Uplink/Uplink.class.php

   1 <?php
   2 /******************************* PHP-P10 v2 *****************************
   3  * Copyright (C) 2011  Philipp Kreil (pk910)                            *
   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 3 of the License, or    *
   8  * (at your option) 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, see <http://www.gnu.org/licenses/>. *
  17  *                                                                      *
  18  ************************************************************************
  19  *
  20  *  Uplink/Uplink.class.php
  21  *
  22  * This file contains the basic P10 Protocol handler.
  23  *
  24  */
  25 require_once("Client.class.php");
  26 require_once("Numerics.class.php");
  27 require_once("P10Formatter.class.php");
  28 require_once("P10_Server.class.php");
  29 require_once("P10_User.class.php");
  30 require_once("P10_Channel.class.php");
  31 require_once("P10_ModeSets.class.php");
  32 require_once("EventHandler.interface.php");
  33 require_once("IPAddr.class.php");
  34
  35 $e=1;
  36 define("ERR_NICK_IN_USE", $e++);
  37 define("ERR_INVALID_USER", $e++);
  38 define("ERR_INVALID_CHANNAME", $e++);
  39 define("ERR_NOT_CONNECTED", $e++);
  40 define("ERR_NOT_ON_CHANNEL", $e++);
  41
  42 class Uplink {
  43         private $client;
  44         private $settings = array();
  45         private $server;
  46         private $eventHandler = null;
  47         private $last_local_numeric = 0;
  48
  49         const FLAG_P10SESSION      = 0x0001; //connection is in P10 mode (server is connected)
  50         const FLAG_SECURITY_QUIT   = 0x0002; //local connection abort because of security issues
  51         const FLAG_NOT_CONNECTABLE = 0x0004; //remote server is not connectable
  52         const FLAG_BURST_PENDING   = 0x0008; //we still have to burst
  53         const FLAG_CONNECTED       = 0x0010; //connected and synced (ready)
  54         const FLAG_GOT_PASS        = 0x0020; //got PASS from the remote Server
  55         private $flags = 0;
  56
  57         public function __construct() {
  58                 $this->client = new Client();
  59                 $this->setSetting("recv_timeout", 1000);
  60                 $this->setSetting("his_usermask", "user.NoMask");
  61         }
  62
  63         public function initialize() {
  64                 if($this->server) {
  65                         trigger_error("Uplink already initialized.", E_USER_ERROR);
  66                         return;
  67                 }
  68                 $self_numeric = $this->getSetting("numeric");
  69                 $self_name = $this->getSetting("name");
  70                 $self_description = $this->getSetting("description");
  71                 if(!$self_numeric || !$self_name) {
  72                         trigger_error("Server Settings missing.", E_USER_ERROR);
  73                         return;
  74                 }
  75                 $this->server = new P10_Server($self_name, $self_numeric, null, time(), time(), $self_description);
  76         }
  77
  78         public function loop() {
  79                 if($this->server == null) {
  80                         trigger_error("Uplink not initialized.", E_USER_ERROR);
  81                         return;
  82                 }
  83                 if(!$this->client->connected()) {
  84                         if(($this->flags & self::FLAG_P10SESSION)) {
  85                                 //Server got disconnected
  86                                 $this->server->disconnectServer($this->eventHandler, true);
  87                                 $this->flags &= ~self::FLAG_P10SESSION;
  88                         }
  89                         $host = $this->getSetting("host");
  90                         $port = $this->getSetting("port");
  91                         if($host == null || $port == null) {
  92                                 trigger_error("Uplink Settings missing.", E_USER_ERROR);
  93                                 return;
  94                         }
  95                         if(($this->flags & self::FLAG_SECURITY_QUIT) || ($this->flags & self::FLAG_NOT_CONNECTABLE)) {
  96                                 sleep(1);
  97                         }
  98                         $state = $this->client->connect($host, $port, $this->getSetting("bind"), $this->getSetting("ssl"), $this->getSetting("recv_timeout"));
  99                         if(!$state) {
 100                                 usleep($this->getSetting("recv_timeout") / 1000);
 101                                 $this->flags |= self::FLAG_NOT_CONNECTABLE;
 102                                 return;
 103                         }
 104                         $this->flags = 0;
 105                         $this->loginServer();
 106                 }
 107                 //try to receive new data from the Uplink
 108                 $lines = $this->client->recv();
 109                 if($lines == null) return;
 110                 foreach($lines as $line) {
 111                         $this->parseLine($line);
 112                 }
 113         }
 114
 115         public function shutdown() {
 116                 if($this->client->connected()) {
 117                         if(($this->flags & self::FLAG_P10SESSION)) {
 118                                 $this->send("SQ", "Shutdown requested.");
 119                         }
 120                         $this->client->disconnect();
 121                 }
 122         }
 123
 124         public function setUplinkHost($host, $port, $ssl = false, $bind = null) {
 125                 $this->setSetting("host", $host);
 126                 $this->setSetting("port", $port);
 127                 $this->setSetting("ssl", $ssl);
 128                 $this->setSetting("bind", $bind);
 129         }
 130
 131         public function setLoopTimeout($timeout) {
 132                 $this->setSetting("recv_timeout", $timeout);
 133         }
 134
 135         public function setUplinkServer($numeric, $name, $password, $description) {
 136                 $this->setSetting("numeric", Numerics::intToNum($numeric, 2));
 137                 $this->setSetting("name", $name);
 138                 $this->setSetting("password", $password);
 139                 $this->setSetting("description", $description);
 140         }
 141
 142         public function setValidateServer($name, $password) {
 143                 $this->setSetting("their_name", $name);
 144                 $this->setSetting("their_password", $password);
 145         }
 146
 147         public function setHISOptions($servername, $serverdesc, $usermask) {
 148                 $this->setSetting("his_name", $servername);
 149                 $this->setSetting("his_desc", $serverdesc);
 150                 $this->setSetting("his_usermask", $usermask);
 151         }
 152
 153         public function setEventHandler($event_handler) {
 154                 if(!is_a($event_handler, "EventHandler")) {
 155                         trigger_error((is_object($event_handler) ? get_class($event_handler) : gettype($event_handler))." is NOT a valid EventHandler.", E_USER_ERROR);
 156                         return;
 157                 }
 158                 $this->eventHandler = $event_handler;
 159         }
 160
 161         private function setSetting($setting, $value) {
 162                 $this->settings[$setting] = $value;
 163         }
 164
 165         private function getSetting($setting) {
 166                 if(array_key_exists($setting, $this->settings)) {
 167                         return $this->settings[$setting];
 168                 } else {
 169                         return null;
 170                 }
 171         }
 172
 173         private function loginServer() {
 174                 $password = $this->getSetting("password");
 175                 $this->send("PASS", $password);
 176                 $this->send("SERVER", $this->server->getName(), $this->server->getStartTime(), $this->server->getLinkTime(), $this->server->getNumeric(), $this->server->getDescription());
 177         }
 178
 179         private function parseLine($line) {
 180                 $highExplode = explode(" :", $line, 2);
 181                 $tokens = explode(" ", $highExplode[0]);
 182                 if(count($highExplode) > 1)
 183                         $tokens[] = $highExplode[1];
 184                 $cmdPos = (($this->flags & self::FLAG_P10SESSION) ? 1 : 0);
 185                 if($cmdPos == 1) $from = $tokens[0];
 186                 else $from = null;
 187                 $arguments = array_slice($tokens, $cmdPos + 1);
 188                 if(($this->flags & self::FLAG_P10SESSION) && $this->eventHandler) {
 189                         $this->eventHandler->event_preparse($from, strtoupper($tokens[$cmdPos]), $arguments);
 190                 }
 191                 switch(strtoupper($tokens[$cmdPos])) {
 192                 //pre P10 Session
 193                         case "PASS":
 194                                 $this->recv_pass($from, $arguments);
 195                                 break;
 196                         case "SERVER":
 197                                 $this->recv_server($from, $arguments);
 198                                 break;
 199                         case "ERROR":
 200                                 $this->recv_error($from, $arguments);
 201                                 break;
 202                 //P10 Session
 203                         case "S":
 204                                 $this->recv_server($from, $arguments);
 205                                 break;
 206                         case "G":
 207                                 $this->recv_ping($from, $arguments);
 208                                 break;
 209                         case "N":
 210                                 $this->recv_nick($from, $arguments);
 211                                 break;
 212                         case "EB":
 213                                 $this->recv_end_of_burst($from, $arguments);
 214                                 break;
 215                         case "EA":
 216                                 $this->recv_end_of_burst_ack($from, $arguments);
 217                                 break;
 218                         case "SQ":
 219                                 $this->recv_server_quit($from, $arguments);
 220                                 break;
 221                         case "Q":
 222                                 $this->recv_quit($from, $arguments);
 223                                 break;
 224                         case "B":
 225                                 $this->recv_burst($from, $arguments);
 226                                 break;
 227                         case "J":
 228                         case "C":
 229                                 $this->recv_join($from, $arguments);
 230                                 break;
 231                         case "L":
 232                                 $this->recv_part($from, $arguments);
 233                                 break;
 234                         case "K":
 235                                 $this->recv_kick($from, $arguments);
 236                                 break;
 237                         case "D":
 238                                 $this->recv_kill($from, $arguments);
 239                                 break;
 240                         case "P":
 241                                 $this->recv_privmsg($from, $arguments);
 242                                 break;
 243                         case "O":
 244                                 $this->recv_notice($from, $arguments);
 245                                 break;
 246                         case "W":
 247                                 $this->recv_whois($from, $arguments);
 248                                 break;
 249                         case "A":
 250                                 $this->recv_away($from, $arguments);
 251                                 break;
 252                         case "M":
 253                         case "OM":
 254                                 $this->recv_mode($from, $arguments);
 255                                 break;
 256                 //default
 257                         default:
 258                                 //unknown cmd
 259                                 if($this->eventHandler)
 260                                         $this->eventHandler->event_unknown_cmd($from, strtoupper($tokens[$cmdPos]), $arguments);
 261                                 break;
 262                 }
 263         }
 264
 265         private function send($command) {
 266                 if(func_num_args() > 1) {
 267                         $args = array_slice(func_get_args(), 1);
 268                         $command = P10Formatter::formatCMD($this->getSetting("numeric"), $command, $args);
 269                 } else {
 270                         $command = P10Formatter::formatCMD($this->getSetting("numeric"), $command, array());
 271                 }
 272                 $this->client->send($command);
 273         }
 274
 275         /********************************************************************************************
 276          *                                     INCOMING COMMANDS                                    *
 277          ********************************************************************************************/
 278
 279         private function recv_pass($from, $args) {
 280                 $their_pass = $this->getSetting("their_password");
 281                 if($their_pass) {
 282                         if($args[0] != $their_pass) {
 283                                 //security QUIT
 284                                 $this->flags |= self::FLAG_SECURITY_QUIT;
 285                                 $this->send("ERROR", "Incorrect password received.");
 286                                 $this->client->disconnect();
 287                                 return;
 288                         }
 289                         $this->flags |= self::FLAG_GOT_PASS;
 290                 }
 291         }
 292
 293         private function recv_error($from, $args) {
 294                 //we received an error - the socket is dead for us, now
 295                 //maybe we want to log this, later
 296                 $this->client->disconnect();
 297         }
 298
 299         private function recv_server($from, $args) {
 300                 if($from == null) {
 301                         //our uplink Server
 302                         $their_name = $this->getSetting("their_name");
 303                         if($their_name && $args[0] != $their_name) {
 304                                 $this->flags |= self::FLAG_SECURITY_QUIT;
 305                                 $this->send("ERROR", "Invalid Server name");
 306                                 $this->client->disconnect();
 307                                 return;
 308                         }
 309                         if($this->getSetting("their_password") && !($this->flags & self::FLAG_GOT_PASS)) {
 310                                 $this->flags |= self::FLAG_SECURITY_QUIT;
 311                                 $this->send("ERROR", "PASS missing.");
 312                                 $this->client->disconnect();
 313                                 return;
 314                         }
 315                         $new_server = new P10_Server($args[0], substr($args[5],0,2), $this->server, $args[2], $args[3], $args[7]);
 316                         $this->server->addServer($new_server);
 317                         $this->flags |= self::FLAG_P10SESSION | self::FLAG_BURST_PENDING;
 318                         if($this->eventHandler)
 319                                 $this->eventHandler->event_newserver($new_server, !($this->flags & self::FLAG_CONNECTED));
 320                 } else {
 321                         //another server got a new slave server ^^
 322                         $server = P10_Server::getServerByNum($from);
 323                         if($server == null) {
 324                                 trigger_error("Parent Server (".$from.") does not exist or was not found on recv_server.", E_USER_ERROR);
 325                                 return;
 326                         }
 327                         $new_server = new P10_Server($args[0], substr($args[5],0,2), $server, $args[2], $args[3], $args[7]);
 328                         $server->addServer($new_server);
 329                         if($this->eventHandler)
 330                                 $this->eventHandler->event_newserver($new_server, !($this->flags & self::FLAG_CONNECTED));
 331                 }
 332         }
 333
 334         private function recv_ping($from, $args) {
 335                 $this->send("Z", $args[0]); //simply PONG
 336                 P10_Channel::recheckAllChannels();
 337         }
 338
 339         private function recv_nick($from, $args) {
 340                 if(count($args) <= 2) {
 341                         //Nick change
 342                         $user = P10_User::getUserByNum($from);
 343                         if($user == null) {
 344                                 trigger_error("Server tries to change the nick of an user that does not exist or was not found on recv_nick.", E_USER_ERROR);
 345                                 return;
 346                         }
 347                         if($this->eventHandler)
 348                                 $this->eventHandler->event_nick($user, $args[0]);
 349                         $user->setNick($args[0]);
 350                 } else {
 351                         //New User
 352                         $numeric = $args[count($args)-2];
 353                         $nick = $args[0];
 354                         $server = P10_Server::getServerByNum($from);
 355                         if($server == null) {
 356                                 trigger_error("Server (".$from.") the User (".$nick.") is coming from does not exist or was not found on recv_nick.", E_USER_ERROR);
 357                                 return;
 358                         }
 359                         if(substr($numeric,0,2) != $from) {
 360                                 trigger_error("A Server (".$from.") tries to connect a User with an invalid User numeric ('".$numeric."' does not belong to the Server)", E_USER_WARNING);
 361                         }
 362                         $connect_time = $args[2];
 363                         $ident = $args[3];
 364                         $host = $args[4];
 365                         $modes = implode(" ",array_slice($args, 5, count($args)-8));
 366                         $modes = new P10_UserModeSet($modes);
 367                         $ip = new IPAddr($args[count($args)-3]);
 368                         $realname = $args[count($args)-1];
 369                         $user = new P10_User($nick, $numeric, $server, $connect_time, $ident, $host, $ip, $realname, $modes);
 370                         if($this->eventHandler)
 371                                 $this->eventHandler->event_connect($user, !($this->flags & self::FLAG_CONNECTED));
 372                 }
 373         }
 374
 375         private function recv_end_of_burst($from, $args) {
 376                 if(($this->flags & self::FLAG_BURST_PENDING)) {
 377                         $this->burst();
 378                         $this->send("EA");
 379                         $this->flags &= ~self::FLAG_BURST_PENDING;
 380                 }
 381         }
 382
 383         private function recv_end_of_burst_ack($from, $args) {
 384                 $this->flags |= self::FLAG_CONNECTED;
 385         }
 386
 387         private function recv_server_quit($from, $args) {
 388                 $server = P10_Server::getServerByName($args[0]);
 389                 if($server == null) {
 390                         trigger_error("Server (".$args[0].") not found.", E_USER_ERROR);
 391                         return;
 392                 }
 393                 $server->disconnectServer($this->eventHandler);
 394         }
 395
 396         private function recv_quit($from, $args) {
 397                 $user = P10_User::getUserByNum($from);
 398                 if($user == null) {
 399                         trigger_error("Server tries to quit an user that does not exist or was not found on recv_quit.", E_USER_ERROR);
 400                         return;
 401                 }
 402                 if($this->eventHandler)
 403                         $this->eventHandler->event_quit($user, $args[0]);
 404                 $user->quit($args[0]);
 405         }
 406
 407         private function recv_burst($from, $args) {
 408                 $name = $args[0];
 409                 $create_time = $args[1];
 410         if(count($args) == 2) {
 411             //we've got an empty channel without any modes set???  dead channel!
 412             return;
 413         }
 414                 $channel = P10_Channel::getChannelByName($name);
 415                 if($channel == null)
 416                         $channel = new P10_Channel($name);
 417                 $channel->setCreateTime($create_time);
 418                 $modes = $channel->getModes();
 419                 $userstr = $args[count($args)-1];
 420                 $modeparamcount = count($args)-3;
 421                 if($userstr[0] == "%") {
 422                         //ban list
 423                         $banlist = explode(" ", substr($userstr, 1));
 424                         foreach($banlist as $ban) {
 425                                 //TODO: save bans
 426                         }
 427                         $userstr = $args[count($args)-2];
 428                         $modeparamcount--;
 429                 }
 430                 if($userstr[0] == "+") { //MODE String
 431                         $modeparamcount++;
 432                         $userstr = "";
 433                 }
 434                 $users = explode(",",$userstr);
 435                 $isop = false; $isvoice = false;
 436                 foreach($users as $user) {
 437                         if($user == "") continue;
 438                         $uexp = explode(":", $user);
 439                         if(strlen($uexp[0]) != 5) {
 440                                 trigger_error("burst parse error: '".$uexp[0]."' is not an user numeric.", E_USER_ERROR);
 441                                 return;
 442                         }
 443                         if(count($uexp) > 1) {
 444                                 $isop = false;
 445                                 $isvoice = false;
 446                                 for($i = 0; $i < strlen($uexp[1]); $i++) {
 447                                         if($uexp[1][0] == "@") $isop = true;
 448                                         if($uexp[1][0] == "+") $isvoice = true;
 449                                 }
 450                         }
 451                         $user = P10_User::getUserByNum($uexp[0]);
 452                         if($user == null) {
 453                                 trigger_error("burst parse error: cant find User '".$uexp[0]."'.", E_USER_ERROR);
 454                                 return;
 455                         }
 456                         $channel->burstUser($user, $isop, $isvoice);
 457                         if($this->eventHandler)
 458                                 $this->eventHandler->event_join($user, $channel, true);
 459                 }
 460                 $modes->parseModes(implode(" ", array_slice($args, 2, $modeparamcount)));
 461         }
 462
 463         private function recv_join($from, $args) {
 464                 $user = P10_User::getUserByNum($from);
 465                 if($user == null) {
 466                         trigger_error("Server tries to join an user that does not exist or was not found on recv_join.", E_USER_ERROR);
 467                         return;
 468                 }
 469                 $channel = P10_Channel::getChannelByName($args[0]);
 470                 if($channel == null)
 471                         $channel = new P10_Channel($args[0]);
 472                 $channel->joinUser($user);
 473                 if($this->eventHandler)
 474                         $this->eventHandler->event_join($user, $channel, false);
 475         }
 476
 477         private function recv_part($from, $args) {
 478                 $user = P10_User::getUserByNum($from);
 479                 if($user == null) {
 480                         trigger_error("Server tries to part an user that does not exist or was not found on recv_join.", E_USER_ERROR);
 481                         return;
 482                 }
 483                 $channel = P10_Channel::getChannelByName($args[0]);
 484                 if($channel == null)
 485                         $channel = new P10_Channel($args[0]);
 486                 if($this->eventHandler)
 487                         $this->eventHandler->event_part($user, $channel, $args[1]);
 488                 $channel->partUser($user);
 489         }
 490
 491         private function recv_kick($from, $args) {
 492                 $user = P10_User::getUserByNum($from);
 493                 if($user == null) {
 494                         trigger_error("An unknown user tries to kick another user on recv_kick.", E_USER_ERROR);
 495                         return;
 496                 }
 497                 $channel = P10_Channel::getChannelByName($args[0]);
 498                 if($channel == null)
 499                         $channel = new P10_Channel($args[0]);
 500                 $target = P10_User::getUserByNum($args[1]);
 501                 if($target == null) {
 502                         trigger_error("Someone tries to kick an user that does not exist or was not found on recv_kick.", E_USER_ERROR);
 503                         return;
 504                 }
 505                 if($this->eventHandler)
 506                         $this->eventHandler->event_kick($user, $target, $channel, $args[1]);
 507                 $channel->partUser($user);
 508         }
 509
 510         private function recv_kill($from, $args) {
 511                 $user = P10_User::getUserByNum($args[0]);
 512                 if($user == null) {
 513                         trigger_error("Server tries to kill an user that does not exist or was not found on recv_quit.", E_USER_ERROR);
 514                         return;
 515                 }
 516                 if($this->eventHandler)
 517                         $this->eventHandler->event_quit($user, "Killed (".$args[1].")");
 518                 $user->quit($args[1]);
 519         }
 520
 521         private function recv_privmsg($from, $args) {
 522                 $user = P10_User::getUserByNum($from);
 523                 if($user == null) {
 524                         trigger_error("Server tries to send a privmsg from an user that does not exist or was not found on recv_privmsg.", E_USER_WARNING);
 525                         return;
 526                 }
 527                 if($this->eventHandler) {
 528                         if($args[0][0] == "#") {
 529                                 $channel = P10_Channel::getChannelByName($args[0]);
 530                                 if($channel == null)
 531                                         $channel = new P10_Channel($args[0]);
 532                                 if(strlen($args[1]) > 0 && $args[1][0] == "\001") {
 533                                         //ctcp
 534                                         $args[1] = substr($args[1],1);
 535                                         if($args[1][strlen($args[1])-1] == "\001")
 536                                                 $args[1] = substr($args[1],0,-1);
 537                                         $ctcpexp = explode(" ",$args[1],2);
 538                                         $this->eventHandler->event_chanctcp($user, $channel, strtoupper($ctcpexp[0]), (count($ctcpexp) > 1 ? $ctcpexp[1] : null));
 539                                 } else
 540                                         $this->eventHandler->event_chanmessage($user, $channel, $args[1]);
 541                         } else if($args[0][0] == "$") {
 542                                 //"multicast"
 543                                 $this->eventHandler->event_privmessage($user, NULL, $args[1]);
 544                         } else {
 545                                 $targetUser = P10_User::getUserByNum($args[0]);
 546                                 if($targetUser == null) {
 547                                         trigger_error("Server tries to send a privmsg to an user that does not exist or was not found on recv_privmsg.", E_USER_WARNING);
 548                                         return;
 549                                 }
 550                                 if(strlen($args[1]) > 0 && $args[1][0] == "\001") {
 551                                         //ctcp
 552                                         $args[1] = substr($args[1],1);
 553                                         if($args[1][strlen($args[1])-1] == "\001")
 554                                                 $args[1] = substr($args[1],0,-1);
 555                                         $ctcpexp = explode(" ",$args[1],2);
 556                                         $this->eventHandler->event_privctcp($user, $targetUser, strtoupper($ctcpexp[0]), (count($ctcpexp) > 1 ? $ctcpexp[1] : null));
 557                                 } else
 558                                         $this->eventHandler->event_privmessage($user, $targetUser, $args[1]);
 559                         }
 560                 }
 561         }
 562
 563         private function recv_notice($from, $args) {
 564                 $user = P10_User::getUserByNum($from);
 565                 if($user == null) {
 566                         trigger_error("Server tries to send a notice from an user that does not exist or was not found on recv_notice.", E_USER_WARNING);
 567                         return;
 568                 }
 569                 if($this->eventHandler) {
 570                         if($args[0][0] == "#") {
 571                                 $channel = P10_Channel::getChannelByName($args[0]);
 572                                 if($channel == null)
 573                                         $channel = new P10_Channel($args[0]);
 574                                 if(strlen($args[1]) > 0 && $args[1][0] == "\001") {
 575                                         //ctcp
 576                                         $args[1] = substr($args[1],1);
 577                                         if($args[1][strlen($args[1])-1] == "\001")
 578                                                 $args[1] = substr($args[1],0,-1);
 579                                         $ctcpexp = explode(" ",$args[1],2);
 580                                         $this->eventHandler->event_chanctcpreply($user, $channel, strtoupper($ctcpexp[0]), (count($ctcpexp) > 1 ? $ctcpexp[1] : null));
 581                                 } else
 582                                         $this->eventHandler->event_channotice($user, $channel, $args[1]);
 583                         } else if($args[0][0] == "$") {
 584                                 //"multicast"
 585                                 $this->eventHandler->event_privnotice($user, NULL, $args[1]);
 586                         } else {
 587                                 $targetUser = P10_User::getUserByNum($args[0]);
 588                                 if($targetUser == null) {
 589                                         trigger_error("Server tries to send a notice to an user that does not exist or was not found on recv_notice.", E_USER_WARNING);
 590                                         return;
 591                                 }
 592                                 if(strlen($args[1]) > 0 && $args[1][0] == "\001") {
 593                                         //ctcp
 594                                         $args[1] = substr($args[1],1);
 595                                         if($args[1][strlen($args[1])-1] == "\001")
 596                                                 $args[1] = substr($args[1],0,-1);
 597                                         $ctcpexp = explode(" ",$args[1],2);
 598                                         $this->eventHandler->event_privctcpreply($user, $targetUser, strtoupper($ctcpexp[0]), (count($ctcpexp) > 1 ? $ctcpexp[1] : null));
 599                                 } else
 600                                         $this->eventHandler->event_privnotice($user, $targetUser, $args[1]);
 601                         }
 602                 }
 603         }
 604
 605         private function recv_whois($from, $args) {
 606                 /* [get] ACAAF W AX :NetworkServ */
 607                 $fromUser = P10_User::getUserByNum($from);
 608                 if($fromUser == null) {
 609                         trigger_error("Server tries to send a whois from an user that does not exist or was not found on recv_whois.", E_USER_ERROR);
 610                         return;
 611                 }
 612                 $users=explode(",",$args[1]);
 613                 foreach($users as $nick) {
 614                         $user = P10_User::getUserByNick($nick);
 615                         if(!$user) {
 616                                 $this->send("401", $from, $nick);
 617                                 continue;
 618                         }
 619                         $nick = $user->getNick();
 620                         $ident = $user->getIdent();
 621                         $hostmask = $user->getHost();
 622                         $modes = $user->getModes();
 623                         if($modes->hasMode('x')) {
 624                                 if(($fakehost = $modes->hasMode('f'))) {
 625                                         $hostmask = $fakehost;
 626                                 } elseif(($account = $modes->hasMode('r'))) {
 627                                         $hostmask = $account.".".$this->getSetting("his_usermask");
 628                                 }
 629                         }
 630                         $realname = $user->getRealname();
 631                         $this->send("311", $from , $nick, $ident, $hostmask, $realname);
 632                         if(((!$modes->hasMode('n') && !$modes->hasMode('k')) || $from == $user->getNumeric()) && count($user->getChannels()) != 0) {
 633                                 $channels = "";
 634                                 foreach($user->getChannels() as $channel) {
 635                                         $cmodes = $channel->getModes();
 636                                         $privs = $channel->getUserPrivs($user);
 637                                         if($cmodes->hasMode("s") && !$fromUser->isOnChannel($channel) && $from != $user->getNumeric()) continue;
 638                                         if($cmodes->hasMode("u") && ($privs & (P10_Channel::USERPRIV_OPED | P10_Channel::USERPRIV_VOICE)) == 0 && $from != $user->getNumeric()) continue;
 639                                         $chanstr = ($channels == "" ? "" : " ");
 640                                         $prefix = "";
 641                                         if(($privs & P10_Channel::USERPRIV_OPED)) {
 642                                                 $prefix = "@";
 643                                         } else if(($privs & P10_Channel::USERPRIV_VOICE)) {
 644                                                 $prefix = "+";
 645                                         }
 646                                         $chanstr .= $prefix.$channel->getName();
 647                                         if(strlen($channels) + strlen($chanstr) > 450) {
 648                                                 $this->send("319", $from, $nick, $channels);
 649                                                 $channels = $prefix.$channel->getName();
 650                                         }
 651                                 }
 652                                 if($channels != "") {
 653                                         $this->send("319", $from, $nick, $channels);
 654                                 }
 655                         }
 656                         if($fromUser->getModes()->hasMode("o") || $from == $user->getNumeric() || !$this->getSetting("his_name")) {
 657                                 $this->send("312", $from, $nick, $user->getServer()->getName(), $user->getServer()->getDescription());
 658                         } else {
 659                                 $this->send("312", $from, $nick, $this->getSetting("his_name"), $this->getSetting("his_desc"));
 660                         }
 661                         if($modes->hasMode("o") && (!$modes->hasMode("H") || $fromUser->getModes()->hasMode("o"))) {
 662                                 if($modes->hasMode("S")) {
 663                                         if($modes->hasMode("D"))
 664                                                 $this->send("313", $from, $nick, "is a Network Service");
 665                                         else
 666                                                 $this->send("313", $from, $nick, "is an illegal Network Service - HACKER!");
 667                                 } else
 668                                         $this->send("313", $from, $nick, "is an IRC Operator");
 669                         }
 670                         if(($auth = $modes->hasMode("r"))) {
 671                                 $this->send("330", $from, $nick, $auth);
 672                         }
 673                 }
 674                 $this->send("318", $from, $args[1]);
 675         }
 676
 677         private function recv_away($from, $args) {
 678                 $user = P10_User::getUserByNum($from);
 679                 if($user == null) {
 680                         trigger_error("Server tries to send an away command from an user that does not exist or was not found on recv_away.", E_USER_ERROR);
 681                         return;
 682                 }
 683                 if(count($args) > 0) {
 684                         $user->setAway($args[0]);
 685                         if($this->eventHandler)
 686                                 $this->eventHandler->event_away($user, $args[0]);
 687                 } else {
 688                         $user->setAway(null);
 689                         if($this->eventHandler)
 690                                 $this->eventHandler->event_away($user, null);
 691                 }
 692         }
 693
 694         private function recv_mode($from, $args) {
 695                 $user = P10_User::getUserByNum($from);
 696                 if($user == null) {
 697                         trigger_error("Server tries to send a modechange from an user that does not exist or was not found on recv_mode.", E_USER_ERROR);
 698                         return;
 699                 }
 700                 $modes = implode(" ",array_slice($args,1));
 701                 if($args[0][0] == "#") {
 702                         $channel = P10_Channel::getChannelByName($args[0]);
 703                         if($channel == null)
 704                                 $channel = new P10_Channel($args[0]);
 705                         $channel->getModes()->setModes($modes);
 706                         if($this->eventHandler)
 707                                 $this->eventHandler->event_chanmode($user, $channel, $modes);
 708                 } else {
 709                         $targetUser = P10_User::getUserByNick($args[0]);
 710                         if($targetUser == null) {
 711                                 trigger_error("Server tries to send a mode to an user that does not exist or was not found on recv_mode.", E_USER_ERROR);
 712                                 return;
 713                         }
 714                         $targetUser->getModes()->setModes($modes);
 715                         if($this->eventHandler)
 716                                 $this->eventHandler->event_usermode($targetUser, $modes);
 717                 }
 718         }
 719
 720         /********************************************************************************************
 721          *                                     SERVER FUNCTIONS                                     *
 722          ********************************************************************************************/
 723
 724         private function burst() {
 725                 foreach($this->server->getUsers() as $user) {
 726                         $nick = $user->getNick();
 727                         $connect_time = $user->getConnectTime();
 728                         $ident = $user->getIdent();
 729                         $host = $user->getHost();
 730                         $modes = $user->getModes()->getModeString();
 731                         $ip = $user->getIP()->getNumeric();
 732                         $numeric = $user->getNumeric();
 733                         $realname = $user->getRealname();
 734                         $this->send("N", $nick, $connect_time, $ident, $host, $modes, $ip, $numeric, $realname);
 735                 }
 736                 foreach(P10_Channel::getChannels() as $channel) {
 737                         $sorted_users = array('ov' => array(), 'o' => array(), 'v' => array(), '-' => array());
 738                         $local_users = false;
 739                         foreach($channel->getUsers() as $user) {
 740                                 if(substr($user->getNumeric(), 0, 2) != $this->server->getNumeric()) continue; //skip users that are not on the local server
 741                                 $privs = $channel->getUserPrivs($user);
 742                                 $strPrivs = "";
 743                                 if(($privs & P10_Channel::USERPRIV_OPED)) $strPrivs .= "o";
 744                                 if(($privs & P10_Channel::USERPRIV_VOICE)) $strPrivs .= "v";
 745                                 if($strPrivs == "") $strPrivs = "-";
 746                                 $local_users = true;
 747                                 $sorted_users[$strPrivs][] = $user;
 748                         }
 749                         if(!$local_users) continue;
 750                         $userStr = "";
 751                         foreach($sorted_users['-'] as $user) {
 752                                 if($userStr != "") $userStr.=",";
 753                                 $userStr .= $user->getNumeric();
 754                         }
 755                         foreach($sorted_users['ov'] as $i => $user) {
 756                                 if($userStr != "") $userStr.=",";
 757                                 $userStr .= $user->getNumeric();
 758                                 if($i == 0) $userStr .= ":ov";
 759                         }
 760                         foreach($sorted_users['o'] as $i => $user) {
 761                                 if($userStr != "") $userStr.=",";
 762                                 $userStr .= $user->getNumeric();
 763                                 if($i == 0) $userStr .= ":o";
 764                         }
 765                         foreach($sorted_users['v'] as $i => $user) {
 766                                 if($userStr != "") $userStr.=",";
 767                                 $userStr .= $user->getNumeric();
 768                                 if($i == 0) $userStr .= ":v";
 769                         }
 770                         $banString = "";
 771                         //TODO: Build ban String
 772                         $burstString = "";
 773                         $modeString = $channel->getModes()->getModeString();
 774                         if($modeString != "+") {
 775                                 $burstString .= $modeString;
 776                         }
 777                         if($userStr != "") {
 778                                 if($burstString != "") $burstString .= " ";
 779                                 $burstString .= $userStr;
 780                         }
 781                         if($banString != "") {
 782                                 if($burstString != "") $burstString .= " ";
 783                                 $burstString .= ":%".$banString;
 784                         }
 785                         $this->send("B", $channel->getName(), $channel->getCreateTime(), $burstString);
 786                 }
 787                 $this->send("EB");
 788         }
 789
 790         /********************************************************************************************
 791          *                                    LOCAL USER FUNCTIONS                                  *
 792          ********************************************************************************************/
 793
 794         public function addUser($nick, $ident, $host, $ip, $modes, $realname) {
 795                 $user = P10_User::getUserByNick($nick);
 796                 if($user != null) return ERR_NICK_IN_USE;
 797                 $numeric = substr($this->server->getNumeric(),0,2).Numerics::intToNum($this->last_local_numeric, 3);
 798                 while(P10_User::getUserByNum($numeric)) {
 799                         $this->last_local_numeric++;
 800                         $numeric = substr($this->server->getNumeric(),0,2).Numerics::intToNum($this->last_local_numeric, 3);
 801                 }
 802                 $this->last_local_numeric++;
 803                 $modes = new P10_UserModeSet($modes);
 804                 $ip = new IPAddr($ip);
 805                 $user = new P10_User($nick, $numeric, $this->server, time(), $ident, $host, $ip, $realname, $modes);
 806                 if(($this->flags & self::FLAG_CONNECTED)) {
 807                         $ip = $user->getIP()->getNumeric();
 808                         $this->send("N", $nick, $user->getConnectTime(), $ident, $host, $user->getModes()->getModeString(), $ip, $numeric, $realname);
 809                 }
 810                 return $user;
 811         }
 812
 813         public function delUser($user, $reason) {
 814                 if(!is_a($user, "P10_User")) return ERR_INVALID_USER;
 815                 if($user->getServer() === $this->server) {
 816                         //local user (QUIT)
 817                         $user->quit($reason);
 818                         if(($this->flags & self::FLAG_CONNECTED))
 819                                 $this->send("Q", $user->getNumeric(), $reason);
 820                 } else {
 821                         //remote user (KILL)
 822                         if(!($this->flags & self::FLAG_CONNECTED))
 823                                 return ERR_NOT_CONNECTED;
 824                         if($this->eventHandler)
 825                                 $this->eventHandler->event_quit($user, "Killed (".$reason.")");
 826                         $user->quit("Killed (".$reason.")");
 827                         $name = ($this->getSetting('his_name') ? $this->getSetting('his_name') : $this->getSetting('name'));
 828
 829                         $this->send("D", $user->getNumeric(), $name, $reason);
 830                 }
 831         }
 832
 833         public function join($user, $chanName, $privs = 0) {
 834                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 835                         return ERR_INVALID_USER;
 836                 if($chanName[0] != "#")
 837                         return ERR_INVALID_CHANNAME;
 838                 $channel = P10_Channel::getChannelByName($chanName);
 839                 if($channel == null)
 840                         $channel = new P10_Channel($chanName);
 841                 $channel->joinUser($user);
 842                 if(($this->flags & self::FLAG_CONNECTED))
 843                         $this->send("J", $user->getNumeric(), $chanName, time(), 0);
 844                 if($privs != 0) {
 845                         $channel->setUserPrivs($user, $privs);
 846                         if(($this->flags & self::FLAG_CONNECTED)) {
 847                                 $modestr = "+".(($privs & P10_Channel::USERPRIV_OPED) ? "o" : "").(($privs & P10_Channel::USERPRIV_VOICE) ? "v" : "");
 848                                 $modestr .= (($privs & P10_Channel::USERPRIV_OPED) ? " ".$user->getNumeric() : "");
 849                                 $modestr .= (($privs & P10_Channel::USERPRIV_VOICE) ? " ".$user->getNumeric() : "");
 850                                 $this->send("OM", $user->getNumeric(), $chanName, $modestr);
 851                         }
 852                 }
 853                 if($this->eventHandler)
 854                         $this->eventHandler->event_join($user, $channel, false);
 855         }
 856
 857         public function part($user, $chanName, $reason) {
 858                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 859                         return ERR_INVALID_USER;
 860                 if(!((is_string($chanName) && $chanName[0] == "#") || is_a($chanName, "P10_Channel")))
 861                         return ERR_INVALID_CHANNAME;
 862                 if(is_a($chanName, "P10_Channel"))
 863                         $channel = $chanName;
 864                 else
 865                         $channel = P10_Channel::getChannelByName($chanName);
 866                 if($channel == null)
 867                         $channel = new P10_Channel($chanName);
 868                 if(!$user->isOnChannel($channel))
 869                         return ERR_NOT_ON_CHANNEL;
 870                 if($this->eventHandler)
 871                         $this->eventHandler->event_part($user, $channel, $reason);
 872                 $channel->partUser($user, $reason);
 873                 if(($this->flags & self::FLAG_CONNECTED))
 874                         $this->send("L", $user->getNumeric(), $chanName, $reason);
 875         }
 876
 877         public function kick($user, $target, $chanName, $reason) {
 878                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 879                         return ERR_INVALID_USER;
 880                 if(!is_a($target, "P10_User"))
 881                         return ERR_INVALID_USER;
 882                 if(!((is_string($chanName) && $chanName[0] == "#") || is_a($chanName, "P10_Channel")))
 883                         return ERR_INVALID_CHANNAME;
 884                 if(is_a($chanName, "P10_Channel"))
 885                         $channel = $chanName;
 886                 else
 887                         $channel = P10_Channel::getChannelByName($chanName);
 888                 if($channel == null)
 889                         $channel = new P10_Channel($chanName);
 890                 if(!$target->isOnChannel($channel))
 891                         return ERR_NOT_ON_CHANNEL;
 892                 if($this->eventHandler)
 893                         $this->eventHandler->event_kick($user, $target, $channel, $reason);
 894                 $channel->partUser($target, $reason);
 895                 if(($this->flags & self::FLAG_CONNECTED))
 896                         $this->send("K", $user->getNumeric(), $chanName, $target->getNumeric(), $reason);
 897         }
 898
 899         public function privmsg($user, $target, $message) {
 900                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 901                         return ERR_INVALID_USER;
 902                 if(!is_a($target, "P10_User") && !is_a($target, "P10_Channel") && !(is_string($target) && ($target[0] == "#" || P10_User::getUserByNick($target))))
 903                         return ERR_INVALID_USER;
 904                 if(is_a($target, "P10_Channel"))
 905                         $targetStr = $target->getName();
 906                 else if(is_a($target, "P10_User"))
 907                         $targetStr = $target->getNumeric();
 908                 else if($target[0] == "#")
 909                         $targetStr = $target;
 910                 else
 911                         $targetStr = P10_User::getUserByNick($target)->getNumeric();
 912
 913                 if($this->eventHandler) {
 914                         if($targetStr[0] == "#") {
 915                                 $channel = P10_Channel::getChannelByName($targetStr);
 916                                 if($channel == null)
 917                                         $channel = new P10_Channel($targetStr);
 918                                 $this->eventHandler->event_chanmessage($user, $channel, $message);
 919                         } else {
 920                                 $targetUser = P10_User::getUserByNum($targetStr);
 921                                 $this->eventHandler->event_privmessage($user, $targetUser, $message);
 922                         }
 923                 }
 924                 if(($this->flags & self::FLAG_CONNECTED))
 925                         $this->send("P", $user->getNumeric(), $targetStr, $message);
 926         }
 927
 928         public function notice($user, $target, $message) {
 929                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 930                         return ERR_INVALID_USER;
 931                 if(!is_a($target, "P10_User") && !is_a($target, "P10_Channel") && !(is_string($target) && ($target[0] == "#" || P10_User::getUserByNick($target))))
 932                         return ERR_INVALID_USER;
 933                 if(is_a($target, "P10_Channel"))
 934                         $targetStr = $target->getName();
 935                 else if(is_a($target, "P10_User"))
 936                         $targetStr = $target->getNumeric();
 937                 else if($target[0] == "#")
 938                         $targetStr = $target;
 939                 else
 940                         $targetStr = P10_User::getUserByNick($target)->getNumeric();
 941
 942                 if($this->eventHandler) {
 943                         if($targetStr[0] == "#") {
 944                                 $channel = P10_Channel::getChannelByName($targetStr);
 945                                 if($channel == null)
 946                                         $channel = new P10_Channel($targetStr);
 947                                 $this->eventHandler->event_channotice($user, $channel, $message);
 948                         } else {
 949                                 $targetUser = P10_User::getUserByNum($targetStr);
 950                                 $this->eventHandler->event_privnotice($user, $targetUser, $message);
 951                         }
 952                 }
 953                 if(($this->flags & self::FLAG_CONNECTED))
 954                         $this->send("O", $user->getNumeric(), $targetStr, $message);
 955         }
 956
 957         public function mode($user, $target, $modes, $force = false) {
 958                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 959                         return ERR_INVALID_USER;
 960                 if(!is_a($target, "P10_User") && !is_a($target, "P10_Channel") && !(is_string($target) && ($target[0] == "#" || P10_User::getUserByNick($target))))
 961                         return ERR_INVALID_USER;
 962                 if(is_a($target, "P10_Channel"))
 963                         $targetStr = $target->getName();
 964                 else if(is_a($target, "P10_User"))
 965                         $targetStr = $target->getNumeric();
 966                 else if($target[0] == "#")
 967                         $targetStr = $target;
 968                 else
 969                         $targetStr = P10_User::getUserByNick($target)->getNumeric();
 970
 971                 if($targetStr[0] == "#") {
 972                         $channel = P10_Channel::getChannelByName($targetStr);
 973                         if($channel == null)
 974                                 $channel = new P10_Channel($targetStr);
 975                         $modes = $channel->getModes()->setModes($modes, true);
 976                         if(($this->flags & self::FLAG_CONNECTED))
 977                                 $this->send(($force ? "OM" : "M"), $user->getNumeric(), $targetStr, $modes);
 978                         if($this->eventHandler)
 979                                 $this->eventHandler->event_chanmode(($force ? $this->server : $user), $channel, $modes);
 980                 } else {
 981                         $targetUser = P10_User::getUserByNum($targetStr);
 982                         if($targetUser->getServer() === $this->server) {
 983                                 //just do it :D
 984                                 $modes = $targetUser->getModes()->setModes($modes, true);
 985                                 if(($this->flags & self::FLAG_CONNECTED))
 986                                         $this->send("M", $targetUser->getNumeric(), $targetUser->getNick(), $modes);
 987                                 if($this->eventHandler)
 988                                         $this->eventHandler->event_usermode($targetUser, $modes);
 989                         } else {
 990                                 //SVSMODE
 991                                 if(($this->flags & self::FLAG_CONNECTED))
 992                                         $this->send("SM", $user->getNumeric(), $targetUser->getNumeric(), $modes);
 993                         }
 994                 }
 995         }
 996
 997         public function ctcp($user, $target, $command, $text) {
 998                 return $this->privmsg($user, $target, "\001".strtoupper($command)." ".$text."\001");
 999         }
1000
1001         public function ctcp_reply($user, $target, $command, $text) {
1002                 return $this->notice($user, $target, "\001".strtoupper($command)." ".$text."\001");
1003         }
1004
1005 }
1006
1007 ?>