Uplink/Uplink.class.php

   1 <?php
   2 /********************************* PHP-P10 ******************************
   3  *    P10 uplink class by pk910   (c)2011 pk910                         *
   4  ************************************************************************
   5  *                          Version 2 (OOP)                             *
   6  *                                                                      *
   7  * PHP-P10 is free software; you can redistribute it and/or modify      *
   8  * it under the terms of the GNU General Public License as published by *
   9  * the Free Software Foundation; either version 2 of the License, or    *
  10  * (at your option) any later version.                                  *
  11  *                                                                      *
  12  * This program is distributed in the hope that it will be useful,      *
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        *
  15  * GNU General Public License for more details.                         *
  16  *                                                                      *
  17  * You should have received a copy of the GNU General Public License    *
  18  * along with PHP-P10; if not, write to the Free Software Foundation,   *
  19  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.       *
  20  *                                                                      *
  21  ************************************************************************
  22  *
  23  *  Uplink/Uplink.class.php
  24  *
  25  * This file contains the basic P10 Protocol handler.
  26  *
  27  ************************************************************************
  28  * accessable methods:
  29  *
  30  * void initialize()
  31  *     has to be called after the settings have been set.
  32  *
  33  * void loop()
  34  *     loop function that should be calles as many times as possible.
  35  *     It reads from the socket and BLOCKS the script execution for a
  36  *     specific time if nothing is received.
  37  *
  38  * void setUplinkHost(String $host, int $port, bool $ssl = false, String $bind = null)
  39  *     sets the Uplink connection information.
  40  *
  41  * void setLoopTimeout(int $timeout)
  42  *     sets the maximum time loop() is blocking the script execution.
  43  *
  44  * void setUplinkServer(int $numeric, String $name, String $password, String $description)
  45  *     sets the own P10 Server information.
  46  *
  47  * void setValidateServer(String $name, String $password)
  48  *     sets additional security relevant information about the remote server.
  49  *
  50  * void setHISOptions(String $serverName, String $serverDescription String $usermask)
  51  *     sets the default Account fakehost
  52  *
  53  * void setEventHandler(EventHandler $event_handler)
  54  *     sets the EventHandlder
  55  */
  56 require_once("Client.class.php");
  57 require_once("Numerics.class.php");
  58 require_once("P10Formatter.class.php");
  59 require_once("P10_Server.class.php");
  60 require_once("P10_User.class.php");
  61 require_once("P10_Channel.class.php");
  62 require_once("P10_ModeSets.class.php");
  63 require_once("EventHandler.interface.php");
  64 require_once("IPAddr.class.php");
  65
  66 $e=1;
  67 define("ERR_NICK_IN_USE", $e++);
  68 define("ERR_INVALID_USER", $e++);
  69 define("ERR_INVALID_CHANNAME", $e++);
  70 define("ERR_NOT_CONNECTED", $e++);
  71 define("ERR_NOT_ON_CHANNEL", $e++);
  72
  73 class Uplink {
  74         private $client;
  75         private $settings = array();
  76         private $server;
  77         private $eventHandler = null;
  78         private $last_local_numeric = 1;
  79
  80         const FLAG_P10SESSION      = 0x0001; //connection is in P10 mode (server is connected)
  81         const FLAG_SECURITY_QUIT   = 0x0002; //local connection abort because of security issues
  82         const FLAG_NOT_CONNECTABLE = 0x0004; //remote server is not connectable
  83         const FLAG_BURST_PENDING   = 0x0008; //we still have to burst
  84         const FLAG_CONNECTED       = 0x0010; //connected and synced (ready)
  85         const FLAG_GOT_PASS        = 0x0020; //got PASS from the remote Server
  86         private $flags = 0;
  87
  88         public function __construct() {
  89                 $this->client = new Client();
  90                 $this->setSetting("recv_timeout", 1000);
  91                 $this->setSetting("his_usermask", "user.NoMask");
  92         }
  93
  94         public function initialize() {
  95                 if($this->server) {
  96                         trigger_error("Uplink already initialized.", E_USER_ERROR);
  97                         return;
  98                 }
  99                 $self_numeric = $this->getSetting("numeric");
 100                 $self_name = $this->getSetting("name");
 101                 $self_description = $this->getSetting("description");
 102                 if(!$self_numeric || !$self_name) {
 103                         trigger_error("Server Settings missing.", E_USER_ERROR);
 104                         return;
 105                 }
 106                 $this->server = new P10_Server($self_name, $self_numeric, null, time(), time(), $self_description);
 107         }
 108
 109         public function loop() {
 110                 if($this->server == null) {
 111                         trigger_error("Uplink not initialized.", E_USER_ERROR);
 112                         return;
 113                 }
 114                 if(!$this->client->connected()) {
 115                         if(($this->flags & self::FLAG_P10SESSION)) {
 116                                 //Server got disconnected
 117                                 $this->server->disconnectServer($this->eventHandler, true);
 118                                 $this->flags &= ~self::FLAG_P10SESSION;
 119                         }
 120                         $host = $this->getSetting("host");
 121                         $port = $this->getSetting("port");
 122                         if($host == null || $port == null) {
 123                                 trigger_error("Uplink Settings missing.", E_USER_ERROR);
 124                                 return;
 125                         }
 126                         if(($this->flags & self::FLAG_SECURITY_QUIT) || ($this->flags & self::FLAG_NOT_CONNECTABLE)) {
 127                                 sleep(1);
 128                         }
 129                         $state = $this->client->connect($host, $port, $this->getSetting("bind"), $this->getSetting("ssl"), $this->getSetting("recv_timeout"));
 130                         if(!$state) {
 131                                 usleep($this->getSetting("recv_timeout") / 1000);
 132                                 $this->flags |= self::FLAG_NOT_CONNECTABLE;
 133                                 return;
 134                         }
 135                         $this->flags = 0;
 136                         $this->loginServer();
 137                 }
 138                 //try to receive new data from the Uplink
 139                 $lines = $this->client->recv();
 140                 if($lines == null) return;
 141                 foreach($lines as $line) {
 142                         $this->parseLine($line);
 143                 }
 144         }
 145
 146         public function shutdown() {
 147                 if($this->client->connected()) {
 148                         if(($this->flags & self::FLAG_P10SESSION)) {
 149                                 $this->send("SQ", "Shutdown requested.");
 150                         }
 151                         $this->client->disconnect();
 152                 }
 153         }
 154
 155         public function setUplinkHost($host, $port, $ssl = false, $bind = null) {
 156                 $this->setSetting("host", $host);
 157                 $this->setSetting("port", $port);
 158                 $this->setSetting("ssl", $ssl);
 159                 $this->setSetting("bind", $bind);
 160         }
 161
 162         public function setLoopTimeout($timeout) {
 163                 $this->setSetting("recv_timeout", $timeout);
 164         }
 165
 166         public function setUplinkServer($numeric, $name, $password, $description) {
 167                 $this->setSetting("numeric", Numerics::intToNum($numeric, 2));
 168                 $this->setSetting("name", $name);
 169                 $this->setSetting("password", $password);
 170                 $this->setSetting("description", $description);
 171         }
 172
 173         public function setValidateServer($name, $password) {
 174                 $this->setSetting("their_name", $name);
 175                 $this->setSetting("their_password", $password);
 176         }
 177
 178         public function setHISOptions($servername, $serverdesc, $usermask) {
 179                 $this->setSetting("his_name", $servername);
 180                 $this->setSetting("his_desc", $serverdesc);
 181                 $this->setSetting("his_usermask", $usermask);
 182         }
 183
 184         public function setEventHandler($event_handler) {
 185                 if(!is_a($event_handler, "EventHandler")) {
 186                         trigger_error((is_object($event_handler) ? get_class($event_handler) : gettype($event_handler))." is NOT a valid EventHandler.", E_USER_ERROR);
 187                         return;
 188                 }
 189                 $this->eventHandler = $event_handler;
 190         }
 191
 192         private function setSetting($setting, $value) {
 193                 $this->settings[$setting] = $value;
 194         }
 195
 196         private function getSetting($setting) {
 197                 if(array_key_exists($setting, $this->settings)) {
 198                         return $this->settings[$setting];
 199                 } else {
 200                         return null;
 201                 }
 202         }
 203
 204         private function loginServer() {
 205                 $password = $this->getSetting("password");
 206                 $this->send("PASS", $password);
 207                 $this->send("SERVER", $this->server->getName(), $this->server->getStartTime(), $this->server->getLinkTime(), $this->server->getNumeric(), $this->server->getDescription());
 208         }
 209
 210         private function parseLine($line) {
 211                 $highExplode = explode(" :", $line, 2);
 212                 $tokens = explode(" ", $highExplode[0]);
 213                 if(count($highExplode) > 1)
 214                         $tokens[] = $highExplode[1];
 215                 $cmdPos = (($this->flags & self::FLAG_P10SESSION) ? 1 : 0);
 216                 if($cmdPos == 1) $from = $tokens[0];
 217                 else $from = null;
 218                 $arguments = array_slice($tokens, $cmdPos + 1);
 219                 if(($this->flags & self::FLAG_P10SESSION) && $this->eventHandler) {
 220                         $this->eventHandler->event_preparse($from, strtoupper($tokens[$cmdPos]), $arguments);
 221                 }
 222                 switch(strtoupper($tokens[$cmdPos])) {
 223                 //pre P10 Session
 224                         case "PASS":
 225                                 $this->recv_pass($from, $arguments);
 226                                 break;
 227                         case "SERVER":
 228                                 $this->recv_server($from, $arguments);
 229                                 break;
 230                         case "ERROR":
 231                                 $this->recv_error($from, $arguments);
 232                                 break;
 233                 //P10 Session
 234                         case "S":
 235                                 $this->recv_server($from, $arguments);
 236                                 break;
 237                         case "G":
 238                                 $this->recv_ping($from, $arguments);
 239                                 break;
 240                         case "N":
 241                                 $this->recv_nick($from, $arguments);
 242                                 break;
 243                         case "EB":
 244                                 $this->recv_end_of_burst($from, $arguments);
 245                                 break;
 246                         case "EA":
 247                                 $this->recv_end_of_burst_ack($from, $arguments);
 248                                 break;
 249                         case "SQ":
 250                                 $this->recv_server_quit($from, $arguments);
 251                                 break;
 252                         case "Q":
 253                                 $this->recv_quit($from, $arguments);
 254                                 break;
 255                         case "B":
 256                                 $this->recv_burst($from, $arguments);
 257                                 break;
 258                         case "J":
 259                         case "C":
 260                                 $this->recv_join($from, $arguments);
 261                                 break;
 262                         case "L":
 263                                 $this->recv_part($from, $arguments);
 264                                 break;
 265                         case "K":
 266                                 $this->recv_kick($from, $arguments);
 267                                 break;
 268                         case "D":
 269                                 $this->recv_kill($from, $arguments);
 270                                 break;
 271                         case "P":
 272                                 $this->recv_privmsg($from, $arguments);
 273                                 break;
 274                         case "O":
 275                                 $this->recv_notice($from, $arguments);
 276                                 break;
 277                         case "W":
 278                                 $this->recv_whois($from, $arguments);
 279                                 break;
 280                         case "A":
 281                                 $this->recv_away($from, $arguments);
 282                                 break;
 283                         case "M":
 284                         case "OM":
 285                                 $this->recv_mode($from, $arguments);
 286                                 break;
 287                 //default
 288                         default:
 289                                 //unknown cmd
 290                                 if($this->eventHandler)
 291                                         $this->eventHandler->event_unknown_cmd($from, strtoupper($tokens[$cmdPos]), $arguments);
 292                                 break;
 293                 }
 294         }
 295
 296         private function send($command) {
 297                 if(func_num_args() > 1) {
 298                         $args = array_slice(func_get_args(), 1);
 299                         $command = P10Formatter::formatCMD($this->getSetting("numeric"), $command, $args);
 300                 } else {
 301                         $command = P10Formatter::formatCMD($this->getSetting("numeric"), $command, array());
 302                 }
 303                 $this->client->send($command);
 304         }
 305
 306         /********************************************************************************************
 307          *                                     INCOMING COMMANDS                                    *
 308          ********************************************************************************************/
 309
 310         private function recv_pass($from, $args) {
 311                 $their_pass = $this->getSetting("their_password");
 312                 if($their_pass) {
 313                         if($args[0] != $their_pass) {
 314                                 //security QUIT
 315                                 $this->flags |= self::FLAG_SECURITY_QUIT;
 316                                 $this->send("ERROR", "Incorrect password received.");
 317                                 $this->client->disconnect();
 318                                 return;
 319                         }
 320                         $this->flags |= self::FLAG_GOT_PASS;
 321                 }
 322         }
 323
 324         private function recv_error($from, $args) {
 325                 //we received an error - the socket is dead for us, now
 326                 //maybe we want to log this, later
 327                 $this->client->disconnect();
 328         }
 329
 330         private function recv_server($from, $args) {
 331                 if($from == null) {
 332                         //our uplink Server
 333                         $their_name = $this->getSetting("their_name");
 334                         if($their_name && $args[0] != $their_name) {
 335                                 $this->flags |= self::FLAG_SECURITY_QUIT;
 336                                 $this->send("ERROR", "Invalid Server name");
 337                                 $this->client->disconnect();
 338                                 return;
 339                         }
 340                         if($this->getSetting("their_password") && !($this->flags & self::FLAG_GOT_PASS)) {
 341                                 $this->flags |= self::FLAG_SECURITY_QUIT;
 342                                 $this->send("ERROR", "PASS missing.");
 343                                 $this->client->disconnect();
 344                                 return;
 345                         }
 346                         $new_server = new P10_Server($args[0], substr($args[5],0,2), $this->server, $args[2], $args[3], $args[7]);
 347                         $this->server->addServer($new_server);
 348                         $this->flags |= self::FLAG_P10SESSION | self::FLAG_BURST_PENDING;
 349                         if($this->eventHandler)
 350                                 $this->eventHandler->event_newserver($new_server, !($this->flags & self::FLAG_CONNECTED));
 351                 } else {
 352                         //another server got a new slave server ^^
 353                         $server = P10_Server::getServerByNum($from);
 354                         if($server == null) {
 355                                 trigger_error("Parent Server (".$from.") does not exist or was not found on recv_server.", E_USER_ERROR);
 356                                 return;
 357                         }
 358                         $new_server = new P10_Server($args[0], substr($args[5],0,2), $server, $args[2], $args[3], $args[7]);
 359                         $server->addServer($new_server);
 360                         if($this->eventHandler)
 361                                 $this->eventHandler->event_newserver($new_server, !($this->flags & self::FLAG_CONNECTED));
 362                 }
 363         }
 364
 365         private function recv_ping($from, $args) {
 366                 $this->send("Z", $args[0]); //simply PONG
 367                 P10_Channel::recheckAllChannels();
 368         }
 369
 370         private function recv_nick($from, $args) {
 371                 if(count($args) <= 2) {
 372                         //Nick change
 373                         $user = P10_User::getUserByNum($from);
 374                         if($user == null) {
 375                                 trigger_error("Server tries to change the nick of an user that does not exist or was not found on recv_nick.", E_USER_ERROR);
 376                                 return;
 377                         }
 378                         if($this->eventHandler)
 379                                 $this->eventHandler->event_nick($user, $args[0]);
 380                         $user->setNick($args[0]);
 381                 } else {
 382                         //New User
 383                         $numeric = $args[count($args)-2];
 384                         $nick = $args[0];
 385                         $server = P10_Server::getServerByNum($from);
 386                         if($server == null) {
 387                                 trigger_error("Server (".$from.") the User (".$nick.") is coming from does not exist or was not found on recv_nick.", E_USER_ERROR);
 388                                 return;
 389                         }
 390                         if(substr($numeric,0,2) != $from) {
 391                                 trigger_error("A Server (".$from.") tries to connect a User with an invalid User numeric ('".$numeric."' does not belong to the Server)", E_USER_WARNING);
 392                         }
 393                         $connect_time = $args[2];
 394                         $ident = $args[3];
 395                         $host = $args[4];
 396                         $modes = implode(" ",array_slice($args, 5, count($args)-8));
 397                         $modes = new P10_UserModeSet($modes);
 398                         $ip = new IPAddr($args[count($args)-3]);
 399                         $realname = $args[count($args)-1];
 400                         $user = new P10_User($nick, $numeric, $server, $connect_time, $ident, $host, $ip, $realname, $modes);
 401                         if($this->eventHandler)
 402                                 $this->eventHandler->event_connect($user, !($this->flags & self::FLAG_CONNECTED));
 403                 }
 404         }
 405
 406         private function recv_end_of_burst($from, $args) {
 407                 if(($this->flags & self::FLAG_BURST_PENDING)) {
 408                         $this->burst();
 409                         $this->send("EA");
 410                         $this->flags &= ~self::FLAG_BURST_PENDING;
 411                 }
 412         }
 413
 414         private function recv_end_of_burst_ack($from, $args) {
 415                 $this->flags |= self::FLAG_CONNECTED;
 416         }
 417
 418         private function recv_server_quit($from, $args) {
 419                 $server = P10_Server::getServerByName($args[0]);
 420                 if($server == null) {
 421                         trigger_error("Server (".$args[0].") not found.", E_USER_ERROR);
 422                         return;
 423                 }
 424                 $server->disconnectServer($this->eventHandler);
 425         }
 426
 427         private function recv_quit($from, $args) {
 428                 $user = P10_User::getUserByNum($from);
 429                 if($user == null) {
 430                         trigger_error("Server tries to quit an user that does not exist or was not found on recv_quit.", E_USER_ERROR);
 431                         return;
 432                 }
 433                 if($this->eventHandler)
 434                         $this->eventHandler->event_quit($user, $args[0]);
 435                 $user->quit($args[0]);
 436         }
 437
 438         private function recv_burst($from, $args) {
 439                 $name = $args[0];
 440                 $create_time = $args[1];
 441                 $channel = P10_Channel::getChannelByName($name);
 442                 if($channel == null)
 443                         $channel = new P10_Channel($name);
 444                 $channel->setCreateTime($create_time);
 445                 $modes = $channel->getModes();
 446                 $userstr = $args[count($args)-1];
 447                 $modeparamcount = count($args)-3;
 448                 if($userstr[0] == "%") {
 449                         //ban list
 450                         $banlist = explode(" ", substr($userstr, 1));
 451                         foreach($banlist as $ban) {
 452                                 //TODO: save bans
 453                         }
 454                         $userstr = $args[count($args)-2];
 455                         $modeparamcount--;
 456                 }
 457                 if($userstr[0] == "+") { //MODE String
 458                         $modeparamcount++;
 459                         $userstr = "";
 460                 }
 461                 $users = explode(",",$userstr);
 462                 $isop = false; $isvoice = false;
 463                 foreach($users as $user) {
 464                         if($user == "") continue;
 465                         $uexp = explode(":", $user);
 466                         if(strlen($uexp[0]) != 5) {
 467                                 trigger_error("burst parse error: '".$uexp[0]."' is not an user numeric.", E_USER_ERROR);
 468                                 return;
 469                         }
 470                         if(count($uexp) > 1) {
 471                                 $isop = false;
 472                                 $isvoice = false;
 473                                 for($i = 0; $i < strlen($uexp[1]); $i++) {
 474                                         if($uexp[1][0] == "@") $isop = true;
 475                                         if($uexp[1][0] == "+") $isvoice = true;
 476                                 }
 477                         }
 478                         $user = P10_User::getUserByNum($uexp[0]);
 479                         if($user == null) {
 480                                 trigger_error("burst parse error: cant find User '".$uexp[0]."'.", E_USER_ERROR);
 481                                 return;
 482                         }
 483                         $channel->burstUser($user, $isop, $isvoice);
 484                         if($this->eventHandler)
 485                                 $this->eventHandler->event_join($user, $channel, true);
 486                 }
 487                 $modes->parseModes(implode(" ", array_slice($args, 2, $modeparamcount)));
 488         }
 489
 490         private function recv_join($from, $args) {
 491                 $user = P10_User::getUserByNum($from);
 492                 if($user == null) {
 493                         trigger_error("Server tries to join an user that does not exist or was not found on recv_join.", E_USER_ERROR);
 494                         return;
 495                 }
 496                 $channel = P10_Channel::getChannelByName($args[0]);
 497                 if($channel == null)
 498                         $channel = new P10_Channel($args[0]);
 499                 $channel->joinUser($user);
 500                 if($this->eventHandler)
 501                         $this->eventHandler->event_join($user, $channel, false);
 502         }
 503
 504         private function recv_part($from, $args) {
 505                 $user = P10_User::getUserByNum($from);
 506                 if($user == null) {
 507                         trigger_error("Server tries to part an user that does not exist or was not found on recv_join.", E_USER_ERROR);
 508                         return;
 509                 }
 510                 $channel = P10_Channel::getChannelByName($args[0]);
 511                 if($channel == null)
 512                         $channel = new P10_Channel($args[0]);
 513                 if($this->eventHandler)
 514                         $this->eventHandler->event_part($user, $channel, $args[1]);
 515                 $channel->partUser($user);
 516         }
 517
 518         private function recv_kick($from, $args) {
 519                 $user = P10_User::getUserByNum($from);
 520                 if($user == null) {
 521                         trigger_error("An unknown user tries to kick another user on recv_kick.", E_USER_ERROR);
 522                         return;
 523                 }
 524                 $channel = P10_Channel::getChannelByName($args[0]);
 525                 if($channel == null)
 526                         $channel = new P10_Channel($args[0]);
 527                 $target = P10_User::getUserByNum($args[1]);
 528                 if($target == null) {
 529                         trigger_error("Someone tries to kick an user that does not exist or was not found on recv_kick.", E_USER_ERROR);
 530                         return;
 531                 }
 532                 if($this->eventHandler)
 533                         $this->eventHandler->event_kick($user, $target, $channel, $args[1]);
 534                 $channel->partUser($user);
 535         }
 536
 537         private function recv_kill($from, $args) {
 538                 $user = P10_User::getUserByNum($args[0]);
 539                 if($user == null) {
 540                         trigger_error("Server tries to kill an user that does not exist or was not found on recv_quit.", E_USER_ERROR);
 541                         return;
 542                 }
 543                 if($this->eventHandler)
 544                         $this->eventHandler->event_quit($user, "Killed (".$args[1].")");
 545                 $user->quit($args[1]);
 546         }
 547
 548         private function recv_privmsg($from, $args) {
 549                 $user = P10_User::getUserByNum($from);
 550                 if($user == null) {
 551                         trigger_error("Server tries to send a privmsg from an user that does not exist or was not found on recv_privmsg.", E_USER_ERROR);
 552                         return;
 553                 }
 554                 if($this->eventHandler) {
 555                         if($args[0][0] == "#") {
 556                                 $channel = P10_Channel::getChannelByName($args[0]);
 557                                 if($channel == null)
 558                                         $channel = new P10_Channel($args[0]);
 559                                 $this->eventHandler->event_chanmessage($user, $channel, $args[1]);
 560                         } else {
 561                                 $targetUser = P10_User::getUserByNum($args[0]);
 562                                 if($targetUser == null) {
 563                                         trigger_error("Server tries to send a privmsg to an user that does not exist or was not found on recv_privmsg.", E_USER_ERROR);
 564                                         return;
 565                                 }
 566                                 $this->eventHandler->event_privmessage($user, $targetUser, $args[1]);
 567                         }
 568                 }
 569         }
 570
 571         private function recv_notice($from, $args) {
 572                 $user = P10_User::getUserByNum($from);
 573                 if($user == null) {
 574                         trigger_error("Server tries to send a notice from an user that does not exist or was not found on recv_notice.", E_USER_ERROR);
 575                         return;
 576                 }
 577                 if($this->eventHandler) {
 578                         if($args[0][0] == "#") {
 579                                 $channel = P10_Channel::getChannelByName($args[0]);
 580                                 if($channel == null)
 581                                         $channel = new P10_Channel($args[0]);
 582                                 $this->eventHandler->event_channotice($user, $channel, $args[1]);
 583                         } else {
 584                                 $targetUser = P10_User::getUserByNum($args[0]);
 585                                 if($targetUser == null) {
 586                                         trigger_error("Server tries to send a notice to an user that does not exist or was not found on recv_notice.", E_USER_ERROR);
 587                                         return;
 588                                 }
 589                                 $this->eventHandler->event_privnotice($user, $targetUser, $args[1]);
 590                         }
 591                 }
 592         }
 593
 594         private function recv_whois($from, $args) {
 595                 /* [get] ACAAF W AX :NetworkServ */
 596                 $fromUser = P10_User::getUserByNum($from);
 597                 if($fromUser == null) {
 598                         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);
 599                         return;
 600                 }
 601                 $users=explode(",",$args[1]);
 602                 foreach($users as $nick) {
 603                         $user = P10_User::getUserByNick($nick);
 604                         if(!$user) {
 605                                 $this->send("401", $from, $nick);
 606                                 continue;
 607                         }
 608                         $nick = $user->getNick();
 609                         $ident = $user->getIdent();
 610                         $hostmask = $user->getHost();
 611                         $modes = $user->getModes();
 612                         if($modes->hasMode('x')) {
 613                                 if(($fakehost = $modes->hasMode('f'))) {
 614                                         $hostmask = $fakehost;
 615                                 } elseif(($account = $modes->hasMode('r'))) {
 616                                         $hostmask = $account.".".$this->getSetting("his_usermask");
 617                                 }
 618                         }
 619                         $realname = $user->getRealname();
 620                         $this->send("311", $from , $nick, $ident, $hostmask, $realname);
 621                         if(((!$modes->hasMode('n') && !$modes->hasMode('k')) || $from == $user->getNumeric()) && count($user->getChannels()) != 0) {
 622                                 $channels = "";
 623                                 foreach($user->getChannels() as $channel) {
 624                                         $cmodes = $channel->getModes();
 625                                         $privs = $channel->getUserPrivs($user);
 626                                         if($cmodes->hasMode("s") && !$fromUser->isOnChannel($channel) && $from != $user->getNumeric()) continue;
 627                                         if($cmodes->hasMode("u") && ($privs & (P10_Channel::USERPRIV_OPED | P10_Channel::USERPRIV_VOICE)) == 0 && $from != $user->getNumeric()) continue;
 628                                         $chanstr = ($channels == "" ? "" : " ");
 629                                         $prefix = "";
 630                                         if(($privs & P10_Channel::USERPRIV_OPED)) {
 631                                                 $prefix = "@";
 632                                         } else if(($privs & P10_Channel::USERPRIV_VOICE)) {
 633                                                 $prefix = "+";
 634                                         }
 635                                         $chanstr .= $prefix.$channel->getName();
 636                                         if(strlen($channels) + strlen($chanstr) > 450) {
 637                                                 $this->send("319", $from, $nick, $channels);
 638                                                 $channels = $prefix.$channel->getName();
 639                                         }
 640                                 }
 641                                 if($channels != "") {
 642                                         $this->send("319", $from, $nick, $channels);
 643                                 }
 644                         }
 645                         if($fromUser->getModes()->hasMode("o") || $from == $user->getNumeric() || !$this->getSetting("his_name")) {
 646                                 $this->send("312", $from, $nick, $user->getServer()->getName(), $user->getServer()->getDescription());
 647                         } else {
 648                                 $this->send("312", $from, $nick, $this->getSetting("his_name"), $this->getSetting("his_desc"));
 649                         }
 650                         if($modes->hasMode("o") && (!$modes->hasMode("H") || $fromUser->getModes()->hasMode("o"))) {
 651                                 if($modes->hasMode("S")) {
 652                                         if($modes->hasMode("D"))
 653                                                 $this->send("313", $from, $nick, "is a Network Service");
 654                                         else
 655                                                 $this->send("313", $from, $nick, "is an illegal Network Service - HACKER!");
 656                                 } else
 657                                         $this->send("313", $from, $nick, "is an IRC Operator");
 658                         }
 659                         if(($auth = $modes->hasMode("r"))) {
 660                                 $this->send("330", $from, $nick, $auth);
 661                         }
 662                 }
 663                 $this->send("318", $from, $args[1]);
 664         }
 665
 666         private function recv_away($from, $args) {
 667                 $user = P10_User::getUserByNum($from);
 668                 if($user == null) {
 669                         trigger_error("Server tries to send an away command from an user that does not exist or was not found on recv_away.", E_USER_ERROR);
 670                         return;
 671                 }
 672                 if(count($args) > 0) {
 673                         $user->setAway($args[0]);
 674                 } else {
 675                         $user->setAway(null);
 676                 }
 677         }
 678
 679         private function recv_mode($from, $args) {
 680                 $user = P10_User::getUserByNum($from);
 681                 if($user == null) {
 682                         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);
 683                         return;
 684                 }
 685                 $modes = implode(" ",array_slice($args,1));
 686                 if($args[0][0] == "#") {
 687                         $channel = P10_Channel::getChannelByName($args[0]);
 688                         if($channel == null)
 689                                 $channel = new P10_Channel($args[0]);
 690                         $channel->getModes()->setModes($modes);
 691                         if($this->eventHandler)
 692                                 $this->eventHandler->event_chanmode($user, $channel, $modes);
 693                 } else {
 694                         $targetUser = P10_User::getUserByNum($args[0]);
 695                         if($targetUser == null) {
 696                                 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);
 697                                 return;
 698                         }
 699                         $targetUser->getModes()->setModes($modes);
 700                         if($this->eventHandler)
 701                                 $this->eventHandler->event_usermode($targetUser, $modes);
 702                 }
 703         }
 704
 705         /********************************************************************************************
 706          *                                     SERVER FUNCTIONS                                     *
 707          ********************************************************************************************/
 708
 709         private function burst() {
 710                 foreach($this->server->getUsers() as $user) {
 711                         $nick = $user->getNick();
 712                         $connect_time = $user->getConnectTime();
 713                         $ident = $user->getIdent();
 714                         $host = $user->getHost();
 715                         $modes = $user->getModes()->getModeString();
 716                         $ip = Numerics::numericFromIP($user->getIP());
 717                         $numeric = $user->getNumeric();
 718                         $realname = $user->getRealname();
 719                         $this->send("N", $nick, $connect_time, $ident, $host, $modes, $ip, $numeric, $realname);
 720                 }
 721                 foreach(P10_Channel::getChannels() as $channel) {
 722                         $sorted_users = array('ov' => array(), 'o' => array(), 'v' => array(), '-' => array());
 723                         $local_users = false;
 724                         foreach($channel->getUsers() as $user) {
 725                                 if(substr($user->getNumeric(), 0, 2) != $this->server->getNumeric()) continue; //skip users that are not on the local server
 726                                 $privs = $channel->getUserPrivs($user);
 727                                 $strPrivs = "";
 728                                 if(($privs & P10_Channel::USERPRIV_OPED)) $strPrivs .= "o";
 729                                 if(($privs & P10_Channel::USERPRIV_VOICE)) $strPrivs .= "v";
 730                                 if($strPrivs == "") $strPrivs = "-";
 731                                 $local_users = true;
 732                                 $sorted_users[$strPrivs][] = $user;
 733                         }
 734                         if(!$local_users) continue;
 735                         $userStr = "";
 736                         foreach($sorted_users['-'] as $user) {
 737                                 if($userStr != "") $userStr.=",";
 738                                 $userStr .= $user->getNumeric();
 739                         }
 740                         foreach($sorted_users['ov'] as $i => $user) {
 741                                 if($userStr != "") $userStr.=",";
 742                                 $userStr .= $user->getNumeric();
 743                                 if($i == 0) $userStr .= ":ov";
 744                         }
 745                         foreach($sorted_users['o'] as $i => $user) {
 746                                 if($userStr != "") $userStr.=",";
 747                                 $userStr .= $user->getNumeric();
 748                                 if($i == 0) $userStr .= ":o";
 749                         }
 750                         foreach($sorted_users['v'] as $i => $user) {
 751                                 if($userStr != "") $userStr.=",";
 752                                 $userStr .= $user->getNumeric();
 753                                 if($i == 0) $userStr .= ":v";
 754                         }
 755                         $banString = "";
 756                         //TODO: Build ban String
 757                         $burstString = "";
 758                         $modeString = $channel->getModes()->getModeString();
 759                         if($modeString != "+") {
 760                                 $burstString .= $modeString;
 761                         }
 762                         if($userStr != "") {
 763                                 if($burstString != "") $burstString .= " ";
 764                                 $burstString .= $userStr;
 765                         }
 766                         if($banString != "") {
 767                                 if($burstString != "") $burstString .= " ";
 768                                 $burstString .= ":%".$banString;
 769                         }
 770                         $this->send("B", $channel->getName(), $channel->getCreateTime(), $burstString);
 771                 }
 772                 $this->send("EB");
 773         }
 774
 775         /********************************************************************************************
 776          *                                    LOCAL USER FUNCTIONS                                  *
 777          ********************************************************************************************/
 778
 779         public function addUser($nick, $ident, $host, $ip, $modes, $realname) {
 780                 $user = P10_User::getUserByNick($nick);
 781                 if($user != null) return ERR_NICK_IN_USE;
 782                 $numeric = substr($this->server->getNumeric(),0,2).Numerics::intToNum($this->last_local_numeric, 3);
 783                 while(P10_User::getUserByNum($numeric)) {
 784                         $this->last_local_numeric++;
 785                         $numeric = substr($this->server->getNumeric(),0,2).Numerics::intToNum($this->last_local_numeric, 3);
 786                 }
 787                 $this->last_local_numeric++;
 788                 $modes = new P10_UserModeSet($modes);
 789                 $ip = new IPAddr($ip);
 790                 $user = new P10_User($nick, $numeric, $this->server, time(), $ident, $host, $ip, $realname, $modes);
 791                 if(($this->flags & self::FLAG_CONNECTED)) {
 792                         $ip = $user->getIP()->getNumeric();
 793                         $this->send("N", $nick, $user->getConnectTime(), $ident, $host, $user->getModes()->getModeString(), $ip, $numeric, $realname);
 794                 }
 795                 return $user;
 796         }
 797
 798         public function delUser($user, $reason) {
 799                 if(!is_a($user, "P10_User")) return ERR_INVALID_USER;
 800                 if($user->getServer() === $this->server) {
 801                         //local user (QUIT)
 802                         $user->quit($reason);
 803                         if(($this->flags & self::FLAG_CONNECTED))
 804                                 $this->send("Q", $user->getNumeric(), $reason);
 805                 } else {
 806                         //remote user (KILL)
 807                         if(!($this->flags & self::FLAG_CONNECTED))
 808                                 return ERR_NOT_CONNECTED;
 809                         if($this->eventHandler)
 810                                 $this->eventHandler->event_quit($user, "Killed (".$reason.")");
 811                         $user->quit("Killed (".$reason.")");
 812                         $name = ($this->getSetting('his_name') ? $this->getSetting('his_name') : $this->getSetting('name'));
 813
 814                         $this->send("D", $user->getNumeric(), $name, $reason);
 815                 }
 816         }
 817
 818         public function join($user, $chanName, $privs = 0) {
 819                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 820                         return ERR_INVALID_USER;
 821                 if($chanName[0] != "#")
 822                         return ERR_INVALID_CHANNAME;
 823                 $channel = P10_Channel::getChannelByName($chanName);
 824                 if($channel == null)
 825                         $channel = new P10_Channel($chanName);
 826                 $channel->joinUser($user);
 827                 if(($this->flags & self::FLAG_CONNECTED))
 828                         $this->send("J", $user->getNumeric(), $chanName, time(), 0);
 829                 if($privs != 0) {
 830                         $channel->setUserPrivs($user, $privs);
 831                         if(($this->flags & self::FLAG_CONNECTED)) {
 832                                 $modestr = "+".(($privs & P10_Channel::USERPRIV_OPED) ? "o" : "").(($privs & P10_Channel::USERPRIV_VOICE) ? "v" : "");
 833                                 $modestr .= (($privs & P10_Channel::USERPRIV_OPED) ? " ".$user->getNumeric() : "");
 834                                 $modestr .= (($privs & P10_Channel::USERPRIV_VOICE) ? " ".$user->getNumeric() : "");
 835                                 $this->send("OM", $user->getNumeric(), $chanName, $modestr);
 836                         }
 837                 }
 838                 if($this->eventHandler)
 839                         $this->eventHandler->event_join($user, $channel, false);
 840         }
 841
 842         public function part($user, $chanName, $reason) {
 843                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 844                         return ERR_INVALID_USER;
 845                 if(!((is_string($chanName) && $chanName[0] == "#") || is_a($chanName, "P10_Channel")))
 846                         return ERR_INVALID_CHANNAME;
 847                 if(is_a($chanName, "P10_Channel"))
 848                         $channel = $chanName;
 849                 else
 850                         $channel = P10_Channel::getChannelByName($chanName);
 851                 if($channel == null)
 852                         $channel = new P10_Channel($chanName);
 853                 if(!$user->isOnChannel($channel))
 854                         return ERR_NOT_ON_CHANNEL;
 855                 if($this->eventHandler)
 856                         $this->eventHandler->event_part($user, $channel, $reason);
 857                 $channel->partUser($user, $reason);
 858                 if(($this->flags & self::FLAG_CONNECTED))
 859                         $this->send("L", $user->getNumeric(), $chanName, $reason);
 860         }
 861
 862         public function kick($user, $target, $chanName, $reason) {
 863                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 864                         return ERR_INVALID_USER;
 865                 if(!is_a($target, "P10_User"))
 866                         return ERR_INVALID_USER;
 867                 if(!((is_string($chanName) && $chanName[0] == "#") || is_a($chanName, "P10_Channel")))
 868                         return ERR_INVALID_CHANNAME;
 869                 if(is_a($chanName, "P10_Channel"))
 870                         $channel = $chanName;
 871                 else
 872                         $channel = P10_Channel::getChannelByName($chanName);
 873                 if($channel == null)
 874                         $channel = new P10_Channel($chanName);
 875                 if(!$target->isOnChannel($channel))
 876                         return ERR_NOT_ON_CHANNEL;
 877                 if($this->eventHandler)
 878                         $this->eventHandler->event_kick($user, $target, $channel, $reason);
 879                 $channel->partUser($target, $reason);
 880                 if(($this->flags & self::FLAG_CONNECTED))
 881                         $this->send("K", $user->getNumeric(), $chanName, $target->getNumeric(), $reason);
 882         }
 883
 884         public function privmsg($user, $target, $message) {
 885                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 886                         return ERR_INVALID_USER;
 887                 if(!is_a($target, "P10_User") && !is_a($target, "P10_Channel") && !(is_string($target) && ($target[0] == "#" || P10_User::getUserByNick($target))))
 888                         return ERR_INVALID_USER;
 889                 if(is_a($target, "P10_Channel"))
 890                         $targetStr = $target->getName();
 891                 else if(is_a($target, "P10_User"))
 892                         $targetStr = $target->getNumeric();
 893                 else if($target[0] == "#")
 894                         $targetStr = $target;
 895                 else
 896                         $targetStr = P10_User::getUserByNick($target)->getNumeric();
 897
 898                 if($this->eventHandler) {
 899                         if($targetStr[0] == "#") {
 900                                 $channel = P10_Channel::getChannelByName($targetStr);
 901                                 if($channel == null)
 902                                         $channel = new P10_Channel($targetStr);
 903                                 $this->eventHandler->event_chanmessage($user, $channel, $message);
 904                         } else {
 905                                 $targetUser = P10_User::getUserByNum($targetStr);
 906                                 $this->eventHandler->event_privmessage($user, $targetUser, $message);
 907                         }
 908                 }
 909                 if(($this->flags & self::FLAG_CONNECTED))
 910                         $this->send("P", $user->getNumeric(), $targetStr, $message);
 911         }
 912
 913         public function notice($user, $target, $message) {
 914                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 915                         return ERR_INVALID_USER;
 916                 if(!is_a($target, "P10_User") && !is_a($target, "P10_Channel") && !(is_string($target) && ($target[0] == "#" || P10_User::getUserByNick($target))))
 917                         return ERR_INVALID_USER;
 918                 if(is_a($target, "P10_Channel"))
 919                         $targetStr = $target->getName();
 920                 else if(is_a($target, "P10_User"))
 921                         $targetStr = $target->getNumeric();
 922                 else if($target[0] == "#")
 923                         $targetStr = $target;
 924                 else
 925                         $targetStr = P10_User::getUserByNick($target)->getNumeric();
 926
 927                 if($this->eventHandler) {
 928                         if($targetStr[0] == "#") {
 929                                 $channel = P10_Channel::getChannelByName($targetStr);
 930                                 if($channel == null)
 931                                         $channel = new P10_Channel($targetStr);
 932                                 $this->eventHandler->event_channotice($user, $channel, $message);
 933                         } else {
 934                                 $targetUser = P10_User::getUserByNum($targetStr);
 935                                 $this->eventHandler->event_privnotice($user, $targetUser, $message);
 936                         }
 937                 }
 938                 if(($this->flags & self::FLAG_CONNECTED))
 939                         $this->send("O", $user->getNumeric(), $targetStr, $message);
 940         }
 941
 942         public function mode($user, $target, $modes, $force = false) {
 943                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 944                         return ERR_INVALID_USER;
 945                 if(!is_a($target, "P10_User") && !is_a($target, "P10_Channel") && !(is_string($target) && ($target[0] == "#" || P10_User::getUserByNick($target))))
 946                         return ERR_INVALID_USER;
 947                 if(is_a($target, "P10_Channel"))
 948                         $targetStr = $target->getName();
 949                 else if(is_a($target, "P10_User"))
 950                         $targetStr = $target->getNumeric();
 951                 else if($target[0] == "#")
 952                         $targetStr = $target;
 953                 else
 954                         $targetStr = P10_User::getUserByNick($target)->getNumeric();
 955
 956                 if($targetStr[0] == "#") {
 957                         $channel = P10_Channel::getChannelByName($targetStr);
 958                         if($channel == null)
 959                                 $channel = new P10_Channel($targetStr);
 960                         $modes = $channel->getModes()->setModes($modes, true);
 961                         if(($this->flags & self::FLAG_CONNECTED))
 962                                 $this->send(($force ? "OM" : "M"), $user->getNumeric(), $targetStr, $modes);
 963                         if($this->eventHandler)
 964                                 $this->eventHandler->event_chanmode(($force ? $this->server : $user), $channel, $modes);
 965                 } else {
 966                         $targetUser = P10_User::getUserByNum($targetStr);
 967                         if($targetUser->getServer() === $this->server) {
 968                                 //just do it :D
 969                                 $modes = $targetUser->getModes()->setModes($modes, true);
 970                                 if(($this->flags & self::FLAG_CONNECTED))
 971                                         $this->send("M", $targetUser->getNumeric(), $targetUser->getNick(), $modes);
 972                                 if($this->eventHandler)
 973                                         $this->eventHandler->event_usermode($targetUser, $modes);
 974                         } else {
 975                                 //SVSMODE
 976                                 if(($this->flags & self::FLAG_CONNECTED))
 977                                         $this->send("SM", $user->getNumeric(), $targetUser->getNumeric(), $modes);
 978                         }
 979                 }
 980         }
 981
 982
 983
 984 }
 985
 986 ?>