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         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 #ifdef IPV6
 263         start_type = DNS_QUERY_AAAA;
 264         if (strchr(x->IPAddr.c_str(),':'))
 265         {
 266                 in6_addr n;
 267                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 268                         ipvalid = false;
 269         }
 270         else
 271 #endif
 272         {
 273                 in_addr n;
 274                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 275                         ipvalid = false;
 276         }
 277
 278         /* Do we already have an IP? If so, no need to resolve it. */
 279         if (ipvalid)
 280         {
 281                 /* Gave a hook, but it wasnt one we know */
 282                 if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
 283                         return;
 284                 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()]);
 285                 if (newsocket->GetFd() > -1)
 286                 {
 287                         /* Handled automatically on success */
 288                 }
 289                 else
 290                 {
 291                         this->ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
 292                         if (ServerInstance->SocketCull.find(newsocket) == ServerInstance->SocketCull.end())
 293                                 ServerInstance->SocketCull[newsocket] = newsocket;
 294                         Utils->DoFailOver(x);
 295                 }
 296         }
 297         else
 298         {
 299                 try
 300                 {
 301                         bool cached;
 302                         ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x, cached, start_type);
 303                         ServerInstance->AddResolver(snr, cached);
 304                 }
 305                 catch (ModuleException& e)
 306                 {
 307                         this->ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 308                         Utils->DoFailOver(x);
 309                 }
 310         }
 311 }
 312
 313 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 314 {
 315         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 316         {
 317                 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
 318                 {
 319                         x->NextConnectTime = curtime + x->AutoConnect;
 320                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 321                         if (x->FailOver.length())
 322                         {
 323                                 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
 324                                 if (CheckFailOver)
 325                                 {
 326                                         /* The failover for this server is currently a member of the network.
 327                                          * The failover probably succeeded, where the main link did not.
 328                                          * Don't try the main link until the failover is gone again.
 329                                          */
 330                                         continue;
 331                                 }
 332                         }
 333                         if (!CheckDupe)
 334                         {
 335                                 // an autoconnected server is not connected. Check if its time to connect it
 336                                 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
 337                                 this->ConnectServer(&(*x));
 338                         }
 339                 }
 340         }
 341 }
 342
 343 void ModuleSpanningTree::DoConnectTimeout(time_t curtime)
 344 {
 345         std::vector<Link*> failovers;
 346         for (std::map<TreeSocket*, std::pair<std::string, int> >::iterator i = Utils->timeoutlist.begin(); i != Utils->timeoutlist.end(); i++)
 347         {
 348                 TreeSocket* s = i->first;
 349                 std::pair<std::string, int> p = i->second;
 350                 if (curtime > s->age + p.second)
 351                 {
 352                         ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002 (timeout of %d seconds)",p.first.c_str(),p.second);
 353                         ServerInstance->SE->DelFd(s);
 354                         s->Close();
 355                         Link* MyLink = Utils->FindLink(p.first);
 356                         if (MyLink)
 357                                 failovers.push_back(MyLink);
 358                 }
 359         }
 360         /* Trigger failover for each timed out socket */
 361         for (std::vector<Link*>::const_iterator n = failovers.begin(); n != failovers.end(); ++n)
 362         {
 363                 Utils->DoFailOver(*n);
 364         }
 365 }
 366
 367 int ModuleSpanningTree::HandleVersion(const std::vector<std::string>& parameters, User* user)
 368 {
 369         // we've already checked if pcnt > 0, so this is safe
 370         TreeServer* found = Utils->FindServerMask(parameters[0]);
 371         if (found)
 372         {
 373                 std::string Version = found->GetVersion();
 374                 user->WriteNumeric(351, "%s :%s",user->nick.c_str(),Version.c_str());
 375                 if (found == Utils->TreeRoot)
 376                 {
 377                         ServerInstance->Config->Send005(user);
 378                 }
 379         }
 380         else
 381         {
 382                 user->WriteNumeric(402, "%s %s :No such server",user->nick.c_str(),parameters[0].c_str());
 383         }
 384         return 1;
 385 }
 386
 387 /* This method will attempt to get a message to a remote user.
 388  */
 389 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 390 {
 391         char text[MAXBUF];
 392         va_list argsPtr;
 393
 394         va_start(argsPtr, format);
 395         vsnprintf(text, MAXBUF, format, argsPtr);
 396         va_end(argsPtr);
 397
 398         if (IS_LOCAL(user))
 399                 user->WriteServ("NOTICE %s :%s", user->nick.c_str(), text);
 400         else
 401                 ServerInstance->PI->SendUserNotice(user, text);
 402 }
 403
 404 int ModuleSpanningTree::HandleConnect(const std::vector<std::string>& parameters, User* user)
 405 {
 406         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 407         {
 408                 if (InspIRCd::Match(x->Name.c_str(),parameters[0]))
 409                 {
 410                         if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
 411                         {
 412                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 is ME, not connecting.",x->Name.c_str());
 413                                 return 1;
 414                         }
 415
 416                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 417                         if (!CheckDupe)
 418                         {
 419                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 420                                 ConnectServer(&(*x));
 421                                 return 1;
 422                         }
 423                         else
 424                         {
 425                                 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());
 426                                 return 1;
 427                         }
 428                 }
 429         }
 430         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0].c_str());
 431         return 1;
 432 }
 433
 434 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 435 {
 436         TreeServer* s = Utils->FindServer(servername);
 437         if (s)
 438         {
 439                 description = s->GetDesc();
 440         }
 441 }
 442
 443 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel, time_t expiry)
 444 {
 445         if (IS_LOCAL(source))
 446         {
 447                 std::deque<std::string> params;
 448                 params.push_back(dest->uuid);
 449                 params.push_back(channel->name);
 450                 params.push_back(ConvToStr(expiry));
 451                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 452         }
 453 }
 454
 455 void ModuleSpanningTree::OnPostLocalTopicChange(User* user, Channel* chan, const std::string &topic)
 456 {
 457         std::deque<std::string> params;
 458         params.push_back(chan->name);
 459         params.push_back(":"+topic);
 460         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 461 }
 462
 463 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 464 {
 465         if (IS_LOCAL(user))
 466         {
 467                 std::deque<std::string> params;
 468                 params.push_back(":"+text);
 469                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 470         }
 471 }
 472
 473 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 474 {
 475         /* Server origin */
 476         if (user == NULL)
 477                 return;
 478
 479         if (target_type == TYPE_USER)
 480         {
 481                 User* d = (User*)dest;
 482                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 483                 {
 484                         std::deque<std::string> params;
 485                         params.clear();
 486                         params.push_back(d->uuid);
 487                         params.push_back(":"+text);
 488                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 489                 }
 490         }
 491         else if (target_type == TYPE_CHANNEL)
 492         {
 493                 if (IS_LOCAL(user))
 494                 {
 495                         Channel *c = (Channel*)dest;
 496                         if (c)
 497                         {
 498                                 std::string cname = c->name;
 499                                 if (status)
 500                                         cname = status + cname;
 501                                 TreeServerList list;
 502                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 503                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 504                                 {
 505                                         TreeSocket* Sock = i->second->GetSocket();
 506                                         if (Sock)
 507                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 508                                 }
 509                         }
 510                 }
 511         }
 512         else if (target_type == TYPE_SERVER)
 513         {
 514                 if (IS_LOCAL(user))
 515                 {
 516                         char* target = (char*)dest;
 517                         std::deque<std::string> par;
 518                         par.push_back(target);
 519                         par.push_back(":"+text);
 520                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 521                 }
 522         }
 523 }
 524
 525 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 526 {
 527         /* Server origin */
 528         if (user == NULL)
 529                 return;
 530
 531         if (target_type == TYPE_USER)
 532         {
 533                 // route private messages which are targetted at clients only to the server
 534                 // which needs to receive them
 535                 User* d = (User*)dest;
 536                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 537                 {
 538                         std::deque<std::string> params;
 539                         params.clear();
 540                         params.push_back(d->uuid);
 541                         params.push_back(":"+text);
 542                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 543                 }
 544         }
 545         else if (target_type == TYPE_CHANNEL)
 546         {
 547                 if (IS_LOCAL(user))
 548                 {
 549                         Channel *c = (Channel*)dest;
 550                         if (c)
 551                         {
 552                                 std::string cname = c->name;
 553                                 if (status)
 554                                         cname = status + cname;
 555                                 TreeServerList list;
 556                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 557                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 558                                 {
 559                                         TreeSocket* Sock = i->second->GetSocket();
 560                                         if (Sock)
 561                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 562                                 }
 563                         }
 564                 }
 565         }
 566         else if (target_type == TYPE_SERVER)
 567         {
 568                 if (IS_LOCAL(user))
 569                 {
 570                         char* target = (char*)dest;
 571                         std::deque<std::string> par;
 572                         par.push_back(target);
 573                         par.push_back(":"+text);
 574                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 575                 }
 576         }
 577 }
 578
 579 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 580 {
 581         AutoConnectServers(curtime);
 582         DoPingChecks(curtime);
 583         DoConnectTimeout(curtime);
 584 }
 585
 586 void ModuleSpanningTree::OnUserJoin(User* user, Channel* channel, bool sync, bool &silent)
 587 {
 588         // Only do this for local users
 589         if (IS_LOCAL(user))
 590         {
 591                 std::deque<std::string> params;
 592                 // set up their permissions and the channel TS with FJOIN.
 593                 // All users are FJOINed now, because a module may specify
 594                 // new joining permissions for the user.
 595                 params.push_back(channel->name);
 596                 params.push_back(ConvToStr(channel->age));
 597                 params.push_back(std::string("+") + channel->ChanModes(true));
 598                 params.push_back(ServerInstance->Modes->ModeString(user, channel, false)+","+std::string(user->uuid));
 599                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 600         }
 601 }
 602
 603 int ModuleSpanningTree::OnChangeLocalUserHost(User* user, const std::string &newhost)
 604 {
 605         if (user->registered != REG_ALL)
 606                 return 0;
 607
 608         std::deque<std::string> params;
 609         params.push_back(newhost);
 610         Utils->DoOneToMany(user->uuid,"FHOST",params);
 611         return 0;
 612 }
 613
 614 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 615 {
 616         // only occurs for local clients
 617         if (user->registered != REG_ALL)
 618                 return;
 619
 620         std::deque<std::string> params;
 621         params.push_back(gecos);
 622         Utils->DoOneToMany(user->uuid,"FNAME",params);
 623 }
 624
 625 void ModuleSpanningTree::OnUserPart(User* user, Channel* channel,  std::string &partmessage, bool &silent)
 626 {
 627         if (IS_LOCAL(user))
 628         {
 629                 std::deque<std::string> params;
 630                 params.push_back(channel->name);
 631                 if (!partmessage.empty())
 632                         params.push_back(":"+partmessage);
 633                 Utils->DoOneToMany(user->uuid,"PART",params);
 634         }
 635 }
 636
 637 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 638 {
 639         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 640         {
 641                 std::deque<std::string> params;
 642
 643                 if (oper_message != reason)
 644                 {
 645                         params.push_back(":"+oper_message);
 646                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 647                 }
 648                 params.clear();
 649                 params.push_back(":"+reason);
 650                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 651         }
 652
 653         // Regardless, We need to modify the user Counts..
 654         TreeServer* SourceServer = Utils->FindServer(user->server);
 655         if (SourceServer)
 656         {
 657                 SourceServer->SetUserCount(-1); // decrement by 1
 658         }
 659 }
 660
 661 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 662 {
 663         if (IS_LOCAL(user))
 664         {
 665                 std::deque<std::string> params;
 666                 params.push_back(user->nick);
 667
 668                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 669                  */
 670                 if (irc::string(user->nick.c_str()) != assign(oldnick))
 671                         user->age = ServerInstance->Time();
 672
 673                 params.push_back(ConvToStr(user->age));
 674                 Utils->DoOneToMany(user->uuid,"NICK",params);
 675         }
 676 }
 677
 678 void ModuleSpanningTree::OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
 679 {
 680         if (loopCall)
 681                 return;
 682         if ((source) && (IS_LOCAL(source)))
 683         {
 684                 std::deque<std::string> params;
 685                 params.push_back(chan->name);
 686                 params.push_back(user->uuid);
 687                 params.push_back(":"+reason);
 688                 Utils->DoOneToMany(source->uuid,"KICK",params);
 689         }
 690         else if (!source)
 691         {
 692                 std::deque<std::string> params;
 693                 params.push_back(chan->name);
 694                 params.push_back(user->uuid);
 695                 params.push_back(":"+reason);
 696                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 697         }
 698 }
 699
 700 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 701 {
 702         if (!IS_LOCAL(source))
 703                 return; // Only start routing if we're origin.
 704
 705         std::deque<std::string> params;
 706         params.push_back(":"+reason);
 707         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 708         params.clear();
 709         params.push_back(dest->uuid);
 710         params.push_back(":"+reason);
 711         dest->SetOperQuit(operreason);
 712         Utils->DoOneToMany(source->uuid,"KILL",params);
 713 }
 714
 715 void ModuleSpanningTree::OnRehash(User* user, const std::string &parameter)
 716 {
 717         ServerInstance->Logs->Log("remoterehash", DEBUG, "called with param %s", parameter.c_str());
 718
 719         // Send out to other servers
 720         if (!parameter.empty() && parameter[0] != '-')
 721         {
 722                 ServerInstance->Logs->Log("remoterehash", DEBUG, "sending out lol");
 723                 std::deque<std::string> params;
 724                 params.push_back(parameter);
 725                 Utils->DoOneToAllButSender(user ? user->uuid : ServerInstance->Config->GetSID(), "REHASH", params, user ? user->server : ServerInstance->Config->ServerName);
 726         }
 727
 728         // Re-read config stuff
 729         Utils->ReadConfiguration(true);
 730 }
 731
 732 void ModuleSpanningTree::OnLoadModule(Module* mod, const std::string &name)
 733 {
 734         this->RedoConfig(mod, name);
 735 }
 736
 737 void ModuleSpanningTree::OnUnloadModule(Module* mod, const std::string &name)
 738 {
 739         this->RedoConfig(mod, name);
 740 }
 741
 742 void ModuleSpanningTree::RedoConfig(Module* mod, const std::string &name)
 743 {
 744         /* If m_sha256.so is loaded (we use this for HMAC) or any module implementing a BufferedSocket interface is loaded,
 745          * then we need to re-read our config again taking this into account.
 746          */
 747         modulelist* ml = ServerInstance->Modules->FindInterface("BufferedSocketHook");
 748         bool IsBufferSocketModule = false;
 749
 750         /* Did we find any modules? */
 751         if (ml && std::find(ml->begin(), ml->end(), mod) != ml->end())
 752                 IsBufferSocketModule = true;
 753
 754         if (name == "m_sha256.so" || IsBufferSocketModule)
 755         {
 756                 Utils->ReadConfiguration(true);
 757         }
 758 }
 759
 760 // note: the protocol does not allow direct umode +o except
 761 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 762 // locally.
 763 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 764 {
 765         if (IS_LOCAL(user))
 766         {
 767                 std::deque<std::string> params;
 768                 params.push_back(opertype);
 769                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 770         }
 771 }
 772
 773 void ModuleSpanningTree::OnAddLine(User* user, XLine *x)
 774 {
 775         if (!x->IsBurstable() || loopCall)
 776                 return;
 777
 778         char data[MAXBUF];
 779         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", x->type.c_str(), x->Displayable(),
 780         ServerInstance->Config->ServerName, (unsigned long)x->set_time, (unsigned long)x->duration, x->reason);
 781         std::deque<std::string> params;
 782         params.push_back(data);
 783
 784         if (!user)
 785         {
 786                 /* Server-set lines */
 787                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 788         }
 789         else if (IS_LOCAL(user))
 790         {
 791                 /* User-set lines */
 792                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 793         }
 794 }
 795
 796 void ModuleSpanningTree::OnDelLine(User* user, XLine *x)
 797 {
 798         if (x->type == "K")
 799                 return;
 800
 801         char data[MAXBUF];
 802         snprintf(data,MAXBUF,"%s %s", x->type.c_str(), x->Displayable());
 803         std::deque<std::string> params;
 804         params.push_back(data);
 805
 806         if (!user)
 807         {
 808                 /* Server-unset lines */
 809                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 810         }
 811         else if (IS_LOCAL(user))
 812         {
 813                 /* User-unset lines */
 814                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 815         }
 816 }
 817
 818 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const std::deque<std::string> &text, const std::deque<TranslateType> &translate)
 819 {
 820         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 821         {
 822                 std::deque<std::string> params;
 823                 std::string command;
 824                 std::string output_text;
 825
 826                 ServerInstance->Parser->TranslateUIDs(translate, text, output_text);
 827
 828                 if (target_type == TYPE_USER)
 829                 {
 830                         User* u = (User*)dest;
 831                         params.push_back(u->uuid);
 832                         params.push_back(output_text);
 833                         command = "MODE";
 834                 }
 835                 else
 836                 {
 837                         Channel* c = (Channel*)dest;
 838                         params.push_back(c->name);
 839                         params.push_back(ConvToStr(c->age));
 840                         params.push_back(output_text);
 841                         command = "FMODE";
 842                 }
 843
 844                 Utils->DoOneToMany(user->uuid, command, params);
 845         }
 846 }
 847
 848 int ModuleSpanningTree::OnSetAway(User* user, const std::string &awaymsg)
 849 {
 850         if (IS_LOCAL(user))
 851         {
 852                 if (awaymsg.empty())
 853                 {
 854                         std::deque<std::string> params;
 855                         params.clear();
 856                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 857                 }
 858                 else
 859                 {
 860                         std::deque<std::string> params;
 861                         params.push_back(":" + awaymsg);
 862                         Utils->DoOneToMany(user->uuid,"AWAY",params);
 863                 }
 864         }
 865
 866         return 0;
 867 }
 868
 869 void ModuleSpanningTree::ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const std::deque<std::string> &modeline, const std::deque<TranslateType> &translate)
 870 {
 871         TreeSocket* s = (TreeSocket*)opaque;
 872         std::string output_text;
 873
 874         ServerInstance->Parser->TranslateUIDs(translate, modeline, output_text);
 875
 876         if (target)
 877         {
 878                 if (target_type == TYPE_USER)
 879                 {
 880                         User* u = (User*)target;
 881                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" MODE "+u->uuid+" "+output_text);
 882                 }
 883                 else if (target_type == TYPE_CHANNEL)
 884                 {
 885                         Channel* c = (Channel*)target;
 886                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 887                 }
 888         }
 889 }
 890
 891 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, TargetTypeFlags target_type, void* target, const std::string &extname, const std::string &extdata)
 892 {
 893         TreeSocket* s = (TreeSocket*)opaque;
 894         if (target)
 895         {
 896                 if (target_type == TYPE_USER)
 897                 {
 898                         User* u = (User*)target;
 899                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 900                 }
 901                 else if (target_type == TYPE_CHANNEL)
 902                 {
 903                         Channel* c = (Channel*)target;
 904                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 905                 }
 906         }
 907         if (target_type == TYPE_OTHER)
 908         {
 909                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 910         }
 911 }
 912
 913 void ModuleSpanningTree::OnEvent(Event* event)
 914 {
 915         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")
 916                 || (event->GetEventID() == "send_modeset") || (event->GetEventID() == "send_snoset") || (event->GetEventID() == "send_push"))
 917         {
 918                 ServerInstance->Logs->Log("m_spanningtree", DEBUG, "WARNING: Deprecated use of old 1.1 style m_spanningtree event ignored, type '"+event->GetEventID()+"'!");
 919         }
 920 }
 921
 922 ModuleSpanningTree::~ModuleSpanningTree()
 923 {
 924         delete ServerInstance->PI;
 925         ServerInstance->PI = new ProtocolInterface(ServerInstance);
 926
 927         /* This will also free the listeners */
 928         delete Utils;
 929
 930         ServerInstance->Timers->DelTimer(RefreshTimer);
 931
 932         ServerInstance->Modules->DoneWithInterface("BufferedSocketHook");
 933 }
 934
 935 Version ModuleSpanningTree::GetVersion()
 936 {
 937         return Version("$Id$", VF_VENDOR, API_VERSION);
 938 }
 939
 940 /* It is IMPORTANT that m_spanningtree is the last module in the chain
 941  * so that any activity it sees is FINAL, e.g. we arent going to send out
 942  * a NICK message before m_cloaking has finished putting the +x on the user,
 943  * etc etc.
 944  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
 945  * the module call queue.
 946  */
 947 void ModuleSpanningTree::Prioritize()
 948 {
 949         ServerInstance->Modules->SetPriority(this, PRIORITY_LAST);
 950 }
 951
 952 MODULE_INIT(ModuleSpanningTree)