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 "configreader.h"
  18 #include "users.h"
  19 #include "channels.h"
  20 #include "modules.h"
  21 #include "commands/cmd_whois.h"
  22 #include "commands/cmd_stats.h"
  23 #include "socket.h"
  24 #include "wildcard.h"
  25 #include "xline.h"
  26 #include "transport.h"
  27
  28 #include "m_spanningtree/timesynctimer.h"
  29 #include "m_spanningtree/resolvers.h"
  30 #include "m_spanningtree/main.h"
  31 #include "m_spanningtree/utils.h"
  32 #include "m_spanningtree/treeserver.h"
  33 #include "m_spanningtree/link.h"
  34 #include "m_spanningtree/treesocket.h"
  35 #include "m_spanningtree/rconnect.h"
  36 #include "m_spanningtree/rsquit.h"
  37
  38 /* $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 */
  39
  40 ModuleSpanningTree::ModuleSpanningTree(InspIRCd* Me)
  41         : Module(Me), max_local(0), max_global(0)
  42 {
  43         ServerInstance->UseInterface("InspSocketHook");
  44         Utils = new SpanningTreeUtilities(Me, this);
  45         command_rconnect = new cmd_rconnect(ServerInstance, this, Utils);
  46         ServerInstance->AddCommand(command_rconnect);
  47         command_rsquit = new cmd_rsquit(ServerInstance, this, Utils);
  48         ServerInstance->AddCommand(command_rsquit);
  49         if (Utils->EnableTimeSync)
  50         {
  51                 SyncTimer = new TimeSyncTimer(ServerInstance, this);
  52                 ServerInstance->Timers->AddTimer(SyncTimer);
  53         }
  54         else
  55                 SyncTimer = NULL;
  56
  57         RefreshTimer = new CacheRefreshTimer(ServerInstance, Utils);
  58         ServerInstance->Timers->AddTimer(RefreshTimer);
  59 }
  60
  61 void ModuleSpanningTree::ShowLinks(TreeServer* Current, userrec* user, int hops)
  62 {
  63         std::string Parent = Utils->TreeRoot->GetName();
  64         if (Current->GetParent())
  65         {
  66                 Parent = Current->GetParent()->GetName();
  67         }
  68         for (unsigned int q = 0; q < Current->ChildCount(); q++)
  69         {
  70                 if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str()))))
  71                 {
  72                         if (*user->oper)
  73                         {
  74                                  ShowLinks(Current->GetChild(q),user,hops+1);
  75                         }
  76                 }
  77                 else
  78                 {
  79                         ShowLinks(Current->GetChild(q),user,hops+1);
  80                 }
  81         }
  82         /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
  83         if ((Utils->HideULines) && (ServerInstance->ULine(Current->GetName().c_str())) && (!IS_OPER(user)))
  84                 return;
  85         /* Or if the server is hidden and they're not an oper */
  86         else if ((Current->Hidden) && (!IS_OPER(user)))
  87                 return;
  88
  89         user->WriteServ("364 %s %s %s :%d %s",  user->nick,Current->GetName().c_str(),
  90                         (Utils->FlatLinks && (!IS_OPER(user))) ? ServerInstance->Config->ServerName : Parent.c_str(),
  91                         (Utils->FlatLinks && (!IS_OPER(user))) ? 0 : hops,
  92                         Current->GetDesc().c_str());
  93 }
  94
  95 int ModuleSpanningTree::CountLocalServs()
  96 {
  97         return Utils->TreeRoot->ChildCount();
  98 }
  99
 100 int ModuleSpanningTree::CountServs()
 101 {
 102         return Utils->serverlist.size();
 103 }
 104
 105 void ModuleSpanningTree::HandleLinks(const char** parameters, int pcnt, userrec* user)
 106 {
 107         ShowLinks(Utils->TreeRoot,user,0);
 108         user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
 109         return;
 110 }
 111
 112 void ModuleSpanningTree::HandleLusers(const char** parameters, int pcnt, userrec* user)
 113 {
 114         unsigned int n_users = ServerInstance->UserCount();
 115
 116         /* Only update these when someone wants to see them, more efficient */
 117         if ((unsigned int)ServerInstance->LocalUserCount() > max_local)
 118                 max_local = ServerInstance->LocalUserCount();
 119         if (n_users > max_global)
 120                 max_global = n_users;
 121
 122         unsigned int ulined_count = 0;
 123         unsigned int ulined_local_count = 0;
 124
 125         /* If ulined are hidden and we're not an oper, count the number of ulined servers hidden,
 126          * locally and globally (locally means directly connected to us)
 127          */
 128         if ((Utils->HideULines) && (!*user->oper))
 129         {
 130                 for (server_hash::iterator q = Utils->serverlist.begin(); q != Utils->serverlist.end(); q++)
 131                 {
 132                         if (ServerInstance->ULine(q->second->GetName().c_str()))
 133                         {
 134                                 ulined_count++;
 135                                 if (q->second->GetParent() == Utils->TreeRoot)
 136                                         ulined_local_count++;
 137                         }
 138                 }
 139         }
 140         user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,
 141                         n_users-ServerInstance->InvisibleUserCount(),
 142                         ServerInstance->InvisibleUserCount(),
 143                         ulined_count ? this->CountServs() - ulined_count : this->CountServs());
 144
 145         if (ServerInstance->OperCount())
 146                 user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->OperCount());
 147
 148         if (ServerInstance->UnregisteredUserCount())
 149                 user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->UnregisteredUserCount());
 150
 151         if (ServerInstance->ChannelCount())
 152                 user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->ChannelCount());
 153
 154         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());
 155         user->WriteServ("265 %s :Current Local Users: %d  Max: %d",user->nick,ServerInstance->LocalUserCount(),max_local);
 156         user->WriteServ("266 %s :Current Global Users: %d  Max: %d",user->nick,n_users,max_global);
 157         return;
 158 }
 159
 160 std::string ModuleSpanningTree::TimeToStr(time_t secs)
 161 {
 162         time_t mins_up = secs / 60;
 163         time_t hours_up = mins_up / 60;
 164         time_t days_up = hours_up / 24;
 165         secs = secs % 60;
 166         mins_up = mins_up % 60;
 167         hours_up = hours_up % 24;
 168         return ((days_up ? (ConvToStr(days_up) + "d") : std::string(""))
 169                         + (hours_up ? (ConvToStr(hours_up) + "h") : std::string(""))
 170                         + (mins_up ? (ConvToStr(mins_up) + "m") : std::string(""))
 171                         + ConvToStr(secs) + "s");
 172 }
 173
 174 const std::string ModuleSpanningTree::MapOperInfo(TreeServer* Current)
 175 {
 176         time_t secs_up = ServerInstance->Time() - Current->age;
 177         return (" [Up: " + TimeToStr(secs_up) + " Lag: "+ConvToStr(Current->rtt)+"ms]");
 178 }
 179
 180 // WARNING: NOT THREAD SAFE - DONT GET ANY SMART IDEAS.
 181 void ModuleSpanningTree::ShowMap(TreeServer* Current, userrec* user, int depth, char matrix[128][128], float &totusers, float &totservers)
 182 {
 183         if (line < 128)
 184         {
 185                 for (int t = 0; t < depth; t++)
 186                 {
 187                         matrix[line][t] = ' ';
 188                 }
 189                 // For Aligning, we need to work out exactly how deep this thing is, and produce
 190                 // a 'Spacer' String to compensate.
 191                 char spacer[40];
 192                 memset(spacer,' ',40);
 193                 if ((40 - Current->GetName().length() - depth) > 1) {
 194                         spacer[40 - Current->GetName().length() - depth] = '\0';
 195                 }
 196                 else
 197                 {
 198                         spacer[5] = '\0';
 199                 }
 200                 float percent;
 201                 char text[128];
 202                 /* Neat and tidy default values, as we're dealing with a matrix not a simple string */
 203                 memset(text, 0, 128);
 204
 205                 if (ServerInstance->clientlist->size() == 0) {
 206                         // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
 207                         percent = 0;
 208                 }
 209                 else
 210                 {
 211                         percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist->size()) * 100;
 212                 }
 213                 const std::string operdata = IS_OPER(user) ? MapOperInfo(Current) : "";
 214                 snprintf(text, 126, "%s %s%5d [%5.2f%%]%s", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent, operdata.c_str());
 215                 totusers += Current->GetUserCount();
 216                 totservers++;
 217                 strlcpy(&matrix[line][depth],text,126);
 218                 line++;
 219                 for (unsigned int q = 0; q < Current->ChildCount(); q++)
 220                 {
 221                         if ((Current->GetChild(q)->Hidden) || ((Utils->HideULines) && (ServerInstance->ULine(Current->GetChild(q)->GetName().c_str()))))
 222                         {
 223                                 if (*user->oper)
 224                                 {
 225                                         ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
 226                                 }
 227                         }
 228                         else
 229                         {
 230                                 ShowMap(Current->GetChild(q),user,(Utils->FlatLinks && (!*user->oper)) ? depth : depth+2,matrix,totusers,totservers);
 231                         }
 232                 }
 233         }
 234 }
 235
 236 int ModuleSpanningTree::HandleMotd(const char** parameters, int pcnt, userrec* user)
 237 {
 238         if (pcnt > 0)
 239         {
 240                 if (match(ServerInstance->Config->ServerName, parameters[0]))
 241                         return 0;
 242
 243                 /* Remote MOTD, the server is within the 1st parameter */
 244                 std::deque<std::string> params;
 245                 params.push_back(parameters[0]);
 246                 /* Send it out remotely, generate no reply yet */
 247                 TreeServer* s = Utils->FindServerMask(parameters[0]);
 248                 if (s)
 249                 {
 250                         params[0] = s->GetName();
 251                         Utils->DoOneToOne(user->uuid, "MOTD", params, s->GetName());
 252                 }
 253                 else
 254                         user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
 255                 return 1;
 256         }
 257         return 0;
 258 }
 259
 260 int ModuleSpanningTree::HandleAdmin(const char** parameters, int pcnt, userrec* user)
 261 {
 262         if (pcnt > 0)
 263         {
 264                 if (match(ServerInstance->Config->ServerName, parameters[0]))
 265                         return 0;
 266
 267                 /* Remote ADMIN, the server is within the 1st parameter */
 268                 std::deque<std::string> params;
 269                 params.push_back(parameters[0]);
 270                 /* Send it out remotely, generate no reply yet */
 271                 TreeServer* s = Utils->FindServerMask(parameters[0]);
 272                 if (s)
 273                 {
 274                         params[0] = s->GetName();
 275                         Utils->DoOneToOne(user->uuid, "ADMIN", params, s->GetName());
 276                 }
 277                 else
 278                         user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
 279                 return 1;
 280         }
 281         return 0;
 282 }
 283
 284 int ModuleSpanningTree::HandleModules(const char** parameters, int pcnt, userrec* user)
 285 {
 286         if (pcnt > 0)
 287         {
 288                 if (match(ServerInstance->Config->ServerName, parameters[0]))
 289                         return 0;
 290
 291                 std::deque<std::string> params;
 292                 params.push_back(parameters[0]);
 293                 TreeServer* s = Utils->FindServerMask(parameters[0]);
 294                 if (s)
 295                 {
 296                         params[0] = s->GetName();
 297                         Utils->DoOneToOne(user->uuid, "MODULES", params, s->GetName());
 298                 }
 299                 else
 300                         user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
 301                 return 1;
 302         }
 303         return 0;
 304 }
 305
 306 int ModuleSpanningTree::HandleStats(const char** parameters, int pcnt, userrec* user)
 307 {
 308         if (pcnt > 1)
 309         {
 310                 if (match(ServerInstance->Config->ServerName, parameters[1]))
 311                         return 0;
 312
 313                 /* Remote STATS, the server is within the 2nd parameter */
 314                 std::deque<std::string> params;
 315                 params.push_back(parameters[0]);
 316                 params.push_back(parameters[1]);
 317                 /* Send it out remotely, generate no reply yet */
 318
 319                 TreeServer* s = Utils->FindServerMask(parameters[1]);
 320                 if (s)
 321                 {
 322                         params[1] = s->GetName();
 323                         Utils->DoOneToOne(user->uuid, "STATS", params, s->GetName());
 324                 }
 325                 else
 326                 {
 327                         user->WriteServ( "402 %s %s :No such server", user->nick, parameters[1]);
 328                 }
 329                 return 1;
 330         }
 331         return 0;
 332 }
 333
 334 // Ok, prepare to be confused.
 335 // After much mulling over how to approach this, it struck me that
 336 // the 'usual' way of doing a /MAP isnt the best way. Instead of
 337 // keeping track of a ton of ascii characters, and line by line
 338 // under recursion working out where to place them using multiplications
 339 // and divisons, we instead render the map onto a backplane of characters
 340 // (a character matrix), then draw the branches as a series of "L" shapes
 341 // from the nodes. This is not only friendlier on CPU it uses less stack.
 342 void ModuleSpanningTree::HandleMap(const char** parameters, int pcnt, userrec* user)
 343 {
 344         // This array represents a virtual screen which we will
 345         // "scratch" draw to, as the console device of an irc
 346         // client does not provide for a proper terminal.
 347         float totusers = 0;
 348         float totservers = 0;
 349         char matrix[128][128];
 350         for (unsigned int t = 0; t < 128; t++)
 351         {
 352                 matrix[t][0] = '\0';
 353         }
 354         line = 0;
 355         // The only recursive bit is called here.
 356         ShowMap(Utils->TreeRoot,user,0,matrix,totusers,totservers);
 357         // Process each line one by one. The algorithm has a limit of
 358         // 128 servers (which is far more than a spanning tree should have
 359         // anyway, so we're ok). This limit can be raised simply by making
 360         // the character matrix deeper, 128 rows taking 10k of memory.
 361         for (int l = 1; l < line; l++)
 362         {
 363                 // scan across the line looking for the start of the
 364                 // servername (the recursive part of the algorithm has placed
 365                 // the servers at indented positions depending on what they
 366                 // are related to)
 367                 int first_nonspace = 0;
 368                 while (matrix[l][first_nonspace] == ' ')
 369                 {
 370                         first_nonspace++;
 371                 }
 372                 first_nonspace--;
 373                 // Draw the `- (corner) section: this may be overwritten by
 374                 // another L shape passing along the same vertical pane, becoming
 375                 // a |- (branch) section instead.
 376                 matrix[l][first_nonspace] = '-';
 377                 matrix[l][first_nonspace-1] = '`';
 378                 int l2 = l - 1;
 379                 // Draw upwards until we hit the parent server, causing possibly
 380                 // other corners (`-) to become branches (|-)
 381                 while ((matrix[l2][first_nonspace-1] == ' ') || (matrix[l2][first_nonspace-1] == '`'))
 382                 {
 383                         matrix[l2][first_nonspace-1] = '|';
 384                         l2--;
 385                 }
 386         }
 387         // dump the whole lot to the user. This is the easy bit, honest.
 388         for (int t = 0; t < line; t++)
 389         {
 390                 user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
 391         }
 392         float avg_users = totusers / totservers;
 393         user->WriteServ("270 %s :%.0f server%s and %.0f user%s, average %.2f users per server",user->nick,totservers,(totservers > 1 ? "s" : ""),totusers,(totusers > 1 ? "s" : ""),avg_users);
 394         user->WriteServ("007 %s :End of /MAP",user->nick);
 395         return;
 396 }
 397
 398 int ModuleSpanningTree::HandleSquit(const char** parameters, int pcnt, userrec* user)
 399 {
 400         TreeServer* s = Utils->FindServerMask(parameters[0]);
 401         if (s)
 402         {
 403                 if (s == Utils->TreeRoot)
 404                 {
 405                         user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
 406                         return 1;
 407                 }
 408                 TreeSocket* sock = s->GetSocket();
 409                 if (sock)
 410                 {
 411                         ServerInstance->SNO->WriteToSnoMask('l',"SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
 412                         sock->Squit(s,std::string("Server quit by ") + user->GetFullRealHost());
 413                         ServerInstance->SE->DelFd(sock);
 414                         sock->Close();
 415                 }
 416                 else
 417                 {
 418                         if (IS_LOCAL(user))
 419                                 user->WriteServ("NOTICE %s :*** WARNING: Using SQUIT to split remote servers is deprecated. Please use RSQUIT instead.",user->nick);
 420                 }
 421         }
 422         else
 423         {
 424                  user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
 425         }
 426         return 1;
 427 }
 428
 429 int ModuleSpanningTree::HandleTime(const char** parameters, int pcnt, userrec* user)
 430 {
 431         if ((IS_LOCAL(user)) && (pcnt))
 432         {
 433                 TreeServer* found = Utils->FindServerMask(parameters[0]);
 434                 if (found)
 435                 {
 436                         // we dont' override for local server
 437                         if (found == Utils->TreeRoot)
 438                                 return 0;
 439
 440                         std::deque<std::string> params;
 441                         params.push_back(found->GetName());
 442                         params.push_back(user->uuid);
 443                         Utils->DoOneToOne(ServerInstance->Config->ServerName,"TIME",params,found->GetName());
 444                 }
 445                 else
 446                 {
 447                         user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
 448                 }
 449         }
 450         return 1;
 451 }
 452
 453 int ModuleSpanningTree::HandleRemoteWhois(const char** parameters, int pcnt, userrec* user)
 454 {
 455         if ((IS_LOCAL(user)) && (pcnt > 1))
 456         {
 457                 userrec* remote = ServerInstance->FindNick(parameters[1]);
 458                 if ((remote) && (remote->GetFd() < 0))
 459                 {
 460                         std::deque<std::string> params;
 461                         params.push_back(parameters[1]);
 462                         Utils->DoOneToOne(user->uuid,"IDLE",params,remote->server);
 463                         return 1;
 464                 }
 465                 else if (!remote)
 466                 {
 467                         user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
 468                         user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
 469                         return 1;
 470                 }
 471         }
 472         return 0;
 473 }
 474
 475 void ModuleSpanningTree::DoPingChecks(time_t curtime)
 476 {
 477         for (unsigned int j = 0; j < Utils->TreeRoot->ChildCount(); j++)
 478         {
 479                 TreeServer* serv = Utils->TreeRoot->GetChild(j);
 480                 TreeSocket* sock = serv->GetSocket();
 481                 if (sock)
 482                 {
 483                         if (curtime >= serv->NextPingTime())
 484                         {
 485                                 if (serv->AnsweredLastPing())
 486                                 {
 487                                         sock->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" PING "+serv->GetName());
 488                                         serv->SetNextPingTime(curtime + Utils->PingFreq);
 489                                         serv->LastPing = curtime;
 490                                         timeval t;
 491                                         gettimeofday(&t, NULL);
 492                                         long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000);
 493                                         serv->LastPingMsec = ts;
 494                                         serv->Warned = false;
 495                                 }
 496                                 else
 497                                 {
 498                                         /* they didnt answer, boot them */
 499                                         sock->SendError("Ping timeout");
 500                                         sock->Squit(serv,"Ping timeout");
 501                                         ServerInstance->SE->DelFd(sock);
 502                                         sock->Close();
 503                                         return;
 504                                 }
 505                         }
 506                         else if ((Utils->PingWarnTime) && (!serv->Warned) && (curtime >= serv->NextPingTime() - (Utils->PingFreq - Utils->PingWarnTime)) && (!serv->AnsweredLastPing()))
 507                         {
 508                                 /* The server hasnt responded, send a warning to opers */
 509                                 ServerInstance->SNO->WriteToSnoMask('l',"Server \002%s\002 has not responded to PING for %d seconds, high latency.", serv->GetName().c_str(), Utils->PingWarnTime);
 510                                 serv->Warned = true;
 511                         }
 512                 }
 513         }
 514
 515         /* Cancel remote burst mode on any servers which still have it enabled due to latency/lack of data.
 516          * This prevents lost REMOTECONNECT notices
 517          */
 518         for (server_hash::iterator i = Utils->serverlist.begin(); i != Utils->serverlist.end(); i++)
 519                 Utils->SetRemoteBursting(i->second, false);
 520 }
 521
 522 void ModuleSpanningTree::ConnectServer(Link* x)
 523 {
 524         bool ipvalid = true;
 525         QueryType start_type = DNS_QUERY_A;
 526 #ifdef IPV6
 527         start_type = DNS_QUERY_AAAA;
 528         if (strchr(x->IPAddr.c_str(),':'))
 529         {
 530                 in6_addr n;
 531                 if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
 532                         ipvalid = false;
 533         }
 534         else
 535 #endif
 536         {
 537                 in_addr n;
 538                 if (inet_aton(x->IPAddr.c_str(),&n) < 1)
 539                         ipvalid = false;
 540         }
 541
 542         /* Do we already have an IP? If so, no need to resolve it. */
 543         if (ipvalid)
 544         {
 545                 /* Gave a hook, but it wasnt one we know */
 546                 if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
 547                         return;
 548                 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()]);
 549                 if (newsocket->GetFd() > -1)
 550                 {
 551                         /* Handled automatically on success */
 552                 }
 553                 else
 554                 {
 555                         RemoteMessage(NULL, "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
 556                         if (ServerInstance->SocketCull.find(newsocket) == ServerInstance->SocketCull.end())
 557                                 ServerInstance->SocketCull[newsocket] = newsocket;
 558                         Utils->DoFailOver(x);
 559                 }
 560         }
 561         else
 562         {
 563                 try
 564                 {
 565                         bool cached;
 566                         ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x, cached, start_type);
 567                         ServerInstance->AddResolver(snr, cached);
 568                 }
 569                 catch (ModuleException& e)
 570                 {
 571                         RemoteMessage(NULL, "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
 572                         Utils->DoFailOver(x);
 573                 }
 574         }
 575 }
 576
 577 void ModuleSpanningTree::AutoConnectServers(time_t curtime)
 578 {
 579         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 580         {
 581                 if ((x->AutoConnect) && (curtime >= x->NextConnectTime))
 582                 {
 583                         x->NextConnectTime = curtime + x->AutoConnect;
 584                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 585                         if (x->FailOver.length())
 586                         {
 587                                 TreeServer* CheckFailOver = Utils->FindServer(x->FailOver.c_str());
 588                                 if (CheckFailOver)
 589                                 {
 590                                         /* The failover for this server is currently a member of the network.
 591                                          * The failover probably succeeded, where the main link did not.
 592                                          * Don't try the main link until the failover is gone again.
 593                                          */
 594                                         continue;
 595                                 }
 596                         }
 597                         if (!CheckDupe)
 598                         {
 599                                 // an autoconnected server is not connected. Check if its time to connect it
 600                                 ServerInstance->SNO->WriteToSnoMask('l',"AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
 601                                 this->ConnectServer(&(*x));
 602                         }
 603                 }
 604         }
 605 }
 606
 607 int ModuleSpanningTree::HandleVersion(const char** parameters, int pcnt, userrec* user)
 608 {
 609         // we've already checked if pcnt > 0, so this is safe
 610         TreeServer* found = Utils->FindServerMask(parameters[0]);
 611         if (found)
 612         {
 613                 std::string Version = found->GetVersion();
 614                 user->WriteServ("351 %s :%s",user->nick,Version.c_str());
 615                 if (found == Utils->TreeRoot)
 616                 {
 617                         ServerInstance->Config->Send005(user);
 618                 }
 619         }
 620         else
 621         {
 622                 user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
 623         }
 624         return 1;
 625 }
 626
 627 /* This method will attempt to get a link message out to as many people as is required.
 628  * If a user is provided, and that user is local, then the user is sent the message using
 629  * WriteServ (they are the local initiator of that message). If the user is remote, they are
 630  * sent that message remotely via PUSH.
 631  * If the user is NULL, then the notice is sent locally via WriteToSnoMask with snomask 'l',
 632  * and remotely via SNONOTICE with mask 'l'.
 633  */
 634 void ModuleSpanningTree::RemoteMessage(userrec* user, const char* format, ...)
 635 {
 636         std::deque<std::string> params;
 637         char text[MAXBUF];
 638         va_list argsPtr;
 639
 640         va_start(argsPtr, format);
 641         vsnprintf(text, MAXBUF, format, argsPtr);
 642         va_end(argsPtr);
 643
 644         if (!user)
 645         {
 646                 /* No user, target it generically at everyone */
 647                 ServerInstance->SNO->WriteToSnoMask('l', "%s", text);
 648                 params.push_back("l");
 649                 params.push_back(std::string(":") + text);
 650                 Utils->DoOneToMany(ServerInstance->Config->ServerName, "SNONOTICE", params);
 651         }
 652         else
 653         {
 654                 if (IS_LOCAL(user))
 655                         user->WriteServ("NOTICE %s :%s", user->nick, text);
 656                 else
 657                 {
 658                         params.push_back(user->uuid);
 659                         params.push_back(std::string("::") + ServerInstance->Config->ServerName + " NOTICE " + user->nick + " :*** From " +
 660                                         ServerInstance->Config->ServerName+ ": " + text);
 661                         Utils->DoOneToMany(ServerInstance->Config->ServerName, "PUSH", params);
 662                 }
 663         }
 664 }
 665
 666 int ModuleSpanningTree::HandleConnect(const char** parameters, int pcnt, userrec* user)
 667 {
 668         for (std::vector<Link>::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++)
 669         {
 670                 if (ServerInstance->MatchText(x->Name.c_str(),parameters[0]))
 671                 {
 672                         TreeServer* CheckDupe = Utils->FindServer(x->Name.c_str());
 673                         if (!CheckDupe)
 674                         {
 675                                 RemoteMessage(user, "*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",user->nick,x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
 676                                 ConnectServer(&(*x));
 677                                 return 1;
 678                         }
 679                         else
 680                         {
 681                                 RemoteMessage(user, "*** CONNECT: Server \002%s\002 already exists on the network and is connected via \002%s\002",user->nick,x->Name.c_str(),CheckDupe->GetParent()->GetName().c_str());
 682                                 return 1;
 683                         }
 684                 }
 685         }
 686         RemoteMessage(user, "NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
 687         return 1;
 688 }
 689
 690 void ModuleSpanningTree::BroadcastTimeSync()
 691 {
 692         if (Utils->MasterTime)
 693         {
 694                 std::deque<std::string> params;
 695                 params.push_back(ConvToStr(ServerInstance->Time(false)));
 696                 params.push_back("FORCE");
 697                 Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
 698         }
 699 }
 700
 701 int ModuleSpanningTree::OnStats(char statschar, userrec* user, string_list &results)
 702 {
 703         if ((statschar == 'c') || (statschar == 'n'))
 704         {
 705                 for (unsigned int i = 0; i < Utils->LinkBlocks.size(); i++)
 706                 {
 707                         results.push_back(std::string(ServerInstance->Config->ServerName)+" 213 "+user->nick+" "+statschar+" *@"+(Utils->LinkBlocks[i].HiddenFromStats ? "<hidden>" : Utils->LinkBlocks[i].IPAddr)+" * "+Utils->LinkBlocks[i].Name.c_str()+" "+ConvToStr(Utils->LinkBlocks[i].Port)+" "+(Utils->LinkBlocks[i].Hook.empty() ? "plaintext" : Utils->LinkBlocks[i].Hook)+" "+(Utils->LinkBlocks[i].AutoConnect ? 'a' : '-')+'s');
 708                         if (statschar == 'c')
 709                                 results.push_back(std::string(ServerInstance->Config->ServerName)+" 244 "+user->nick+" H * * "+Utils->LinkBlocks[i].Name.c_str());
 710                 }
 711                 results.push_back(std::string(ServerInstance->Config->ServerName)+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
 712                 ServerInstance->SNO->WriteToSnoMask('t',"%s '%c' requested by %s (%s@%s)",(!strcmp(user->server,ServerInstance->Config->ServerName) ? "Stats" : "Remote stats"),statschar,user->nick,user->ident,user->host);
 713                 return 1;
 714         }
 715
 716         if (statschar == 'p')
 717         {
 718                 /* show all server ports, after showing client ports. -- w00t */
 719
 720                 for (unsigned int i = 0; i < Utils->Bindings.size(); i++)
 721                 {
 722                         std::string ip = Utils->Bindings[i]->IP;
 723                         if (ip.empty())
 724                                 ip = "*";
 725
 726                         std::string transport("plaintext");
 727                         if (Utils->Bindings[i]->GetHook())
 728                                 transport = InspSocketNameRequest(this, Utils->Bindings[i]->GetHook()).Send();
 729
 730                         results.push_back(ConvToStr(ServerInstance->Config->ServerName) + " 249 "+user->nick+" :" + ip + ":" + ConvToStr(Utils->Bindings[i]->port)+
 731                                 " (server, " + transport + ")");
 732                 }
 733         }
 734         return 0;
 735 }
 736
 737 int ModuleSpanningTree::OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)
 738 {
 739         /* If the command doesnt appear to be valid, we dont want to mess with it. */
 740         if (!validated)
 741                 return 0;
 742
 743         if (command == "CONNECT")
 744         {
 745                 return this->HandleConnect(parameters,pcnt,user);
 746         }
 747         else if (command == "STATS")
 748         {
 749                 return this->HandleStats(parameters,pcnt,user);
 750         }
 751         else if (command == "MOTD")
 752         {
 753                 return this->HandleMotd(parameters,pcnt,user);
 754         }
 755         else if (command == "ADMIN")
 756         {
 757                 return this->HandleAdmin(parameters,pcnt,user);
 758         }
 759         else if (command == "SQUIT")
 760         {
 761                 return this->HandleSquit(parameters,pcnt,user);
 762         }
 763         else if (command == "MAP")
 764         {
 765                 this->HandleMap(parameters,pcnt,user);
 766                 return 1;
 767         }
 768         else if ((command == "TIME") && (pcnt > 0))
 769         {
 770                 return this->HandleTime(parameters,pcnt,user);
 771         }
 772         else if (command == "LUSERS")
 773         {
 774                 this->HandleLusers(parameters,pcnt,user);
 775                 return 1;
 776         }
 777         else if (command == "LINKS")
 778         {
 779                 this->HandleLinks(parameters,pcnt,user);
 780                 return 1;
 781         }
 782         else if (command == "WHOIS")
 783         {
 784                 if (pcnt > 1)
 785                 {
 786                         // remote whois
 787                         return this->HandleRemoteWhois(parameters,pcnt,user);
 788                 }
 789         }
 790         else if ((command == "VERSION") && (pcnt > 0))
 791         {
 792                 this->HandleVersion(parameters,pcnt,user);
 793                 return 1;
 794         }
 795         else if ((command == "MODULES") && (pcnt > 0))
 796         {
 797                 return this->HandleModules(parameters,pcnt,user);
 798         }
 799         return 0;
 800 }
 801
 802 void ModuleSpanningTree::OnPostCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, CmdResult result, const std::string &original_line)
 803 {
 804         if ((result == CMD_SUCCESS) && (ServerInstance->IsValidModuleCommand(command, pcnt, user)))
 805         {
 806                 /* Safe, we know its non-null because IsValidModuleCommand returned true */
 807                 command_t* thiscmd = ServerInstance->Parser->GetHandler(command);
 808                 // this bit of code cleverly routes all module commands
 809                 // to all remote severs *automatically* so that modules
 810                 // can just handle commands locally, without having
 811                 // to have any special provision in place for remote
 812                 // commands and linking protocols.
 813                 std::deque<std::string> params;
 814                 params.clear();
 815                 int n_translate = thiscmd->translation.size();
 816                 TranslateType translate_to;
 817
 818                 for (int j = 0; j < pcnt; j++)
 819                 {
 820                         std::string target;
 821
 822                         /* Map all items to UUIDs where neccessary */
 823                         if (j < n_translate)
 824                         {
 825                                 /* We have a translation mapping for this index */
 826                                 translate_to = thiscmd->translation[j] != TR_END ? thiscmd->translation[j] : TR_TEXT;
 827                         }
 828                         else
 829                                 translate_to = TR_TEXT;
 830
 831                         ServerInstance->Parser->TranslateUIDs(translate_to, parameters[j], target);
 832
 833                         if (strchr(parameters[j],' '))
 834                                 params.push_back(":" + target);
 835                         else
 836                                 params.push_back(target);
 837                 }
 838                 Utils->DoOneToMany(user->uuid, command, params);
 839         }
 840 }
 841
 842 void ModuleSpanningTree::OnGetServerDescription(const std::string &servername,std::string &description)
 843 {
 844         TreeServer* s = Utils->FindServer(servername);
 845         if (s)
 846         {
 847                 description = s->GetDesc();
 848         }
 849 }
 850
 851 void ModuleSpanningTree::OnUserInvite(userrec* source,userrec* dest,chanrec* channel)
 852 {
 853         if (IS_LOCAL(source))
 854         {
 855                 std::deque<std::string> params;
 856                 params.push_back(dest->uuid);
 857                 params.push_back(channel->name);
 858                 Utils->DoOneToMany(source->uuid,"INVITE",params);
 859         }
 860 }
 861
 862 void ModuleSpanningTree::OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic)
 863 {
 864         std::deque<std::string> params;
 865         params.push_back(chan->name);
 866         params.push_back(":"+topic);
 867         Utils->DoOneToMany(user->uuid,"TOPIC",params);
 868 }
 869
 870 void ModuleSpanningTree::OnWallops(userrec* user, const std::string &text)
 871 {
 872         if (IS_LOCAL(user))
 873         {
 874                 std::deque<std::string> params;
 875                 params.push_back(":"+text);
 876                 Utils->DoOneToMany(user->uuid,"WALLOPS",params);
 877         }
 878 }
 879
 880 void ModuleSpanningTree::OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 881 {
 882         if (target_type == TYPE_USER)
 883         {
 884                 userrec* d = (userrec*)dest;
 885                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 886                 {
 887                         std::deque<std::string> params;
 888                         params.clear();
 889                         params.push_back(d->uuid);
 890                         params.push_back(":"+text);
 891                         Utils->DoOneToOne(user->uuid,"NOTICE",params,d->server);
 892                 }
 893         }
 894         else if (target_type == TYPE_CHANNEL)
 895         {
 896                 if (IS_LOCAL(user))
 897                 {
 898                         chanrec *c = (chanrec*)dest;
 899                         if (c)
 900                         {
 901                                 std::string cname = c->name;
 902                                 if (status)
 903                                         cname = status + cname;
 904                                 TreeServerList list;
 905                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 906                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 907                                 {
 908                                         TreeSocket* Sock = i->second->GetSocket();
 909                                         if (Sock)
 910                                                 Sock->WriteLine(":"+std::string(user->uuid)+" NOTICE "+cname+" :"+text);
 911                                 }
 912                         }
 913                 }
 914         }
 915         else if (target_type == TYPE_SERVER)
 916         {
 917                 if (IS_LOCAL(user))
 918                 {
 919                         char* target = (char*)dest;
 920                         std::deque<std::string> par;
 921                         par.push_back(target);
 922                         par.push_back(":"+text);
 923                         Utils->DoOneToMany(user->uuid,"NOTICE",par);
 924                 }
 925         }
 926 }
 927
 928 void ModuleSpanningTree::OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)
 929 {
 930         if (target_type == TYPE_USER)
 931         {
 932                 // route private messages which are targetted at clients only to the server
 933                 // which needs to receive them
 934                 userrec* d = (userrec*)dest;
 935                 if ((d->GetFd() < 0) && (IS_LOCAL(user)))
 936                 {
 937                         std::deque<std::string> params;
 938                         params.clear();
 939                         params.push_back(d->uuid);
 940                         params.push_back(":"+text);
 941                         Utils->DoOneToOne(user->uuid,"PRIVMSG",params,d->server);
 942                 }
 943         }
 944         else if (target_type == TYPE_CHANNEL)
 945         {
 946                 if (IS_LOCAL(user))
 947                 {
 948                         chanrec *c = (chanrec*)dest;
 949                         if (c)
 950                         {
 951                                 std::string cname = c->name;
 952                                 if (status)
 953                                         cname = status + cname;
 954                                 TreeServerList list;
 955                                 Utils->GetListOfServersForChannel(c,list,status,exempt_list);
 956                                 for (TreeServerList::iterator i = list.begin(); i != list.end(); i++)
 957                                 {
 958                                         TreeSocket* Sock = i->second->GetSocket();
 959                                         if (Sock)
 960                                                 Sock->WriteLine(":"+std::string(user->uuid)+" PRIVMSG "+cname+" :"+text);
 961                                 }
 962                         }
 963                 }
 964         }
 965         else if (target_type == TYPE_SERVER)
 966         {
 967                 if (IS_LOCAL(user))
 968                 {
 969                         char* target = (char*)dest;
 970                         std::deque<std::string> par;
 971                         par.push_back(target);
 972                         par.push_back(":"+text);
 973                         Utils->DoOneToMany(user->uuid,"PRIVMSG",par);
 974                 }
 975         }
 976 }
 977
 978 void ModuleSpanningTree::OnBackgroundTimer(time_t curtime)
 979 {
 980         AutoConnectServers(curtime);
 981         DoPingChecks(curtime);
 982 }
 983
 984 void ModuleSpanningTree::OnUserJoin(userrec* user, chanrec* channel, bool &silent)
 985 {
 986         // Only do this for local users
 987         if (IS_LOCAL(user))
 988         {
 989                 if (channel->GetUserCounter() == 1)
 990                 {
 991                         std::deque<std::string> params;
 992                         // set up their permissions and the channel TS with FJOIN.
 993                         // All users are FJOINed now, because a module may specify
 994                         // new joining permissions for the user.
 995                         params.push_back(channel->name);
 996                         params.push_back(ConvToStr(channel->age));
 997                         params.push_back(std::string(channel->GetAllPrefixChars(user))+","+std::string(user->uuid));
 998                         Utils->DoOneToMany(ServerInstance->Config->ServerName,"FJOIN",params);
 999                         /* First user in, sync the modes for the channel */
1000                         params.pop_back();
1001                         params.push_back(channel->ChanModes(true));
1002                         Utils->DoOneToMany(ServerInstance->Config->ServerName,"FMODE",params);
1003                 }
1004                 else
1005                 {
1006                         std::deque<std::string> params;
1007                         params.push_back(channel->name);
1008                         params.push_back(ConvToStr(channel->age));
1009                         Utils->DoOneToMany(user->uuid,"JOIN",params);
1010                 }
1011         }
1012 }
1013
1014 void ModuleSpanningTree::OnChangeHost(userrec* user, const std::string &newhost)
1015 {
1016         // only occurs for local clients
1017         if (user->registered != REG_ALL)
1018                 return;
1019         std::deque<std::string> params;
1020         params.push_back(newhost);
1021         Utils->DoOneToMany(user->uuid,"FHOST",params);
1022 }
1023
1024 void ModuleSpanningTree::OnChangeName(userrec* user, const std::string &gecos)
1025 {
1026         // only occurs for local clients
1027         if (user->registered != REG_ALL)
1028                 return;
1029         std::deque<std::string> params;
1030         params.push_back(gecos);
1031         Utils->DoOneToMany(user->uuid,"FNAME",params);
1032 }
1033
1034 void ModuleSpanningTree::OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage, bool &silent)
1035 {
1036         if (IS_LOCAL(user))
1037         {
1038                 std::deque<std::string> params;
1039                 params.push_back(channel->name);
1040                 if (!partmessage.empty())
1041                         params.push_back(":"+partmessage);
1042                 Utils->DoOneToMany(user->uuid,"PART",params);
1043         }
1044 }
1045
1046 void ModuleSpanningTree::OnUserConnect(userrec* user)
1047 {
1048         char agestr[MAXBUF];
1049         if (IS_LOCAL(user))
1050         {
1051                 std::deque<std::string> params;
1052                 snprintf(agestr,MAXBUF,"%lu",(unsigned long)user->age);
1053                 params.push_back(user->uuid);
1054                 params.push_back(agestr);
1055                 params.push_back(user->nick);
1056                 params.push_back(user->host);
1057                 params.push_back(user->dhost);
1058                 params.push_back(user->ident);
1059                 params.push_back("+"+std::string(user->FormatModes()));
1060                 params.push_back(user->GetIPString());
1061                 params.push_back(":"+std::string(user->fullname));
1062                 Utils->DoOneToMany(ServerInstance->Config->ServerName, "UID", params);
1063                 // User is Local, change needs to be reflected!
1064                 TreeServer* SourceServer = Utils->FindServer(user->server);
1065                 if (SourceServer)
1066                 {
1067                         SourceServer->AddUserCount();
1068                 }
1069         }
1070 }
1071
1072 void ModuleSpanningTree::OnUserQuit(userrec* user, const std::string &reason, const std::string &oper_message)
1073 {
1074         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
1075         {
1076                 std::deque<std::string> params;
1077
1078                 if (oper_message != reason)
1079                 {
1080                         params.push_back(":"+oper_message);
1081                         Utils->DoOneToMany(user->uuid,"OPERQUIT",params);
1082                 }
1083                 params.clear();
1084                 params.push_back(":"+reason);
1085                 Utils->DoOneToMany(user->uuid,"QUIT",params);
1086         }
1087         // Regardless, We need to modify the user Counts..
1088         TreeServer* SourceServer = Utils->FindServer(user->server);
1089         if (SourceServer)
1090         {
1091                 SourceServer->DelUserCount();
1092         }
1093 }
1094
1095 void ModuleSpanningTree::OnUserPostNick(userrec* user, const std::string &oldnick)
1096 {
1097         if (IS_LOCAL(user))
1098         {
1099                 std::deque<std::string> params;
1100                 params.push_back(user->nick);
1101                 Utils->DoOneToMany(user->uuid,"NICK",params);
1102         }
1103 }
1104
1105 void ModuleSpanningTree::OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason, bool &silent)
1106 {
1107         if ((source) && (IS_LOCAL(source)))
1108         {
1109                 std::deque<std::string> params;
1110                 params.push_back(chan->name);
1111                 params.push_back(user->uuid);
1112                 params.push_back(":"+reason);
1113                 Utils->DoOneToMany(source->uuid,"KICK",params);
1114         }
1115         else if (!source)
1116         {
1117                 std::deque<std::string> params;
1118                 params.push_back(chan->name);
1119                 params.push_back(user->uuid);
1120                 params.push_back(":"+reason);
1121                 Utils->DoOneToMany(ServerInstance->Config->ServerName,"KICK",params);
1122         }
1123 }
1124
1125 void ModuleSpanningTree::OnRemoteKill(userrec* source, userrec* dest, const std::string &reason, const std::string &operreason)
1126 {
1127         std::deque<std::string> params;
1128         params.push_back(":"+reason);
1129         Utils->DoOneToMany(dest->uuid,"OPERQUIT",params);
1130         params.clear();
1131         params.push_back(dest->uuid);
1132         params.push_back(":"+reason);
1133         dest->SetOperQuit(operreason);
1134         Utils->DoOneToMany(source->uuid,"KILL",params);
1135 }
1136
1137 void ModuleSpanningTree::OnRehash(userrec* user, const std::string &parameter)
1138 {
1139         if (!parameter.empty())
1140         {
1141                 std::deque<std::string> params;
1142                 params.push_back(parameter);
1143                 Utils->DoOneToMany(user ? user->nick : ServerInstance->Config->ServerName, "REHASH", params);
1144                 // check for self
1145                 if (ServerInstance->MatchText(ServerInstance->Config->ServerName,parameter))
1146                 {
1147                         ServerInstance->WriteOpers("*** Remote rehash initiated locally by \002%s\002", user ? user->nick : ServerInstance->Config->ServerName);
1148                         ServerInstance->RehashServer();
1149                 }
1150         }
1151         Utils->ReadConfiguration(false);
1152         InitializeDisabledCommands(ServerInstance->Config->DisabledCommands, ServerInstance);
1153 }
1154
1155 // note: the protocol does not allow direct umode +o except
1156 // via NICK with 8 params. sending OPERTYPE infers +o modechange
1157 // locally.
1158 void ModuleSpanningTree::OnOper(userrec* user, const std::string &opertype)
1159 {
1160         if (IS_LOCAL(user))
1161         {
1162                 std::deque<std::string> params;
1163                 params.push_back(opertype);
1164                 Utils->DoOneToMany(user->uuid,"OPERTYPE",params);
1165         }
1166 }
1167
1168 void ModuleSpanningTree::OnLine(userrec* source, const std::string &host, bool adding, char linetype, long duration, const std::string &reason)
1169 {
1170         if (!source)
1171         {
1172                 /* Server-set lines */
1173                 char data[MAXBUF];
1174                 snprintf(data,MAXBUF,"%c %s %s %lu %lu :%s", linetype, host.c_str(), ServerInstance->Config->ServerName, (unsigned long)ServerInstance->Time(false),
1175                                 (unsigned long)duration, reason.c_str());
1176                 std::deque<std::string> params;
1177                 params.push_back(data);
1178                 Utils->DoOneToMany(ServerInstance->Config->ServerName, "ADDLINE", params);
1179         }
1180         else
1181         {
1182                 if (IS_LOCAL(source))
1183                 {
1184                         char type[8];
1185                         snprintf(type,8,"%cLINE",linetype);
1186                         std::string stype = type;
1187                         if (adding)
1188                         {
1189                                 char sduration[MAXBUF];
1190                                 snprintf(sduration,MAXBUF,"%ld",duration);
1191                                 std::deque<std::string> params;
1192                                 params.push_back(host);
1193                                 params.push_back(sduration);
1194                                 params.push_back(":"+reason);
1195                                 Utils->DoOneToMany(source->uuid,stype,params);
1196                         }
1197                         else
1198                         {
1199                                 std::deque<std::string> params;
1200                                 params.push_back(host);
1201                                 Utils->DoOneToMany(source->uuid,stype,params);
1202                         }
1203                 }
1204         }
1205 }
1206
1207 void ModuleSpanningTree::OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
1208 {
1209         OnLine(source,hostmask,true,'G',duration,reason);
1210 }
1211
1212 void ModuleSpanningTree::OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask)
1213 {
1214         OnLine(source,ipmask,true,'Z',duration,reason);
1215 }
1216
1217 void ModuleSpanningTree::OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask)
1218 {
1219         OnLine(source,nickmask,true,'Q',duration,reason);
1220 }
1221
1222 void ModuleSpanningTree::OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask)
1223 {
1224         OnLine(source,hostmask,true,'E',duration,reason);
1225 }
1226
1227 void ModuleSpanningTree::OnDelGLine(userrec* source, const std::string &hostmask)
1228 {
1229         OnLine(source,hostmask,false,'G',0,"");
1230 }
1231
1232 void ModuleSpanningTree::OnDelZLine(userrec* source, const std::string &ipmask)
1233 {
1234         OnLine(source,ipmask,false,'Z',0,"");
1235 }
1236
1237 void ModuleSpanningTree::OnDelQLine(userrec* source, const std::string &nickmask)
1238 {
1239         OnLine(source,nickmask,false,'Q',0,"");
1240 }
1241
1242 void ModuleSpanningTree::OnDelELine(userrec* source, const std::string &hostmask)
1243 {
1244         OnLine(source,hostmask,false,'E',0,"");
1245 }
1246
1247 void ModuleSpanningTree::OnMode(userrec* user, void* dest, int target_type, const std::string &text)
1248 {
1249         if ((IS_LOCAL(user)) && (user->registered == REG_ALL))
1250         {
1251                 std::deque<std::string> params;
1252                 std::string command;
1253                 std::string output_text;
1254
1255                 ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, text, output_text);
1256
1257                 if (target_type == TYPE_USER)
1258                 {
1259                         userrec* u = (userrec*)dest;
1260                         params.push_back(u->uuid);
1261                         params.push_back(output_text);
1262                         command = "MODE";
1263                 }
1264                 else
1265                 {
1266                         chanrec* c = (chanrec*)dest;
1267                         params.push_back(c->name);
1268                         params.push_back(ConvToStr(c->age));
1269                         params.push_back(output_text);
1270                         command = "FMODE";
1271                 }
1272
1273                 Utils->DoOneToMany(user->uuid, command, params);
1274         }
1275 }
1276
1277 void ModuleSpanningTree::OnSetAway(userrec* user)
1278 {
1279         if (IS_LOCAL(user))
1280         {
1281                 std::deque<std::string> params;
1282                 params.push_back(":"+std::string(user->awaymsg));
1283                 Utils->DoOneToMany(user->uuid,"AWAY",params);
1284         }
1285 }
1286
1287 void ModuleSpanningTree::OnCancelAway(userrec* user)
1288 {
1289         if (IS_LOCAL(user))
1290         {
1291                 std::deque<std::string> params;
1292                 params.clear();
1293                 Utils->DoOneToMany(user->uuid,"AWAY",params);
1294         }
1295 }
1296
1297 void ModuleSpanningTree::ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline)
1298 {
1299         TreeSocket* s = (TreeSocket*)opaque;
1300         std::string output_text;
1301
1302         ServerInstance->Parser->TranslateUIDs(TR_SPACENICKLIST, modeline, output_text);
1303
1304         if (target)
1305         {
1306                 if (target_type == TYPE_USER)
1307                 {
1308                         userrec* u = (userrec*)target;
1309                         s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+u->uuid+" "+ConvToStr(u->age)+" "+output_text);
1310                 }
1311                 else
1312                 {
1313                         chanrec* c = (chanrec*)target;
1314                         s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" FMODE "+c->name+" "+ConvToStr(c->age)+" "+output_text);
1315                 }
1316         }
1317 }
1318
1319 void ModuleSpanningTree::ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata)
1320 {
1321         TreeSocket* s = (TreeSocket*)opaque;
1322         if (target)
1323         {
1324                 if (target_type == TYPE_USER)
1325                 {
1326                         userrec* u = (userrec*)target;
1327                         s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+u->uuid+" "+extname+" :"+extdata);
1328                 }
1329                 else if (target_type == TYPE_CHANNEL)
1330                 {
1331                         chanrec* c = (chanrec*)target;
1332                         s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA "+c->name+" "+extname+" :"+extdata);
1333                 }
1334         }
1335         if (target_type == TYPE_OTHER)
1336         {
1337                 s->WriteLine(std::string(":")+ServerInstance->Config->ServerName+" METADATA * "+extname+" :"+extdata);
1338         }
1339 }
1340
1341 void ModuleSpanningTree::OnEvent(Event* event)
1342 {
1343         std::deque<std::string>* params = (std::deque<std::string>*)event->GetData();
1344         if (event->GetEventID() == "send_metadata")
1345         {
1346                 if (params->size() < 3)
1347                         return;
1348                 (*params)[2] = ":" + (*params)[2];
1349                 Utils->DoOneToMany(ServerInstance->Config->ServerName,"METADATA",*params);
1350         }
1351         else if (event->GetEventID() == "send_topic")
1352         {
1353                 if (params->size() < 2)
1354                         return;
1355                 (*params)[1] = ":" + (*params)[1];
1356                 params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
1357                 params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time(true)));
1358                 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FTOPIC",*params);
1359         }
1360         else if (event->GetEventID() == "send_mode")
1361         {
1362                 if (params->size() < 2)
1363                         return;
1364                 // Insert the TS value of the object, either userrec or chanrec
1365                 time_t ourTS = 0;
1366                 std::string output_text;
1367
1368                 /* Warning: in-place translation is only safe for type TR_NICK */
1369                 for (size_t n = 0; n < params->size(); n++)
1370                         ServerInstance->Parser->TranslateUIDs(TR_NICK, (*params)[n], (*params)[n]);
1371
1372                 userrec* a = ServerInstance->FindNick((*params)[0]);
1373                 if (a)
1374                 {
1375                         ourTS = a->age;
1376                         Utils->DoOneToMany(ServerInstance->Config->ServerName,"MODE",*params);
1377                         return;
1378                 }
1379                 else
1380                 {
1381                         chanrec* a = ServerInstance->FindChan((*params)[0]);
1382                         if (a)
1383                         {
1384                                 ourTS = a->age;
1385                                 params->insert(params->begin() + 1,ConvToStr(ourTS));
1386                                 Utils->DoOneToMany(ServerInstance->Config->ServerName,"FMODE",*params);
1387                         }
1388                 }
1389         }
1390         else if (event->GetEventID() == "send_mode_explicit")
1391         {
1392                 if (params->size() < 2)
1393                         return;
1394                 std::string output_text;
1395
1396                 /* Warning: in-place translation is only safe for type TR_NICK */
1397                 for (size_t n = 0; n < params->size(); n++)
1398                         ServerInstance->Parser->TranslateUIDs(TR_NICK, (*params)[n], (*params)[n]);
1399
1400                 Utils->DoOneToMany(ServerInstance->Config->ServerName,"MODE",*params);
1401         }
1402         else if (event->GetEventID() == "send_opers")
1403         {
1404                 if (params->size() < 1)
1405                         return;
1406                 (*params)[0] = ":" + (*params)[0];
1407                 Utils->DoOneToMany(ServerInstance->Config->ServerName,"OPERNOTICE",*params);
1408         }
1409         else if (event->GetEventID() == "send_modeset")
1410         {
1411                 if (params->size() < 2)
1412                         return;
1413                 (*params)[1] = ":" + (*params)[1];
1414                 Utils->DoOneToMany(ServerInstance->Config->ServerName,"MODENOTICE",*params);
1415         }
1416         else if (event->GetEventID() == "send_snoset")
1417         {
1418                 if (params->size() < 2)
1419                         return;
1420                 (*params)[1] = ":" + (*params)[1];
1421                 Utils->DoOneToMany(ServerInstance->Config->ServerName,"SNONOTICE",*params);
1422         }
1423         else if (event->GetEventID() == "send_push")
1424         {
1425                 if (params->size() < 2)
1426                         return;
1427
1428                 userrec *a = ServerInstance->FindNick((*params)[0]);
1429
1430                 if (!a)
1431                         return;
1432
1433                 (*params)[0] = a->uuid;
1434                 (*params)[1] = ":" + (*params)[1];
1435                 Utils->DoOneToOne(ServerInstance->Config->ServerName, "PUSH", *params, a->server);
1436         }
1437 }
1438
1439 ModuleSpanningTree::~ModuleSpanningTree()
1440 {
1441         /* This will also free the listeners */
1442         delete Utils;
1443         if (SyncTimer)
1444                 ServerInstance->Timers->DelTimer(SyncTimer);
1445
1446         ServerInstance->Timers->DelTimer(RefreshTimer);
1447
1448         ServerInstance->DoneWithInterface("InspSocketHook");
1449 }
1450
1451 Version ModuleSpanningTree::GetVersion()
1452 {
1453         return Version(1,1,0,2,VF_VENDOR,API_VERSION);
1454 }
1455
1456 void ModuleSpanningTree::Implements(char* List)
1457 {
1458         List[I_OnPreCommand] = List[I_OnGetServerDescription] = List[I_OnUserInvite] = List[I_OnPostLocalTopicChange] = 1;
1459         List[I_OnWallops] = List[I_OnUserNotice] = List[I_OnUserMessage] = List[I_OnBackgroundTimer] = 1;
1460         List[I_OnUserJoin] = List[I_OnChangeHost] = List[I_OnChangeName] = List[I_OnUserPart] = List[I_OnUserConnect] = 1;
1461         List[I_OnUserQuit] = List[I_OnUserPostNick] = List[I_OnUserKick] = List[I_OnRemoteKill] = List[I_OnRehash] = 1;
1462         List[I_OnOper] = List[I_OnAddGLine] = List[I_OnAddZLine] = List[I_OnAddQLine] = List[I_OnAddELine] = 1;
1463         List[I_OnDelGLine] = List[I_OnDelZLine] = List[I_OnDelQLine] = List[I_OnDelELine] = List[I_ProtoSendMode] = List[I_OnMode] = 1;
1464         List[I_OnStats] = List[I_ProtoSendMetaData] = List[I_OnEvent] = List[I_OnSetAway] = List[I_OnCancelAway] = List[I_OnPostCommand] = 1;
1465 }
1466
1467 /* It is IMPORTANT that m_spanningtree is the last module in the chain
1468  * so that any activity it sees is FINAL, e.g. we arent going to send out
1469  * a NICK message before m_cloaking has finished putting the +x on the user,
1470  * etc etc.
1471  * Therefore, we return PRIORITY_LAST to make sure we end up at the END of
1472  * the module call queue.
1473  */
1474 Priority ModuleSpanningTree::Prioritize()
1475 {
1476         return PRIORITY_LAST;
1477 }
1478
1479 MODULE_INIT(ModuleSpanningTree)
1480