src/modules/m_spanningtree/main.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/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 "wildcard.h"
  21 #include "xline.h"
  22 #include "transport.h"
  23
  24 #include "m_spanningtree/timesynctimer.h"
  25 #include "m_spanningtree/resolvers.h"
  26 #include "m_spanningtree/main.h"
  27 #include "m_spanningtree/utils.h"
  28 #include "m_spanningtree/treeserver.h"
  29 #include "m_spanningtree/link.h"
  30 #include "m_spanningtree/treesocket.h"
  31 #include "m_spanningtree/rconnect.h"
  32 #include "m_spanningtree/rsquit.h"
  33
  34 /* $ModDep: m_spanningtree/timesynctimer.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 */
  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(Me, this);
  41         command_rconnect = new cmd_rconnect(ServerInstance, this, Utils);
  42         ServerInstance->AddCommand(command_rconnect);
  43         command_rsquit = new cmd_rsquit(ServerInstance, this, Utils);
  44         ServerInstance->AddCommand(command_rsquit);
  45         if (Utils->EnableTimeSync)
  46         {
  47                 SyncTimer = new TimeSyncTimer(ServerInstance, this);
  48                 ServerInstance->Timers->AddTimer(SyncTimer);
  49         }
  50         else
  51                 SyncTimer = NULL;
  52
  53         RefreshTimer = new CacheRefreshTimer(ServerInstance, Utils);
  54         ServerInstance->Timers->AddTimer(RefreshTimer);
  55
  56         Implementation eventlist[] =
  57         {
  58                 I_OnPreCommand, I_OnGetServerDescription, I_OnUserInvite, I_OnPostLocalTopicChange,
  59                 I_OnWallops, I_OnUserNotice, I_OnUserMessage, I_OnBackgroundTimer,
  60                 I_OnUserJoin, I_OnChangeHost, I_OnChangeName, I_OnUserPart, I_OnUserConnect,
  61                 I_OnUserQuit, I_OnUserPostNick, I_OnUserKick, I_OnRemoteKill, I_OnRehash,
  62                 I_OnOper, I_OnAddLine, I_OnDelLine, I_ProtoSendMode, I_OnMode,
  63                 I_OnStats, I_ProtoSendMetaData, I_OnEvent, I_OnSetAway, I_OnCancelAway, I_OnPostCommand
  64         };
  65         ServerInstance->Modules->Attach(eventlist, this, 29);
  66 }
  67
  68 void ModuleSpanningTree::ShowLinks(TreeServer* Current, User* user, int hops)
  69 {
  70         std::string Parent = Utils->TreeRoot->GetName();
  71         if (Current->GetParent())
  72         {
  73                 Parent = Current->GetParent()->GetName();
  74         }
  75         for (unsigned int q = 0; q < Current->ChildCount(); q++)
  76         {
  77                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str()))))
  78                 {
  79                         if (*user->oper)
  80                         {
  81                                  ShowLinks(Current->GetChild(q),user,hops+1);
  82                         }
  83                 }
  84                 else
  85                 {
  86                         ShowLinks(Current->GetChild(q),user,hops+1);
  87                 }
  88         }
  89         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
  90         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!IS_OPER(user)))
  91                 return;
  92         /* Or if the server is hidden and they're not an oper */
  93         else if ((Current->Hidden) && (!IS_OPER(user)))
  94                 return;
  95
  96         user->WriteServ("364 %s %s %s :%d %s",  user->nick,Current->GetName().c_str(),
  97                         (Utils->FlatLinks && (!IS_OPER(user))) ? ServerInstance->Config->ServerName : Parent.c_str(),
  98                         (Utils->FlatLinks && (!IS_OPER(user))) ? 0 : hops,
  99                         Current->GetDesc().c_str());
 100 }
 101
 102 int ModuleSpanningTree::CountLocalServs()
 103 {
 104         return Utils->TreeRoot->ChildCount();
 105 }
 106
 107 int ModuleSpanningTree::CountServs()
 108 {
 109         return Utils->serverlist.size();
 110 }
 111
 112 void ModuleSpanningTree::HandleLinks(const char** parameters, int pcnt, User* user)
 113 {
 114         ShowLinks(Utils->TreeRoot,user,0);
 115         user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
 116         return;
 117 }
 118
 119 void ModuleSpanningTree::HandleLusers(const char** parameters, int pcnt, User* user)
 120 {
 121         unsigned int n_users = ServerInstance->UserCount();
 122
 123         /* Only update these when someone wants to see them, more efficient */
 124         if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
 125                 max_local = ServerInstance->LocalUserCount();
 126         if (n_users > max_global)
 127                 max_global = n_users;
 128
 129         unsigned int ulined_count = 0;
 130         unsigned int ulined_local_count = 0;
 131
 132         /* If ulined are hidden and we're not an oper, count the number of ulined servers hidden,
 133          * locally and globally (locally means directly connected to us)
 134          */
 135         if ((Utils->HideULines) && (!*user->oper))
 136         {
 137                 for (server_hash::iterator q = Utils->serverlist.begin(); q != Utils->serverlist.end(); q++)
 138                 {
 139                         if (ServerInstance->ULine(q->second->GetName().c_str()))
 140                         {
 141                                 ulined_count++;
 142                                 if (q->second->GetParent() == Utils->TreeRoot)
 143                                         ulined_local_count++;
 144                         }
 145                 }
 146         }
 147         user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,
 148                         n_users-ServerInstance->ModeCount('i'),
 149                         ServerInstance->ModeCount('i'),
 150                         ulined_count ? this->CountServs() - ulined_count : this->CountServs());
 151
 152         if (ServerInstance->OperCount())
 153                 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
 154
 155         if (ServerInstance->UnregisteredUserCount())
 156                 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
 157
 158         if (ServerInstance->ChannelCount())
 159                 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
 160
 161         user->WriteServ("255 %s :I have %d clients and %d servers",user->nick,ServerInstance->LocalUserCount(),ulined_local_count ? this->CountLocalServs() - ulined_local_count : this->CountLocalServs());
 162         user->WriteServ("265 %s :Current Local Users: %d  Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
 163         user->WriteServ("266 %s :Current Global Users: %d  Max: %d",user->nick,n_users,max_global);
 164         return;
 165 }
 166
 167 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 168 {
 169         time_t mins_up = secs / 60;
 170         time_t hours_up = mins_up / 60;
 171         time_t days_up = hours_up / 24;
 172         secs = secs % 60;
 173         mins_up = mins_up % 60;
 174         hours_up = hours_up % 24;
 175         return ((days_up ? (ConvToStr(days_up) + "d") : std::string(""))
 176                         + (hours_up ? (ConvToStr(hours_up) + "h") : std::string(""))
 177                         + (mins_up ? (ConvToStr(mins_up) + "m") : std::string(""))
 178                         + ConvToStr(secs) + "s");
 179 }
 180
 181 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 182 {
 183         for (unsigned int j = 0; j < Utils->TreeRoot->ChildCount(); j++)
 184         {
 185                 TreeServer* serv = Utils->TreeRoot->GetChild(j);
 186                 TreeSocket* sock = serv->GetSocket();
 187                 if (sock)
 188                 {
 189                         if (curtime >= serv->NextPingTime())
 190                         {
 191                                 if (serv->AnsweredLastPing())
 192                                 {
 193                                         sock->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" PING "+serv->GetID());
 194                                         serv->SetNextPingTime(curtime + Utils->PingFreq);
 195                                         serv->LastPing = curtime;
 196                                         timeval t;
 197                                         gettimeofday(&t, NULL);
 198                                         long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
 199                                         serv->LastPingMsec = ts;
 200                                         serv->Warned = false;
 201                                 }
 202                                 else
 203                                 {
 204                                         /* they didnt answer, boot them */
 205                                         sock->SendError("Ping timeout");
 206                                         sock->Squit(serv,"Ping timeout");
 207                                         ServerInstance->SE->DelFd(sock);
 208                                         sock->Close();
 209                                         return;
 210                                 }
 211                         }
 212                         else if ((Utils->PingWarnTime) && (!serv->Warned) && (curtime >= serv->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!serv->AnsweredLastPing()))
 213                         {
 214                                 /* The server hasnt responded, send a warning to opers */
 215                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", serv->GetName().c_str(), Utils->PingWarnTime);
 216                                 serv->Warned = true;
 217                         }
 218                 }
 219         }
 220
 221         /* Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 222          * This prevents lost REMOTECONNECT notices
 223          */
 224         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 225                 Utils->SetRemoteBursting(i->second, false);
 226 }
 227
 228 void ModuleSpanningTree::ConnectServer(Link* x)
 229 {
 230         bool ipvalid = true;
 231         QueryType start_type = DNS_QUERY_A;
 232 #ifdef IPV6
 233         start_type = DNS_QUERY_AAAA;
 234         if (strchr(x->IPAddr.c_str(),':'))
 235         {
 236                 in6_addr n;
 237                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 238                         ipvalid = false;
 239         }
 240         else
 241 #endif
 242         {
 243                 in_addr n;
 244                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 245                         ipvalid = false;
 246         }
 247
 248         /* Do we already have an IP? If so, no need to resolve it. */
 249         if (ipvalid)
 250         {
 251                 /* Gave a hook, but it wasnt one we know */
 252                 if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
 253                         return;
 254                 TreeSocket* newsocket = new TreeSocket(Utils, ServerInstance, x->IPAddr,x->Port,false,x->Timeout ? x->Timeout : 10,x->Name.c_str(), x->Bind, x->Hook.empty() ? NULL : Utils->hooks[x->Hook.c_str()]);
 255                 if (newsocket->GetFd() > -1)
 256                 {
 257                         /* Handled automatically on success */
 258                 }
 259                 else
 260                 {
 261                         RemoteMessage(NULL, "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
 262                         if (ServerInstance->SocketCull.find(newsocket) == ServerInstance->SocketCull.end())
 263                                 ServerInstance->SocketCull[newsocket] = newsocket;
 264                         Utils->DoFailOver(x);
 265                 }
 266         }
 267         else
 268         {
 269                 try
 270                 {
 271                         bool cached;
 272                         ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x, cached, start_type);
 273                         ServerInstance->AddResolver(snr, cached);
 274                 }
 275                 catch (ModuleException& e)
 276                 {
 277                         RemoteMessage(NULL, "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 278                         Utils->DoFailOver(x);
 279                 }
 280         }
 281 }
 282
 283 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 284 {
 285         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 286         {
 287                 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
 288                 {
 289                         x->NextConnectTime = curtime + x->AutoConnect;
 290                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 291                         if (x->FailOver.length())
 292                         {
 293                                 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
 294                                 if (CheckFailOver)
 295                                 {
 296                                         /* The failover for this server is currently a member of the network.
 297                                          * The failover probably succeeded, where the main link did not.
 298                                          * Don't try the main link until the failover is gone again.
 299                                          */
 300                                         continue;
 301                                 }
 302                         }
 303                         if (!CheckDupe)
 304                         {
 305                                 // an autoconnected server is not connected. Check if its time to connect it
 306                                 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
 307                                 this->ConnectServer(&(*x));
 308                         }
 309                 }
 310         }
 311 }
 312
 313 int ModuleSpanningTree::HandleVersion(const char** parameters, int pcnt, User* user)
 314 {
 315         // we've already checked if pcnt > 0, so this is safe
 316         TreeServer* found = Utils->FindServerMask(parameters[0]);
 317         if (found)
 318         {
 319                 std::string Version = found->GetVersion();
 320                 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
 321                 if (found == Utils->TreeRoot)
 322                 {
 323                         ServerInstance->Config->Send005(user);
 324                 }
 325         }
 326         else
 327         {
 328                 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
 329         }
 330         return 1;
 331 }
 332
 333 /* This method will attempt to get a link message out to as many people as is required.
 334  * If a user is provided, and that user is local, then the user is sent the message using
 335  * WriteServ (they are the local initiator of that message). If the user is remote, they are
 336  * sent that message remotely via PUSH.
 337  * If the user is NULL, then the notice is sent locally via WriteToSnoMask with snomask 'l',
 338  * and remotely via SNONOTICE with mask 'l'.
 339  */
 340 void ModuleSpanningTree::RemoteMessage(User* user, const char* format, ...)
 341 {
 342         /* This could cause an infinite loop, because DoOneToMany() will, on error,
 343          * call TreeSocket::OnError(), which in turn will call this function to
 344          * notify everyone of the error. So, drop any messages that are generated
 345          * during the sending of another message. -Special */
 346         static bool SendingRemoteMessage = false;
 347         if (SendingRemoteMessage)
 348                 return;
 349         SendingRemoteMessage = true;
 350
 351         std::deque<std::string> params;
 352         char text[MAXBUF];
 353         va_list argsPtr;
 354
 355         va_start(argsPtr, format);
 356         vsnprintf(text, MAXBUF, format, argsPtr);
 357         va_end(argsPtr);
 358
 359         if (!user)
 360         {
 361                 /* No user, target it generically at everyone */
 362                 ServerInstance->SNO->WriteToSnoMask('l', "%s", text);
 363                 params.push_back("l");
 364                 params.push_back(std::string(":") + text);
 365                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "SNONOTICE", params);
 366         }
 367         else
 368         {
 369                 if (IS_LOCAL(user))
 370                         user->WriteServ("NOTICE %s :%s", user->nick, text);
 371                 else
 372                 {
 373                         params.push_back(user->uuid);
 374                         params.push_back(std::string("::") + ServerInstance->Config->ServerName + " NOTICE " + user->nick + " :*** From " +
 375                                         ServerInstance->Config->ServerName+ ": " + text);
 376                         Utils->DoOneToMany(ServerInstance->Config->GetSID(), "PUSH", params);
 377                 }
 378         }
 379
 380         SendingRemoteMessage = false;
 381 }
 382
 383 int ModuleSpanningTree::HandleConnect(const char** parameters, int pcnt, User* user)
 384 {
 385         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 386         {
 387                 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
 388                 {
 389                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 390                         if (!CheckDupe)
 391                         {
 392                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 393                                 ConnectServer(&(*x));
 394                                 return 1;
 395                         }
 396                         else
 397                         {
 398                                 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());
 399                                 return 1;
 400                         }
 401                 }
 402         }
 403         RemoteMessage(user, "*** CONNECT: No server matching \002%s\002 could be found in the config file.",parameters[0]);
 404         return 1;
 405 }
 406
 407 void ModuleSpanningTree::BroadcastTimeSync()
 408 {
 409         if (Utils->MasterTime)
 410         {
 411                 std::deque<std::string> params;
 412                 params.push_back(ConvToStr(ServerInstance->Time(false)));
 413                 params.push_back("FORCE");
 414                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "TIMESET", params);
 415         }
 416 }
 417
 418 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 419 {
 420         TreeServer* s = Utils->FindServer(servername);
 421         if (s)
 422         {
 423                 description = s->GetDesc();
 424         }
 425 }
 426
 427 void ModuleSpanningTree::OnUserInvite(User* source,User* dest,Channel* channel)
 428 {
 429         if (IS_LOCAL(source))
 430         {
 431                 std::deque<std::string> params;
 432                 params.push_back(dest->uuid);
 433                 params.push_back(channel->name);
 434                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 435         }
 436 }
 437
 438 void ModuleSpanningTree::OnPostLocalTopicChange(User* user, Channel* chan, const std::string &topic)
 439 {
 440         std::deque<std::string> params;
 441         params.push_back(chan->name);
 442         params.push_back(":"+topic);
 443         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 444 }
 445
 446 void ModuleSpanningTree::OnWallops(User* user, const std::string &text)
 447 {
 448         if (IS_LOCAL(user))
 449         {
 450                 std::deque<std::string> params;
 451                 params.push_back(":"+text);
 452                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 453         }
 454 }
 455
 456 void ModuleSpanningTree::OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 457 {
 458         if (target_type == TYPE_USER)
 459         {
 460                 User* d = (User*)dest;
 461                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 462                 {
 463                         std::deque<std::string> params;
 464                         params.clear();
 465                         params.push_back(d->uuid);
 466                         params.push_back(":"+text);
 467                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 468                 }
 469         }
 470         else if (target_type == TYPE_CHANNEL)
 471         {
 472                 if (IS_LOCAL(user))
 473                 {
 474                         Channel *c = (Channel*)dest;
 475                         if (c)
 476                         {
 477                                 std::string cname = c->name;
 478                                 if (status)
 479                                         cname = status + cname;
 480                                 TreeServerList list;
 481                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 482                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 483                                 {
 484                                         TreeSocket* Sock = i->second->GetSocket();
 485                                         if (Sock)
 486                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 487                                 }
 488                         }
 489                 }
 490         }
 491         else if (target_type == TYPE_SERVER)
 492         {
 493                 if (IS_LOCAL(user))
 494                 {
 495                         char* target = (char*)dest;
 496                         std::deque<std::string> par;
 497                         par.push_back(target);
 498                         par.push_back(":"+text);
 499                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 500                 }
 501         }
 502 }
 503
 504 void ModuleSpanningTree::OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 505 {
 506         if (target_type == TYPE_USER)
 507         {
 508                 // route private messages which are targetted at clients only to the server
 509                 // which needs to receive them
 510                 User* d = (User*)dest;
 511                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 512                 {
 513                         std::deque<std::string> params;
 514                         params.clear();
 515                         params.push_back(d->uuid);
 516                         params.push_back(":"+text);
 517                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 518                 }
 519         }
 520         else if (target_type == TYPE_CHANNEL)
 521         {
 522                 if (IS_LOCAL(user))
 523                 {
 524                         Channel *c = (Channel*)dest;
 525                         if (c)
 526                         {
 527                                 std::string cname = c->name;
 528                                 if (status)
 529                                         cname = status + cname;
 530                                 TreeServerList list;
 531                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 532                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 533                                 {
 534                                         TreeSocket* Sock = i->second->GetSocket();
 535                                         if (Sock)
 536                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 537                                 }
 538                         }
 539                 }
 540         }
 541         else if (target_type == TYPE_SERVER)
 542         {
 543                 if (IS_LOCAL(user))
 544                 {
 545                         char* target = (char*)dest;
 546                         std::deque<std::string> par;
 547                         par.push_back(target);
 548                         par.push_back(":"+text);
 549                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 550                 }
 551         }
 552 }
 553
 554 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 555 {
 556         AutoConnectServers(curtime);
 557         DoPingChecks(curtime);
 558 }
 559
 560 void ModuleSpanningTree::OnUserJoin(User* user, Channel* channel, bool sync, bool &silent)
 561 {
 562         // Only do this for local users
 563         if (IS_LOCAL(user))
 564         {
 565                 if (channel->GetUserCounter() == 1)
 566                 {
 567                         std::deque<std::string> params;
 568                         // set up their permissions and the channel TS with FJOIN.
 569                         // All users are FJOINed now, because a module may specify
 570                         // new joining permissions for the user.
 571                         params.push_back(channel->name);
 572                         params.push_back(ConvToStr(channel->age));
 573                         params.push_back(std::string(channel->GetAllPrefixChars(user))+","+std::string(user->uuid));
 574                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FJOIN",params);
 575                         /* First user in, sync the modes for the channel */
 576                         params.pop_back();
 577                         params.push_back(channel->ChanModes(true));
 578                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FMODE",params);
 579                 }
 580                 else
 581                 {
 582                         std::deque<std::string> params;
 583                         params.push_back(channel->name);
 584                         params.push_back(ConvToStr(channel->age));
 585                         Utils->DoOneToMany(user->uuid,"JOIN",params);
 586                 }
 587         }
 588 }
 589
 590 void ModuleSpanningTree::OnChangeHost(User* user, const std::string &newhost)
 591 {
 592         // only occurs for local clients
 593         if (user->registered != REG_ALL)
 594                 return;
 595         std::deque<std::string> params;
 596         params.push_back(newhost);
 597         Utils->DoOneToMany(user->uuid,"FHOST",params);
 598 }
 599
 600 void ModuleSpanningTree::OnChangeName(User* user, const std::string &gecos)
 601 {
 602         // only occurs for local clients
 603         if (user->registered != REG_ALL)
 604                 return;
 605         std::deque<std::string> params;
 606         params.push_back(gecos);
 607         Utils->DoOneToMany(user->uuid,"FNAME",params);
 608 }
 609
 610 void ModuleSpanningTree::OnUserPart(User* user, Channel* channel, const std::string &partmessage, bool &silent)
 611 {
 612         if (IS_LOCAL(user))
 613         {
 614                 std::deque<std::string> params;
 615                 params.push_back(channel->name);
 616                 if (!partmessage.empty())
 617                         params.push_back(":"+partmessage);
 618                 Utils->DoOneToMany(user->uuid,"PART",params);
 619         }
 620 }
 621
 622 void ModuleSpanningTree::OnUserConnect(User* user)
 623 {
 624         if (IS_LOCAL(user))
 625         {
 626                 std::deque<std::string> params;
 627                 params.push_back(user->uuid);
 628                 params.push_back(ConvToStr(user->age));
 629                 params.push_back(user->nick);
 630                 params.push_back(user->host);
 631                 params.push_back(user->dhost);
 632                 params.push_back(user->ident);
 633                 params.push_back("+"+std::string(user->FormatModes()));
 634                 params.push_back(user->GetIPString());
 635                 params.push_back(ConvToStr(user->signon));
 636                 params.push_back(":"+std::string(user->fullname));
 637                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "UID", params);
 638                 // User is Local, change needs to be reflected!
 639                 TreeServer* SourceServer = Utils->FindServer(user->server);
 640                 if (SourceServer)
 641                 {
 642                         SourceServer->AddUserCount();
 643                 }
 644         }
 645 }
 646
 647 void ModuleSpanningTree::OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
 648 {
 649         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 650         {
 651                 std::deque<std::string> params;
 652
 653                 if (oper_message != reason)
 654                 {
 655                         params.push_back(":"+oper_message);
 656                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
 657                 }
 658                 params.clear();
 659                 params.push_back(":"+reason);
 660                 Utils->DoOneToMany(user->uuid,"QUIT",params);
 661         }
 662         // Regardless, We need to modify the user Counts..
 663         TreeServer* SourceServer = Utils->FindServer(user->server);
 664         if (SourceServer)
 665         {
 666                 SourceServer->DelUserCount();
 667         }
 668 }
 669
 670 void ModuleSpanningTree::OnUserPostNick(User* user, const std::string &oldnick)
 671 {
 672         if (IS_LOCAL(user))
 673         {
 674                 std::deque<std::string> params;
 675                 params.push_back(user->nick);
 676
 677                 /** IMPORTANT: We don't update the TS if the oldnick is just a case change of the newnick!
 678                  */
 679                 if (irc::string(user->nick) != assign(oldnick))
 680                         user->age = ServerInstance->Time(true);
 681
 682                 params.push_back(ConvToStr(user->age));
 683                 Utils->DoOneToMany(user->uuid,"NICK",params);
 684         }
 685 }
 686
 687 void ModuleSpanningTree::OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
 688 {
 689         if ((source) && (IS_LOCAL(source)))
 690         {
 691                 std::deque<std::string> params;
 692                 params.push_back(chan->name);
 693                 params.push_back(user->uuid);
 694                 params.push_back(":"+reason);
 695                 Utils->DoOneToMany(source->uuid,"KICK",params);
 696         }
 697         else if (!source)
 698         {
 699                 std::deque<std::string> params;
 700                 params.push_back(chan->name);
 701                 params.push_back(user->uuid);
 702                 params.push_back(":"+reason);
 703                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"KICK",params);
 704         }
 705 }
 706
 707 void ModuleSpanningTree::OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason)
 708 {
 709         std::deque<std::string> params;
 710         params.push_back(":"+reason);
 711         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
 712         params.clear();
 713         params.push_back(dest->uuid);
 714         params.push_back(":"+reason);
 715         dest->SetOperQuit(operreason);
 716         Utils->DoOneToMany(source->uuid,"KILL",params);
 717 }
 718
 719 void ModuleSpanningTree::OnRehash(User* user, const std::string &parameter)
 720 {
 721         if (!parameter.empty())
 722         {
 723                 std::deque<std::string> params;
 724                 params.push_back(parameter);
 725                 Utils->DoOneToMany(user ? user->nick : ServerInstance->Config->GetSID(), "REHASH", params);
 726                 // check for self
 727                 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
 728                 {
 729                         ServerInstance->WriteOpers("*** Remote rehash initiated locally by \002%s\002", user ? user->nick : ServerInstance->Config->ServerName);
 730                         ServerInstance->RehashServer();
 731                 }
 732         }
 733         Utils->ReadConfiguration(false);
 734         InitializeDisabledCommands(ServerInstance->Config->DisabledCommands, ServerInstance);
 735 }
 736
 737 // note: the protocol does not allow direct umode +o except
 738 // via NICK with 8 params. sending OPERTYPE infers +o modechange
 739 // locally.
 740 void ModuleSpanningTree::OnOper(User* user, const std::string &opertype)
 741 {
 742         if (IS_LOCAL(user))
 743         {
 744                 std::deque<std::string> params;
 745                 params.push_back(opertype);
 746                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
 747         }
 748 }
 749
 750 void ModuleSpanningTree::OnAddLine(XLine* line, User* user)
 751 {
 752         if (line->type == "K")
 753                 return;
 754
 755         char data[MAXBUF];
 756         snprintf(data,MAXBUF,"%s %s %s %lu %lu :%s", line->type.c_str(), line->Displayable(), ServerInstance->Config->ServerName, line->set_time,
 757                         line->duration, line->reason);
 758         std::deque<std::string> params;
 759         params.push_back(data);
 760
 761         if (!user)
 762         {
 763                 /* Server-set lines */
 764                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "ADDLINE", params);
 765         }
 766         else if (IS_LOCAL(user))
 767         {
 768                 /* User-set lines */
 769                 Utils->DoOneToMany(user->uuid, "ADDLINE", params);
 770         }
 771 }
 772
 773 void ModuleSpanningTree::OnDelLine(XLine* line, User* user)
 774 {
 775         if (line->type == "K")
 776                 return;
 777
 778         char data[MAXBUF];
 779         snprintf(data,MAXBUF,"%s %s", line->type.c_str(), line->Displayable());
 780         std::deque<std::string> params;
 781         params.push_back(data);
 782
 783         if (!user)
 784         {
 785                 /* Server-unset lines */
 786                 Utils->DoOneToMany(ServerInstance->Config->GetSID(), "DELLINE", params);
 787         }
 788         else if (IS_LOCAL(user))
 789         {
 790                 /* User-unset lines */
 791                 Utils->DoOneToMany(user->uuid, "DELLINE", params);
 792         }
 793 }
 794
 795 void ModuleSpanningTree::OnMode(User* user, void* dest, int target_type, const std::string &text)
 796 {
 797         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
 798         {
 799                 std::deque<std::string> params;
 800                 std::string command;
 801                 std::string output_text;
 802
 803                 ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, text, output_text);
 804
 805                 if (target_type == TYPE_USER)
 806                 {
 807                         User* u = (User*)dest;
 808                         params.push_back(u->uuid);
 809                         params.push_back(output_text);
 810                         command = "MODE";
 811                 }
 812                 else
 813                 {
 814                         Channel* c = (Channel*)dest;
 815                         params.push_back(c->name);
 816                         params.push_back(ConvToStr(c->age));
 817                         params.push_back(output_text);
 818                         command = "FMODE";
 819                 }
 820
 821                 Utils->DoOneToMany(user->uuid, command, params);
 822         }
 823 }
 824
 825 void ModuleSpanningTree::OnSetAway(User* user)
 826 {
 827         if (IS_LOCAL(user))
 828         {
 829                 std::deque<std::string> params;
 830                 params.push_back(":"+std::string(user->awaymsg));
 831                 Utils->DoOneToMany(user->uuid,"AWAY",params);
 832         }
 833 }
 834
 835 void ModuleSpanningTree::OnCancelAway(User* user)
 836 {
 837         if (IS_LOCAL(user))
 838         {
 839                 std::deque<std::string> params;
 840                 params.clear();
 841                 Utils->DoOneToMany(user->uuid,"AWAY",params);
 842         }
 843 }
 844
 845 void ModuleSpanningTree::ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
 846 {
 847         TreeSocket* s = (TreeSocket*)opaque;
 848         std::string output_text;
 849
 850         ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, modeline, output_text);
 851
 852         if (target)
 853         {
 854                 if (target_type == TYPE_USER)
 855                 {
 856                         User* u = (User*)target;
 857                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+u->uuid+" "+ConvToStr(u->age)+" "+output_text);
 858                 }
 859                 else
 860                 {
 861                         Channel* c = (Channel*)target;
 862                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
 863                 }
 864         }
 865 }
 866
 867 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
 868 {
 869         TreeSocket* s = (TreeSocket*)opaque;
 870         if (target)
 871         {
 872                 if (target_type == TYPE_USER)
 873                 {
 874                         User* u = (User*)target;
 875                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+u->uuid+" "+extname+" :"+extdata);
 876                 }
 877                 else if (target_type == TYPE_CHANNEL)
 878                 {
 879                         Channel* c = (Channel*)target;
 880                         s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA "+c->name+" "+extname+" :"+extdata);
 881                 }
 882         }
 883         if (target_type == TYPE_OTHER)
 884         {
 885                 s->WriteLine(std::string(":")+ServerInstance->Config->GetSID()+" METADATA * "+extname+" :"+extdata);
 886         }
 887 }
 888
 889 void ModuleSpanningTree::OnEvent(Event* event)
 890 {
 891         std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
 892         if (event->GetEventID() == "send_metadata")
 893         {
 894                 if (params->size() < 3)
 895                         return;
 896                 (*params)[2] = ":" + (*params)[2];
 897                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"METADATA",*params);
 898         }
 899         else if (event->GetEventID() == "send_topic")
 900         {
 901                 if (params->size() < 2)
 902                         return;
 903                 (*params)[1] = ":" + (*params)[1];
 904                 params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
 905                 params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time(true)));
 906                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FTOPIC",*params);
 907         }
 908         else if (event->GetEventID() == "send_mode")
 909         {
 910                 if (params->size() < 2)
 911                         return;
 912                 // Insert the TS value of the object, either User or Channel
 913                 time_t ourTS = 0;
 914                 std::string output_text;
 915
 916                 /* Warning: in-place translation is only safe for type TR_NICK */
 917                 for (size_t n = 0; n < params->size(); n++)
 918                         ServerInstance->Parser->TranslateUIDs(TR_NICK, (*params)[n], (*params)[n]);
 919
 920                 User* a = ServerInstance->FindNick((*params)[0]);
 921                 if (a)
 922                 {
 923                         ourTS = a->age;
 924                         Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODE",*params);
 925                         return;
 926                 }
 927                 else
 928                 {
 929                         Channel* a = ServerInstance->FindChan((*params)[0]);
 930                         if (a)
 931                         {
 932                                 ourTS = a->age;
 933                                 params->insert(params->begin() + 1,ConvToStr(ourTS));
 934                                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"FMODE",*params);
 935                         }
 936                 }
 937         }
 938         else if (event->GetEventID() == "send_mode_explicit")
 939         {
 940                 if (params->size() < 2)
 941                         return;
 942                 std::string output_text;
 943
 944                 /* Warning: in-place translation is only safe for type TR_NICK */
 945                 for (size_t n = 0; n < params->size(); n++)
 946                         ServerInstance->Parser->TranslateUIDs(TR_NICK, (*params)[n], (*params)[n]);
 947
 948                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODE",*params);
 949         }
 950         else if (event->GetEventID() == "send_opers")
 951         {
 952                 if (params->size() < 1)
 953                         return;
 954                 (*params)[0] = ":" + (*params)[0];
 955                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"OPERNOTICE",*params);
 956         }
 957         else if (event->GetEventID() == "send_modeset")
 958         {
 959                 if (params->size() < 2)
 960                         return;
 961                 (*params)[1] = ":" + (*params)[1];
 962                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"MODENOTICE",*params);
 963         }
 964         else if (event->GetEventID() == "send_snoset")
 965         {
 966                 if (params->size() < 2)
 967                         return;
 968                 (*params)[1] = ":" + (*params)[1];
 969                 Utils->DoOneToMany(ServerInstance->Config->GetSID(),"SNONOTICE",*params);
 970         }
 971         else if (event->GetEventID() == "send_push")
 972         {
 973                 if (params->size() < 2)
 974                         return;
 975
 976                 User *a = ServerInstance->FindNick((*params)[0]);
 977
 978                 if (!a)
 979                         return;
 980
 981                 (*params)[0] = a->uuid;
 982                 (*params)[1] = ":" + (*params)[1];
 983                 Utils->DoOneToOne(ServerInstance->Config->GetSID(), "PUSH", *params, a->server);
 984         }
 985 }
 986
 987 ModuleSpanningTree::~ModuleSpanningTree()
 988 {
 989         /* This will also free the listeners */
 990         delete Utils;
 991         if (SyncTimer)
 992                 ServerInstance->Timers->DelTimer(SyncTimer);
 993
 994         ServerInstance->Timers->DelTimer(RefreshTimer);
 995
 996         ServerInstance->Modules->DoneWithInterface("BufferedSocketHook");
 997 }
 998
 999 Version ModuleSpanningTree::GetVersion()
1000 {
1001         return Version(1,1,0,2,VF_VENDOR,API_VERSION);
1002 }
1003
1004 /* It is IMPORTANT that m_spanningtree is the last module in the chain
1005  * so that any activity it sees is FINAL, e.g. we arent going to send out
1006  * a NICK message before m_cloaking has finished putting the +x on the user,
1007  * etc etc.
1008  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
1009  * the module call queue.
1010  */
1011 void ModuleSpanningTree::Prioritize()
1012 {
1013         ServerInstance->Modules->SetPriority(this, PRIO_LAST);
1014 }
1015
1016 MODULE_INIT(ModuleSpanningTree)