTree::OnPostLocalTopicChange(User* user, Channel* chan, const std::string &topic)
 452 {
 453         parameterlist params;
 454         params.push_back(chan->name);
 455         params.push_back(":"+topic);
 456         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 457 }
 458
 459 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 460 {
 461         if (IS_LOCAL(user))
 462         {
 463                 parameterlist params;
 464                 params.push_back(":"+text);
 465                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 466         }
 467 }
 468
 469 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 470 {
 471         /* Server origin */
 472         if (user == NULL)
 473                 return;
 474
 475         if (target_type == TYPE_USER)
 476         {
 477                 User* d = (User*)dest;
 478                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 479                 {
 480                         parameterlist params;
 481                         params.push_back(d->uuid);
 482                         params.push_back(":"+text);
 483                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 484                 }
 485         }
 486         else if (target_type == TYPE_CHANNEL)
 487         {
 488                 if (IS_LOCAL(user))
 489                 {
 490                         Channel *c = (Channel*)dest;
 491                         if (c)
 492                         {
 493                                 std::string cname = c->name;
 494                                 if (status)
 495                                         cname = status + cname;
 496                                 TreeServerList list;
 497                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 498                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 499                                 {
 500                                         TreeSocket* Sock = i->second->GetSocket();
 501                                         if (Sock)
 502                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 503                                 }
 504                         }
 505                 }
 506         }
 507         else if (target_type == TYPE_SERVER)
 508         {
 509                 if (IS_LOCAL(user))
 510                 {
 511                         char* target = (char*)dest;
 512                         parameterlist par;
 513                         par.push_back(target);
 514                         par.push_back(":"+text);
 515                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 516                 }
 517         }
 518 }
 519
 520 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 521 {
 522         /* Server origin */
 523         if (user == NULL)
 524                 return;
 525
 526         if (target_type == TYPE_USER)
 527         {
 528                 // route private messages which are targetted at clients only to the server
 529                 // which needs to receive them
 530                 User* d = (User*)dest;
 531                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 532                 {
 533                         parameterlist params;
 534                         params.push_back(d->uuid);
 535                         params.push_back(":"+text);
 536                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 537                 }
 538         }
 539         else if (target_type == TYPE_CHANNEL)
 540         {
 541                 if (IS_LOCAL(user))
 542                 {
 543                         Channel *c = (Channel*)dest;
 544                         if (c)
 545                         {
 546                                 std::string cname = c->name;
 547                                 if (status)
 548                                         cname = status + cname;
 549                                 TreeServerList list;
 550                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 551                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 552                                 {
 553                                         TreeSocket* Sock = i->second->GetSocket();
 554                                         if (Sock)
 555                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 556                                 }
 557                         }
 558                 }
 559         }
 560         else if (target_type == TYPE_SERVER)
 561         {
 562                 if (IS_LOCAL(user))
 563                 {
 564                         char* target = (char*)dest;
 565                         parameterlist par;
 566                         par.push_back(target);
 567                         par.push_back(":"+text);
 568                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 569                 }
 570         }
 571 }
 572
 573 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 574 {
 575         AutoConnectServers(curtime);
 576         DoPingChecks(curtime);
 577         DoConnectTimeout(curtime);
 578 }
 579
 580 void ModuleSpanningTree::OnUserConnect(User* user)
 581 {
 582         if (user->quitting)
 583                 return;
 584
 585         parameterlist params;
 586         params.push_back(user->uuid);
 587         params.push_back(ConvToStr(user->age));
 588         params.push_back(user->nick);
 589         params.push_back(user->host);
 590         params.push_back(user->dhost);
 591         params.push_back(user->ident);
 592         params.push_back(user->GetIPString());
 593         params.push_back(ConvToStr(user->signon));
 594         params.push_back("+"+std::string(user->FormatModes(true)));
 595         params.push_back(":"+std::string(user->fullname));
 596         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 597
 598         Utils->TreeRoot->SetUserCount(1); // increment by 1
 599 }
 600
 601 void ModuleSpanningTree::OnUserJoin(User* user, Channel* channel, bool sync, bool &silent, bool created)
 602 {
 603         // Only do this for local users
 604         if (IS_LOCAL(user))
 605         {
 606                 parameterlist params;
 607                 // set up their permissions and the channel TS with FJOIN.
 608                 // All users are FJOINed now, because a module may specify
 609                 // new joining permissions for the user.
 610                 params.push_back(channel->name);
 611                 params.push_back(ConvToStr(channel->age));
 612                 params.push_back(std::string("+") + channel->ChanModes(true));
 613                 params.push_back(ServerInstance->Modes->ModeString(user, channel, false)+","+std::string(user->uuid));
 614                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 615         }
 616 }
 617
 618 int ModuleSpanningTree::OnChangeLocalUserHost(User* user, const std::string &newhost)
 619 {
 620         if (user->registered != REG_ALL)
 621                 return 0;
 622
 623         parameterlist params;
 624         params.push_back(newhost);
 625         Utils->DoOneToMany(user->uuid,"FHOST",params);
 626         return 0;
 627 }
 628
 629 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 630 {
 631         // only occurs for local clients
 632         if (user->registered != REG_ALL)
 633                 return;
 634
 635         parameterlist params;
 636         params.push_back(gecos);
 637         Utils->DoOneToMany(user->uuid,"FNAME",params);
 638 }
 639
 640 void ModuleSpanningTree::OnUserPart(User* user, Channel* channel,  std::string &partmessage, bool &silent)
 641 {
 642         if (IS_LOCAL(user))
 643         {
 644                 parameterlist params;
 645                 params.push_back(channel->name);
 646                 if (!partmessage.empty())
 647                         params.push_back(":"+partmessage);
 648                 Utils->DoOneToMany(user->uuid,"PART",params);
 649         }
 650 }
 651
 652 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 653 {
 654         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 655         {
 656                 parameterlist params;
 657
 658                 if (oper_message != reason)
 659                 {
 660                         params.push_back(":"+oper_message);
 661                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 662                 }
 663                 params.clear();
 664                 params.push_back(":"+reason);
 665                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 666         }
 667
 668         // Regardless, We need to modify the user Counts..
 669         TreeServer* SourceServer = Utils->FindServer(user->server);
 670         if (SourceServer)
 671         {
 672                 SourceServer->SetUserCount(-1); // decrement by 1
 673         }
 674 }
 675
 676 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 677 {
 678         if (IS_LOCAL(user))
 679         {
 680                 parameterlist params;
 681                 params.push_back(user->nick);
 682
 683                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 684                  */
 685                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 686                         user->age = ServerInstance->Time();
 687
 688                 params.push_back(ConvToStr(user->age));
 689                 Utils->DoOneToMany(user->uuid,"NICK",params);
 690         }
 691 }
 692
 693 void ModuleSpanningTree::OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
 694 {
 695         parameterlist params;
 696         params.push_back(chan->name);
 697         params.push_back(user->uuid);
 698         params.push_back(":"+reason);
 699         if (IS_LOCAL(source))
 700         {
 701                 Utils->DoOneToMany(source->uuid,"KICK",params);
 702         }
 703         else if (IS_FAKE(source) && source != Utils->ServerUser)
 704         {
 705                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 706         }
 707 }
 708
 709 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 710 {
 711         if (!IS_LOCAL(source))
 712                 return; // Only start routing if we're origin.
 713
 714         parameterlist params;
 715         params.push_back(":"+reason);
 716         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 717         params.clear();
 718         params.push_back(dest->uuid);
 719         params.push_back(":"+reason);
 720         dest->SetOperQuit(operreason);
 721         Utils->DoOneToMany(source->uuid,"KILL",params);
 722 }
 723
 724 void ModuleSpanningTree::OnPreRehash(User* user, const std::string &parameter)
 725 {
 726         ServerInstance->Logs->Log("remoterehash", DEBUG, "called with param %s", parameter.c_str());
 727
 728         // Send out to other servers
 729         if (!parameter.empty() && parameter[0] != '-')
 730         {
 731                 parameterlist params;
 732                 params.push_back(parameter);
 733                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 734         }
 735 }
 736
 737 void ModuleSpanningTree::OnRehash(User* user)
 738 {
 739         // Re-read config stuff
 740         Utils->ReadConfiguration(true);
 741 }
 742
 743 void ModuleSpanningTree::OnLoadModule(Module* mod, const std::string &name)
 744 {
 745         this->RedoConfig(mod, name);
 746 }
 747
 748 void ModuleSpanningTree::OnUnloadModule(Module* mod, const std::string &name)
 749 {
 750         this->RedoConfig(mod, name);
 751 }
 752
 753 void ModuleSpanningTree::RedoConfig(Module* mod, const std::string &name)
 754 {
 755         /* If m_sha256.so is loaded (we use this for HMAC) or any module implementing a BufferedSocket interface is loaded,
 756          * then we need to re-read our config again taking this into account.
 757          */
 758         modulelist* ml = ServerInstance->Modules->FindInterface("BufferedSocketHook");
 759         bool IsBufferSocketModule = false;
 760
 761         /* Did we find any modules? */
 762         if (ml && std::find(ml->begin(), ml->end(), mod) != ml->end())
 763                 IsBufferSocketModule = true;
 764
 765         if (name == "m_sha256.so" || IsBufferSocketModule)
 766         {
 767                 Utils->ReadConfiguration(true);
 768         }
 769 }
 770
 771 // note: the protocol does not allow direct umode +o except
 772 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 773 // locally.
 774 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 775 {
 776         if (IS_LOCAL(user))
 777         {
 778                 parameterlist params;
 779                 params.push_back(opertype);
 780                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 781         }
 782 }
 783
 784 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 785 {
 786         if (!x->IsBurstable() || loopCall)
 787                 return;
 788
 789         char data[MAXBUF];
 790         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
 791         ServerInstance->Config->ServerName, (unsigned long)x->set_time, (unsigned long)x->duration, x->reason);
 792         parameterlist params;
 793         params.push_back(data);
 794
 795         if (!user)
 796         {
 797                 /* Server-set lines */
 798                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 799         }
 800         else if (IS_LOCAL(user))
 801         {
 802                 /* User-set lines */
 803                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 804         }
 805 }
 806
 807 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 808 {
 809         if (x->type == "K")
 810                 return;
 811
 812         char data[MAXBUF];
 813         snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
 814         parameterlist params;
 815         params.push_back(data);
 816
 817         if (!user)
 818         {
 819                 /* Server-unset lines */
 820                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 821         }
 822         else if (IS_LOCAL(user))
 823         {
 824                 /* User-unset lines */
 825                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 826         }
 827 }
 828
 829 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const parameterlist &text, const std::vector<TranslateType> &translate)
 830 {
 831         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 832         {
 833                 parameterlist params;
 834                 std::string command;
 835                 std::string output_text;
 836
 837                 ServerInstance->Parser->TranslateUIDs(translate, text, output_text);
 838
 839                 if (target_type == TYPE_USER)
 840                 {
 841                         User* u = (User*)dest;
 842                         params.push_back(u->uuid);
 843                         params.push_back(output_text);
 844                         command = "MODE";
 845                 }
 846                 else
 847                 {
 848                         Channel* c = (Channel*)dest;
 849                         params.push_back(c->name);
 850                         params.push_back(ConvToStr(c->age));
 851                         params.push_back(output_text);
 852                         command = "FMODE";
 853                 }
 854
 855                 Utils->DoOneToMany(user->uuid, command, params);
 856         }
 857 }
 858
 859 int ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 860 {
 861         if (IS_LOCAL(user))
 862         {
 863                 if (awaymsg.empty())
 864                 {
 865                         parameterlist params;
 866                         params.clear();
 867                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 868                 }
 869                 else
 870                 {
 871                         parameterlist params;
 872                         params.push_back(":" + awaymsg);
 873                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 874                 }
 875         }
 876
 877         return 0;
 878 }
 879
 880 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const parameterlist &modeline, const std::vector<TranslateType> &translate)
 881 {
 882         TreeSocket* s = (TreeSocket*)opaque;
 883         std::string output_text;
 884
 885         ServerInstance->Parser->TranslateUIDs(translate, modeline, output_text);
 886
 887         if (target)
 888         {
 889                 if (target_type == TYPE_USER)
 890                 {
 891                         User* u = (User*)target;
 892                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 893                 }
 894                 else if (target_type == TYPE_CHANNEL)
 895                 {
 896                         Channel* c = (Channel*)target;
 897                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 898                 }
 899         }
 900 }
 901
 902 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, TargetTypeFlags target_type, void* target, const std::string &extname, const std::string &extdata)
 903 {
 904         TreeSocket* s = (TreeSocket*)opaque;
 905         if (target)
 906         {
 907                 if (target_type == TYPE_USER)
 908                 {
 909                         User* u = (User*)target;
 910                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 911                 }
 912                 else if (target_type == TYPE_CHANNEL)
 913                 {
 914                         Channel* c = (Channel*)target;
 915                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 916                 }
 917         }
 918         if (target_type == TYPE_OTHER)
 919         {
 920                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 921         }
 922 }
 923
 924 void ModuleSpanningTree::OnEvent(Event* event)
 925 {
 926         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")
 927                 || (event->GetEventID() == "send_modeset") || (event->GetEventID() == "send_snoset") || (event->GetEventID() == "send_push"))
 928         {
 929                 ServerInstance->Logs->Log("m_spanningtree", DEBUG, "WARNING: Deprecated use of old 1.1 style m_spanningtree event ignored, type '"+event->GetEventID()+"'!");
 930         }
 931 }
 932
 933 ModuleSpanningTree::~ModuleSpanningTree()
 934 {
 935         delete ServerInstance->PI;
 936         ServerInstance->PI = new ProtocolInterface(ServerInstance);
 937
 938         /* This will also free the listeners */
 939         delete Utils;
 940
 941         delete command_rconnect;
 942         delete command_rsquit;
 943
 944         ServerInstance->Timers->DelTimer(RefreshTimer);
 945
 946         ServerInstance->Modules->DoneWithInterface("BufferedSocketHook");
 947 }
 948
 949 Version ModuleSpanningTree::GetVersion()
 950 {
 951         return Version("$Id$", VF_VENDOR, API_VERSION);
 952 }
 953
 954 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 955  * so that any activity it sees is FINAL, e.g. we arent going to send out
 956  * a NICK message before m_cloaking has finished putting the +x on the user,
 957  * etc etc.
 958  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 959  * the module call queue.
 960  */
 961 void ModuleSpanningTree::Prioritize()
 962 {
 963         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 964 }
 965
 966 MODULE_INIT(ModuleSpanningTree)