source/Bot.C

   1 // Bot.C  -*- C++ -*-
   2 // Copyright (c) 1997, 1998 Etienne BERNARD
   3 // Copyright (C) 2002,2003,2005 Clinton Ebadi
   4
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 2 of the License, or
   8 // any later version.
   9
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14
  15 // You should have received a copy of the GNU General Public License
  16 // along with this program; if not, write to the Free Software
  17 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18
  19 #include <fstream>
  20 #include <algorithm>
  21 #include <iomanip>
  22 #include <cstring>
  23 #include <cstdlib>
  24 #include <cstdio>
  25 #include <sys/time.h>
  26 #include <sys/types.h>
  27 #include <unistd.h>
  28
  29 #include "Bot.H"
  30 #include "DCCConnection.H"
  31 #include "DCCChatConnection.H"
  32 #include "StringTokenizer.H"
  33 #include "ServerConnection.H"
  34 #include "Utils.H"
  35 #include "UserCommands.H"
  36 #include "DCCManager.H"
  37
  38
  39 unsigned int Bot::MAX_MESSAGES = 2;
  40 unsigned int Bot::MAX_NICKLENGTH = 9;
  41
  42 #define DEFAULT_NICKNAME "Bobot"
  43 #define DEFAULT_USERNAME "bobot"
  44 #define DEFAULT_IRCNAME "I'm a bobot++!"
  45 #define DEFAULT_COMMANDCHAR '!'
  46 #define DEFAULT_USERLISTFILENAME "bot.users"
  47 #define DEFAULT_SHITLISTFILENAME "bot.shit"
  48 #define DEFAULT_HELPFILENAME "bot.help"
  49 #define DEFAULT_SCRIPTLOGFILENAME "script.log"
  50 #define DEFAULT_LOGFILENAME "bot.log"
  51 #define DEFAULT_LOGDIR getenv ("HOME") + String("/.bobotpp/logs/")
  52 #define DEFAULT_INITFILENAME "bot.init"
  53 #ifdef USESCRIPTS
  54 #define DEFAULT_AUTOEXECFILENAME "bot.autoexec"
  55 #endif
  56
  57 Bot::Bot(String filename, bool debug_on)
  58   : nickName(DEFAULT_NICKNAME),
  59     wantedNickName(DEFAULT_NICKNAME),
  60     userName(DEFAULT_USERNAME),
  61     ircName(DEFAULT_IRCNAME),
  62     versionString(VERSION_STRING),
  63     userHost(""),
  64     localIP(""),
  65     commandChar(DEFAULT_COMMANDCHAR),
  66     userListFileName(DEFAULT_USERLISTFILENAME),
  67     shitListFileName(DEFAULT_SHITLISTFILENAME),
  68     helpFileName(DEFAULT_HELPFILENAME),
  69     initFileName(DEFAULT_INITFILENAME),
  70     connected(false),
  71     debug(debug_on),
  72     stop(false),
  73     sentPing(false),
  74     startTime(time(NULL)),
  75     currentTime(startTime),
  76     lastNickNameChange(startTime),
  77     lastChannelJoin(startTime),
  78     serverConnection(0),
  79     sentUserhostID(0),
  80     receivedUserhostID(0),
  81     logFileName(DEFAULT_LOGFILENAME),
  82     logs_dir (DEFAULT_LOGDIR),
  83     configFileName (filename),
  84 #ifdef USESCRIPTS
  85     scriptLogFileName(DEFAULT_SCRIPTLOGFILENAME),
  86     autoexecFileName(DEFAULT_AUTOEXECFILENAME)
  87 #endif
  88 {
  89 #ifdef HAVE_STL_CLEAR
  90   wantedChannels.clear();
  91   ignoredUserhosts.clear();
  92   spyList.clear();
  93   userhostMap.clear();
  94 #endif
  95
  96   init_user_functions ();
  97
  98   set_log_dir (logs_dir);
  99   set_log_file (logFileName);
 100
 101
 102   channelList = new ChannelList();
 103   serverList = new ServerList();
 104   readConfig();
 105   userList = new UserList(userListFileName);
 106   shitList = new ShitList(shitListFileName);
 107   todoList = new TodoList();
 108   dccConnections = new DCCManager ();
 109
 110   // Let's read the alias file
 111   std::ifstream initFile(initFileName);
 112
 113   if (initFile)
 114     {
 115       // FIXME: these variables are current String instead of
 116       // std::string because String>> reads an entire line. This code
 117       // needs to be rewritten to use std::string and std::getline (or
 118       // better yet, be removed entirely once BotConfig is in place)
 119       String temp, alias, command;
 120       int line = 0;
 121
 122       while (initFile >> temp, temp.length() != 0)
 123         {
 124           StringTokenizer st(temp);
 125
 126           line++;
 127           temp = Utils::trim_str (temp);
 128
 129           if (temp[0]=='#')
 130             {
 131               continue;
 132             }
 133
 134           if (st.count_tokens (' ') != 2)
 135             {
 136               std::cerr << "Error when reading alias file (" << initFileName
 137                         << ") line " << line << "...\n";
 138               continue;
 139             }
 140
 141           alias = Utils::to_upper (st.next_token());
 142           command = Utils::to_upper (st.next_token());
 143
 144           // Does the function already exist ?
 145           if (!userFunctions[alias])
 146             {
 147               if (userFunction *u = userFunctions[command])
 148                 userFunctions[alias] =
 149                   new
 150                   userFunction(u->function,
 151                                u->minLevel,
 152                                u->needsChannelName);
 153             }
 154         }
 155     }
 156
 157
 158   std::srand (std::time (0)); // srand for bot-random
 159
 160 #ifdef USESCRIPTS
 161   botInterp = new BotInterp(this, logs_dir + scriptLogFileName);
 162   botInterp->LoadScript(autoexecFileName);
 163 #endif
 164 }
 165
 166 Bot::~Bot()
 167 {
 168   Person *p;
 169   while (spyList.size() != 0) {
 170     p = (*spyList.begin()).second;
 171     spyList.erase(spyList.begin());
 172     delete p;
 173   }
 174   delete dccConnections;
 175   destroy_user_functions ();
 176
 177   wantedChannel *w;
 178   while (wantedChannels.size() != 0) {
 179     w = (*wantedChannels.begin()).second;
 180     wantedChannels.erase(wantedChannels.begin());
 181     delete w;
 182   }
 183   userList->save();
 184   shitList->save();
 185   delete channelList;
 186   delete userList;
 187   delete todoList;
 188   delete serverList;
 189   delete shitList;
 190   delete serverConnection;
 191   logLine("Stopping log.");
 192   logFile.close();
 193 }
 194
 195 void
 196 Bot::logLine(String line)
 197 {
 198   tm *d;
 199   std::time_t current_time = time(0);
 200
 201   d = localtime(&current_time);
 202   logFile << "[" <<  std::setfill('0') << std::setw(2)
 203           << d->tm_mday << "/" <<  std::setfill('0') << std::setw(2)
 204           << d->tm_mon + 1 << "/"
 205           << d->tm_year + 1900 << " - " <<  std::setfill('0') << std::setw(2)
 206           << d->tm_hour << ":" <<  std::setfill('0') << std::setw(2)
 207           << d->tm_min << ":" <<  std::setfill('0') << std::setw(2)
 208           << d->tm_sec << "] "
 209           << line
 210           << std::endl;
 211 }
 212
 213 void
 214 Bot::readConfig()
 215 {
 216   std::ifstream file(configFileName);
 217   String temp;
 218   int line = 1;
 219
 220   if (!file) {
 221     logLine(String("I cannot find the file ") + configFileName);
 222     return;
 223   }
 224
 225   while (!file.eof()) {
 226
 227     file >> temp;
 228
 229     if (temp.length() == 0 || temp[(unsigned int)0] == '#') {
 230       line++;
 231       continue;
 232     }
 233
 234     StringTokenizer st(temp);
 235     String command = Utils::to_upper (Utils::trim_str (st.next_token('=')));
 236     String parameters = Utils::trim_str (st.next_token('='));
 237
 238     if (command == "NICK" || command == "NICKNAME")
 239       nickName = wantedNickName = parameters;
 240     else if (command == "USERNAME")
 241       userName = parameters;
 242     else if (command == "IRCNAME" || command == "REALNAME")
 243       ircName = parameters;
 244     else if (command == "CMDCHAR" || command == "COMMAND")
 245       commandChar = parameters[(unsigned int)0];
 246     else if (command == "USERLIST")
 247       userListFileName = parameters;
 248     else if (command == "SHITLIST")
 249       shitListFileName = parameters;
 250     else if (command == "CHANNEL") {
 251       if (parameters.indexOf(':') == -1) {
 252         std::cout << "Warning. The 'channel' syntax has changed."
 253                   << " Please see the README file for more information."
 254                   << " I will use compatibility mode, but you're really"
 255                   << " missing something.\n";
 256         StringTokenizer st2(parameters);
 257         String name = Utils::to_lower (st2.next_token());
 258         String key = st2.next_token();
 259         wantedChannels[name] = new wantedChannel("", "", key);
 260       } else {
 261         StringTokenizer st2(parameters);
 262         String name = Utils::to_lower (st2.next_token(':'));
 263         String mode = st2.next_token(':');
 264         String keep = st2.next_token(':');
 265         String key = st2.next_token(':');
 266         wantedChannels[name] = new wantedChannel(mode, keep, key);
 267       }
 268     }
 269     else if (command == "LOGFILE")
 270       {
 271         if (parameters != logFileName)
 272           {
 273             if (parameters[(unsigned int)0] == '/')
 274               {
 275                 set_log_dir ("/");
 276                 set_log_file (parameters.subString (1));
 277               }
 278             else
 279               set_log_file (parameters);
 280           }
 281       }
 282 #ifdef USESCRIPTS
 283     else if (command == "SCRIPTLOGFILE")
 284       scriptLogFileName = parameters;
 285     else if (command == "AUTOEXECFILE")
 286       autoexecFileName = parameters;
 287 #endif
 288     else if (command == "INITFILE")
 289       initFileName = parameters;
 290     else if (command == "LOCALIP")
 291       localIP = parameters;
 292     else if (command == "MAXNICKLENGTH")
 293       MAX_NICKLENGTH = std::atoi (parameters);
 294     else if (command == "SERVER") {
 295       if (parameters.indexOf(' ') == -1)
 296         serverList->addServer(new Server(parameters));
 297       else {
 298         StringTokenizer st2(parameters);
 299         String name = st2.next_token();
 300         int port = std::atoi(st2.next_token().c_str());
 301         serverList->addServer(new Server(name,
 302                                          port,
 303                                          st2.next_token()));
 304       }
 305     }
 306     else {
 307       logLine(String("Syntax error in file ") + configFileName +
 308               ", line " + String((long)line));
 309       file.close();
 310       std::exit(1);
 311     }
 312
 313     line++;
 314   }
 315
 316   file.close();
 317 }
 318
 319 void
 320 Bot::run()
 321 {
 322   nextServer();
 323
 324   while (!stop)
 325     {
 326       waitForInput();  // This is the main event loop
 327       dccConnections->checkStale ();
 328
 329       if (!serverConnection->queue->flush())
 330         {
 331           // Disconnected
 332 #ifdef USESCRIPTS
 333           // Run hooks/disconnected
 334           this->botInterp->RunHooks
 335             (Hook::DISCONNECT,
 336              serverConnection->server->getHostName (),
 337              scm_list_n
 338              (Utils::str2scm  (serverConnection->server->getHostName ())));
 339 #endif
 340           nextServer();
 341         }
 342     }
 343 }
 344
 345 void
 346 Bot::waitForInput()
 347 {
 348 #ifdef _HPUX_SOURCE
 349   int rd;
 350 #else
 351   fd_set rd;
 352 #endif
 353   struct timeval timer;
 354
 355   int sock = serverConnection->getFileDescriptor();
 356   int maxSocketNumber = sock;
 357
 358 #ifdef _HPUX_SOURCE
 359   rd = sock;
 360 #else
 361   FD_ZERO(&rd);
 362   FD_SET(sock, &rd);
 363 #endif
 364
 365   DCC_MAP* dccmap = &dccConnections->dcc_map;
 366   for (DCC_MAP::iterator it = dccmap->begin ();
 367        it != dccmap->end(); ++it) {
 368     int s = it->second->dcc->getFileDescriptor();
 369 #ifdef _HPUX_SOURCE
 370     rd |= s;
 371 #else
 372     FD_SET(s, &rd);
 373 #endif
 374     if (s > maxSocketNumber)
 375       maxSocketNumber = s;
 376   }
 377
 378   timer.tv_sec = 1;
 379   timer.tv_usec = 0;
 380
 381   switch (select(maxSocketNumber + 1, &rd, NULL, NULL, &timer)) {
 382   case 0: /* timeout */
 383     break;
 384   case -1: /* error */
 385     break;
 386   default: /* normal */
 387 #ifdef _HPUX_SOURCE
 388     if (rd & sock)
 389 #else
 390     if (FD_ISSET(sock, &rd))
 391 #endif
 392       if (serverConnection->handleInput())
 393         nextServer();
 394
 395     dccConnections->checkInput (rd);
 396   }
 397
 398   if (currentTime < std::time(0)) { // Actions that we do each second
 399     currentTime = std::time(0);
 400     for (std::map<String, unsigned int, std::less<String> >::iterator
 401            it = ignoredUserhosts.begin();
 402          it != ignoredUserhosts.end(); ++it)
 403       if ((*it).second > 0)
 404         (*it).second--;
 405
 406     String line;
 407     while ((line = todoList->getNext()) != "") {
 408       serverConnection->queue->sendChannelMode(line);
 409     }
 410 #ifdef USESCRIPTS
 411     botInterp->RunTimers(currentTime);
 412
 413     tm *thisTime = localtime(&currentTime);
 414     if (thisTime->tm_sec == 0)
 415       {
 416         char s[6];
 417         std::snprintf(s, 6, "%02d:%02d", thisTime->tm_hour, thisTime->tm_min);
 418
 419         botInterp->RunHooks(Hook::TIMER, String(s),
 420                             scm_list_n (Utils::str2scm (std::string (s)),
 421                                         SCM_UNDEFINED));
 422       }
 423 #endif
 424
 425   }
 426
 427   if (currentTime >= (time_t)(lastNickNameChange + Bot::NICK_CHANGE) &&
 428       nickName != wantedNickName) {
 429     lastNickNameChange = currentTime;
 430     serverConnection->queue->sendNick(wantedNickName);
 431   }
 432
 433   if (currentTime >= (std::time_t)(lastChannelJoin + Bot::CHANNEL_JOIN)) {
 434     lastChannelJoin = currentTime;
 435     for (std::map<String, wantedChannel *, std::less<String> >::iterator it =
 436            wantedChannels.begin(); it != wantedChannels.end();
 437          ++it)
 438       if (channelList->getChannel((*it).first) == 0)
 439          serverConnection->queue->sendJoin((*it).first, (*it).second->key);
 440   }
 441
 442   if (currentTime >= (std::time_t)(serverConnection->serverLastSpoken
 443                                    + Bot::PING_TIME) && !sentPing)
 444     {
 445       serverConnection->queue->sendPing("Testing connection");
 446       sentPing = true;
 447     }
 448
 449   if (currentTime >= (std::time_t)(serverConnection->serverLastSpoken
 450                                    + Bot::TIMEOUT))
 451     {
 452       sentPing = false;
 453       nextServer();
 454     }
 455 }
 456
 457 // We can change server if we will not lose op on a channel
 458 bool
 459 Bot::canChangeServer()
 460 {
 461   String channel;
 462   Channel *c;
 463
 464   for (std::map<String, Channel *, std::less<String> >::iterator it =
 465          channelList->begin();
 466        it != channelList->end(); ++it) {
 467     channel = (*it).first;
 468     c = channelList->getChannel(channel);
 469     if (c->countOp == 1 &&
 470         c->count > 1 && this->iAmOp(channel))
 471       return false;
 472   }
 473   return true;
 474 }
 475
 476 void
 477 Bot::nextServer()
 478 {
 479   bool cont = false;
 480
 481   if (channelList)
 482     channelList->clear();
 483
 484   if (serverConnection)
 485     userList->removeFirst();
 486
 487   delete serverConnection;
 488
 489   do {
 490     Server * s = serverList->nextServer();
 491     if (!s) {
 492       std::cout << "No server found. Exiting..." << std::endl;
 493       std::exit(1);
 494     }
 495     serverConnection = new ServerConnection(this, s, localIP);
 496     if (!serverConnection->connect()) {
 497       cont = true;
 498       // We sleep 10 seconds, to avoid connection flood
 499       sleep(10);
 500       delete serverConnection;
 501     } else {
 502       cont = false;
 503     }
 504   } while (cont);
 505 }
 506
 507 void
 508 Bot::reconnect()
 509 {
 510   if (channelList)
 511     channelList->clear();
 512
 513   userList->removeFirst();
 514
 515   delete serverConnection;
 516
 517   serverConnection =
 518     new ServerConnection(this, serverList->currentServer(), localIP);
 519
 520   serverConnection->connect();
 521 }
 522
 523 void
 524 Bot::connect(int serverNumber)
 525 {
 526   if (channelList)
 527     channelList->clear();
 528
 529   userList->removeFirst();
 530
 531   delete serverConnection;
 532
 533   serverConnection =
 534     new ServerConnection(this, serverList->get(serverNumber), localIP);
 535
 536   serverConnection->connect();
 537 }
 538
 539 void
 540 Bot::addDCC(Person * from, unsigned long address, int port, int type)
 541 {
 542   DCCConnection *d = 0;
 543
 544   if (type == CHAT)
 545     {
 546       d = new DCCChatConnection(this, from->getAddress (),
 547                                 address, port);
 548     }
 549   else
 550     {
 551       return;
 552     }
 553
 554   if (!d->connect())
 555     {
 556       logLine ("DCC Connection failed from " + from->getAddress ());
 557       return;
 558     }
 559
 560   logLine ("DCC CHAT accepted from" + from->getAddress ());
 561   dccConnections->addConnection (d);
 562 }
 563
 564 void
 565 Bot::rehash()
 566 {
 567   for (std::map<String, Channel *, std::less<String> >::iterator it =
 568          channelList->begin();
 569        it != channelList->end(); ++it)
 570     serverConnection->queue->sendWho((*it).first);
 571 }
 572
 573 String
 574 Bot::getUserhost(String channel, String nick)
 575 {
 576   Channel *c;
 577
 578   if (channel == "")
 579     c = 0;
 580   else
 581     c = channelList->getChannel(channel);
 582
 583   nick = nick.toLower();
 584
 585
 586   if (c && c->hasNick(nick))
 587     return c->getUser(nick)->userhost;
 588
 589   unsigned long num = sentUserhostID++;
 590
 591   serverConnection->queue->sendUserhost(nick);
 592   userhostMap[num] = "+";
 593
 594   while (userhostMap[num] == "+") {
 595     waitForInput();
 596     serverConnection->queue->flush();
 597   }
 598
 599   // We have got our answer
 600   String res = userhostMap[num];
 601   userhostMap.erase(num);
 602
 603   return res;
 604 }
 605
 606 bool
 607 Bot::iAmOp(String channel)
 608 {
 609   User * me = channelList->getChannel(channel)->getUser(nickName);
 610   return (me->mode & User::OP_MODE);
 611 }
 612
 613 void
 614 Bot::init_user_functions ()
 615 {
 616     // User Functions
 617 #define uf(f, l, b) new userFunction (f, l, b);
 618   userFunctions["ACTION"] = uf (UserCommands::Action, User::USER, true);
 619   userFunctions["ADDUSER"] = uf (UserCommands::AddUser, User::FRIEND, false);
 620   userFunctions["ADDSERVER"] = uf (UserCommands::AddServer, User::FRIEND,
 621                                     false);
 622   userFunctions["ADDSHIT"] = uf (UserCommands::AddShit, User::FRIEND, false);
 623   userFunctions["ALIAS"] = uf (UserCommands::Alias, User::MASTER, false);
 624   userFunctions["BAN"] = uf (UserCommands::Ban, User::USER, true);
 625   userFunctions["BANLIST"] = uf (UserCommands::BanList, User::USER, true);
 626   userFunctions["CHANNELS"] =
 627     uf (UserCommands::Channels, User::FRIEND, false);
 628   userFunctions["CYCLE"] = uf (UserCommands::Cycle, User::FRIEND, true);
 629   userFunctions["DCCLIST"] = uf (UserCommands::DCCList, User::FRIEND, false);
 630   userFunctions["DEBAN"] = uf (UserCommands::Deban, User::USER, true);
 631   userFunctions["DELSERVER"] = uf (UserCommands::DelServer, User::FRIEND,
 632                                     false);
 633   userFunctions["DELUSER"] = uf (UserCommands::DelUser, User::FRIEND, false);
 634   userFunctions["DELSHIT"] = uf (UserCommands::DelShit, User::FRIEND, false);
 635   userFunctions["DEOP"] = uf (UserCommands::Deop, User::TRUSTED_USER, true);
 636   userFunctions["DIE"] = uf (UserCommands::Die, User::MASTER, false);
 637   userFunctions["DO"] = uf (UserCommands::Do, User::MASTER, false);
 638 #ifdef USESCRIPTS
 639   userFunctions["EXECUTE"] = uf (UserCommands::Execute, User::MASTER, false);
 640 #endif
 641   userFunctions["HELP"] = uf (UserCommands::Help, User::NONE, false);
 642   userFunctions["IDENT"] = uf (UserCommands::Ident, User::NONE, true);
 643   userFunctions["INVITE"] = uf (UserCommands::Invite, User::USER, true);
 644   userFunctions["JOIN"] = uf (UserCommands::Join, User::FRIEND, false);
 645   userFunctions["KEEP"] = uf (UserCommands::Keep, User::FRIEND, true);
 646   userFunctions["KICK"] = uf (UserCommands::Kick, User::USER, true);
 647   userFunctions["KICKBAN"] = uf (UserCommands::KickBan, User::USER, true);
 648   userFunctions["LOAD"] = uf (UserCommands::Load, User::FRIEND, false);
 649 #ifdef USESCRIPTS
 650   userFunctions["LOADSCRIPT"] = uf (UserCommands::LoadScript, User::MASTER,
 651                                      false);
 652 #endif
 653   userFunctions["LOCK"] = uf (UserCommands::Lock, User::FRIEND, true);
 654   userFunctions["MODE"] = uf (UserCommands::Mode, User::FRIEND, true);
 655   userFunctions["MSG"] = uf (UserCommands::Msg, User::USER, false);
 656   userFunctions["NAMES"] = uf (UserCommands::Names, User::USER, true);
 657   userFunctions["NEXTSERVER"] = uf (UserCommands::NextServer, User::FRIEND,
 658                                      false);
 659   userFunctions["NICK"] = uf (UserCommands::Nick, User::FRIEND, false);
 660   userFunctions["NSLOOKUP"] = uf (UserCommands::NsLookup, User::USER, false);
 661   userFunctions["OP"] = uf (UserCommands::Op, User::TRUSTED_USER, true);
 662   userFunctions["PART"] = uf (UserCommands::Part, User::FRIEND, true);
 663   userFunctions["PASSWORD"] = uf (UserCommands::Password, User::USER, true);
 664   userFunctions["RECONNECT"] =
 665     uf (UserCommands::Reconnect, User::FRIEND, false);
 666   userFunctions["RSPYMESSAGE"] =
 667     uf (UserCommands::RSpyMessage, User::USER, false);
 668   userFunctions["SAVE"] = uf (UserCommands::Save, User::FRIEND, false);
 669   userFunctions["SAY"] = uf (UserCommands::Say, User::USER, true);
 670   userFunctions["SERVER"] = uf (UserCommands::Server, User::FRIEND, false);
 671   userFunctions["SERVERLIST"] =
 672     uf (UserCommands::ServerList, User::FRIEND, false);
 673   userFunctions["SETFLOODRATE"] =
 674     uf (UserCommands::SetFloodRate, User::MASTER, false);
 675   userFunctions["SETVERSION"] =
 676     uf (UserCommands::SetVersion, User::MASTER, false);
 677   userFunctions["SHITLIST"] =
 678     uf (UserCommands::ShitList, User::FRIEND, false);
 679   userFunctions["SPYLIST"] = uf (UserCommands::SpyList, User::USER, false);
 680   userFunctions["SPYMESSAGE"] =
 681     uf (UserCommands::SpyMessage, User::USER, false);
 682   userFunctions["STATS"] = uf (UserCommands::Stats, User::FRIEND, true);
 683   userFunctions["TBAN"] = uf (UserCommands::TBan, User::USER, true);
 684   userFunctions["TKBAN"] = uf (UserCommands::TKBan, User::USER, true);
 685   userFunctions["TOPIC"] = uf (UserCommands::Topic, User::USER, true);
 686   userFunctions["UNLOCK"] = uf (UserCommands::Unlock, User::FRIEND, true);
 687   userFunctions["USERLIST"] =
 688     uf (UserCommands::UserList, User::FRIEND, false);
 689   userFunctions["WHO"] = uf (UserCommands::Who, User::NONE, true);
 690   userFunctions["WHOIS"] = uf (UserCommands::Whois, User::FRIEND, true);
 691 #undef uf
 692 }
 693
 694 namespace
 695 {
 696   void erase_userf (std::pair<std::string, class userFunction*> it)
 697   {
 698     delete it.second;
 699   }
 700 }
 701
 702 void
 703 Bot::destroy_user_functions ()
 704 {
 705   std::for_each (userFunctions.begin (),
 706             userFunctions.end (),
 707             erase_userf);
 708   userFunctions.erase (userFunctions.begin (),
 709                        userFunctions.end ());
 710 }
 711
 712 void
 713 Bot::set_log_file (String name)
 714 {
 715   logFileName = name;
 716   logFile.close ();
 717   logFile.clear ();
 718 #if HAVE_IOSBASE
 719   logFile.open(logs_dir + logFileName, std::ios_base::out |
 720                std::ios_base::ate | std::ios_base::app);
 721 #else
 722   logFile.open(logs_dir + logFileName, ios::out | ios::ate
 723               | ios::app);
 724 #endif
 725
 726   logLine("Starting log.");
 727 }
 728
 729 void
 730 Bot::set_log_dir (String dir)
 731 {
 732   logs_dir = dir;
 733 }