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