Uplink/Uplink.class.php

   1 <?php
   2 /******************************* PHP-P10 v2 *****************************
   3  * Copyright (C) 2011  Philipp Kreil (pk910)                            *
   4  *                                                                      *
   5  * This program is free software: you can redistribute it and/or modify *
   6  * it under the terms of the GNU General Public License as published by *
   7  * the Free Software Foundation, either version 3 of the License, or    *
   8  * (at your option) any later version.                                  *
   9  *                                                                      *
  10  * This program is distributed in the hope that it will be useful,      *
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        *
  13  * GNU General Public License for more details.                         *
  14  *                                                                      *
  15  * You should have received a copy of the GNU General Public License    *
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>. *
  17  *                                                                      *
  18  ************************************************************************
  19  *
  20  *  Uplink/Uplink.class.php
  21  *
  22  * This file contains the basic P10 Protocol handler.
  23  *
  24  */
  25 require_once("Client.class.php");
  26 require_once("Numerics.class.php");
  27 require_once("P10Formatter.class.php");
  28 require_once("P10_Server.class.php");
  29 require_once("P10_User.class.php");
  30 require_once("P10_Channel.class.php");
  31 require_once("P10_ModeSets.class.php");
  32 require_once("EventHandler.interface.php");
  33 require_once("IPAddr.class.php");
  34
  35 $e=1;
  36 define("ERR_NICK_IN_USE", $e++);
  37 define("ERR_INVALID_USER", $e++);
  38 define("ERR_INVALID_CHANNAME", $e++);
  39 define("ERR_NOT_CONNECTED", $e++);
  40 define("ERR_NOT_ON_CHANNEL", $e++);
  41
  42 class Uplink {
  43         private $client;
  44         private $settings = array();
  45         private $server;
  46         private $eventHandler = null;
  47         private $last_local_numeric = 0;
  48
  49         const FLAG_P10SESSION      = 0x0001; //connection is in P10 mode (server is connected)
  50         const FLAG_SECURITY_QUIT   = 0x0002; //local connection abort because of security issues
  51         const FLAG_NOT_CONNECTABLE = 0x0004; //remote server is not connectable
  52         const FLAG_BURST_PENDING   = 0x0008; //we still have to burst
  53         const FLAG_CONNECTED       = 0x0010; //connected and synced (ready)
  54         const FLAG_GOT_PASS        = 0x0020; //got PASS from the remote Server
  55         private $flags = 0;
  56
  57         public function __construct() {
  58                 $this->client = new Client();
  59                 $this->setSetting("recv_timeout", 1000);
  60                 $this->setSetting("his_usermask", "user.NoMask");
  61         }
  62
  63         public function initialize() {
  64                 if($this->server) {
  65                         trigger_error("Uplink already initialized.", E_USER_ERROR);
  66                         return;
  67                 }
  68                 $self_numeric = $this->getSetting("numeric");
  69                 $self_name = $this->getSetting("name");
  70                 $self_description = $this->getSetting("description");
  71                 if(!$self_numeric || !$self_name) {
  72                         trigger_error("Server Settings missing.", E_USER_ERROR);
  73                         return;
  74                 }
  75                 $this->server = new P10_Server($self_name, $self_numeric, null, time(), time(), $self_description);
  76         }
  77
  78         public function loop() {
  79                 if($this->server == null) {
  80                         trigger_error("Uplink not initialized.", E_USER_ERROR);
  81                         return;
  82                 }
  83                 if(!$this->client->connected()) {
  84                         if(($this->flags & self::FLAG_P10SESSION)) {
  85                                 //Server got disconnected
  86                                 $this->server->disconnectServer($this->eventHandler, true);
  87                                 $this->flags &= ~self::FLAG_P10SESSION;
  88                         }
  89                         $host = $this->getSetting("host");
  90                         $port = $this->getSetting("port");
  91                         if($host == null || $port == null) {
  92                                 trigger_error("Uplink Settings missing.", E_USER_ERROR);
  93                                 return;
  94                         }
  95                         if(($this->flags & self::FLAG_SECURITY_QUIT) || ($this->flags & self::FLAG_NOT_CONNECTABLE)) {
  96                                 sleep(1);
  97                         }
  98                         $state = $this->client->connect($host, $port, $this->getSetting("bind"), $this->getSetting("ssl"), $this->getSetting("recv_timeout"));
  99                         if(!$state) {
 100                                 usleep($this->getSetting("recv_timeout") / 1000);
 101                                 $this->flags |= self::FLAG_NOT_CONNECTABLE;
 102                                 return;
 103                         }
 104                         $this->flags = 0;
 105                         $this->loginServer();
 106                 }
 107                 //try to receive new data from the Uplink
 108                 $lines = $this->client->recv();
 109                 if($lines == null) return;
 110                 foreach($lines as $line) {
 111                         $this->parseLine($line);
 112                 }
 113         }
 114
 115         public function shutdown() {
 116                 if($this->client->connected()) {
 117                         if(($this->flags & self::FLAG_P10SESSION)) {
 118                                 $this->send("SQ", "Shutdown requested.");
 119                         }
 120                         $this->client->disconnect();
 121                 }
 122         }
 123
 124         public function setUplinkHost($host, $port, $ssl = false, $bind = null) {
 125                 $this->setSetting("host", $host);
 126                 $this->setSetting("port", $port);
 127                 $this->setSetting("ssl", $ssl);
 128                 $this->setSetting("bind", $bind);
 129         }
 130
 131         public function setLoopTimeout($timeout) {
 132                 $this->setSetting("recv_timeout", $timeout);
 133         }
 134
 135         public function setUplinkServer($numeric, $name, $password, $description) {
 136                 $this->setSetting("numeric", Numerics::intToNum($numeric, 2));
 137                 $this->setSetting("name", $name);
 138                 $this->setSetting("password", $password);
 139                 $this->setSetting("description", $description);
 140         }
 141
 142         public function setValidateServer($name, $password) {
 143                 $this->setSetting("their_name", $name);
 144                 $this->setSetting("their_password", $password);
 145         }
 146
 147         public function setHISOptions($servername, $serverdesc, $usermask) {
 148                 $this->setSetting("his_name", $servername);
 149                 $this->setSetting("his_desc", $serverdesc);
 150                 $this->setSetting("his_usermask", $usermask);
 151         }
 152
 153         public function setEventHandler($event_handler) {
 154                 if(!is_a($event_handler, "EventHandler")) {
 155                         trigger_error((is_object($event_handler) ? get_class($event_handler) : gettype($event_handler))." is NOT a valid EventHandler.", E_USER_ERROR);
 156                         return;
 157                 }
 158                 $this->eventHandler = $event_handler;
 159         }
 160
 161         private function setSetting($setting, $value) {
 162                 $this->settings[$setting] = $value;
 163         }
 164
 165         private function getSetting($setting) {
 166                 if(array_key_exists($setting, $this->settings)) {
 167                         return $this->settings[$setting];
 168                 } else {
 169                         return null;
 170                 }
 171         }
 172
 173         private function loginServer() {
 174                 $password = $this->getSetting("password");
 175                 $this->send("PASS", $password);
 176                 $this->send("SERVER", $this->server->getName(), $this->server->getStartTime(), $this->server->getLinkTime(), $this->server->getNumeric(), $this->server->getDescription());
 177         }
 178
 179         private function parseLine($line) {
 180                 $highExplode = explode(" :", $line, 2);
 181                 $tokens = explode(" ", $highExplode[0]);
 182                 if(count($highExplode) > 1)
 183                         $tokens[] = $highExplode[1];
 184                 $cmdPos = (($this->flags & self::FLAG_P10SESSION) ? 1 : 0);
 185                 if($cmdPos == 1) $from = $tokens[0];
 186                 else $from = null;
 187                 $arguments = array_slice($tokens, $cmdPos + 1);
 188                 if(($this->flags & self::FLAG_P10SESSION) && $this->eventHandler) {
 189                         $this->eventHandler->event_preparse($from, strtoupper($tokens[$cmdPos]), $arguments);
 190                 }
 191                 switch(strtoupper($tokens[$cmdPos])) {
 192                 //pre P10 Session
 193                         case "PASS":
 194                                 $this->recv_pass($from, $arguments);
 195                                 break;
 196                         case "SERVER":
 197                                 $this->recv_server($from, $arguments);
 198                                 break;
 199                         case "ERROR":
 200                                 $this->recv_error($from, $arguments);
 201                                 break;
 202                 //P10 Session
 203                         case "S":
 204                                 $this->recv_server($from, $arguments);
 205                                 break;
 206                         case "G":
 207                                 $this->recv_ping($from, $arguments);
 208                                 break;
 209                         case "N":
 210                                 $this->recv_nick($from, $arguments);
 211                                 break;
 212                         case "EB":
 213                                 $this->recv_end_of_burst($from, $arguments);
 214                                 break;
 215                         case "EA":
 216                                 $this->recv_end_of_burst_ack($from, $arguments);
 217                                 break;
 218                         case "SQ":
 219                                 $this->recv_server_quit($from, $arguments);
 220                                 break;
 221                         case "Q":
 222                                 $this->recv_quit($from, $arguments);
 223                                 break;
 224                         case "B":
 225                                 $this->recv_burst($from, $arguments);
 226                                 break;
 227                         case "J":
 228                         case "C":
 229                                 $this->recv_join($from, $arguments);
 230                                 break;
 231                         case "L":
 232                                 $this->recv_part($from, $arguments);
 233                                 break;
 234                         case "K":
 235                                 $this->recv_kick($from, $arguments);
 236                                 break;
 237                         case "D":
 238                                 $this->recv_kill($from, $arguments);
 239                                 break;
 240                         case "P":
 241                                 $this->recv_privmsg($from, $arguments);
 242                                 break;
 243                         case "O":
 244                                 $this->recv_notice($from, $arguments);
 245                                 break;
 246                         case "W":
 247                                 $this->recv_whois($from, $arguments);
 248                                 break;
 249                         case "A":
 250                                 $this->recv_away($from, $arguments);
 251                                 break;
 252                         case "M":
 253                         case "OM":
 254                                 $this->recv_mode($from, $arguments);
 255                                 break;
 256                 //default
 257                         default:
 258                                 //unknown cmd
 259                                 if($this->eventHandler)
 260                                         $this->eventHandler->event_unknown_cmd($from, strtoupper($tokens[$cmdPos]), $arguments);
 261                                 break;
 262                 }
 263         }
 264
 265         private function send($command) {
 266                 if(func_num_args() > 1) {
 267                         $args = array_slice(func_get_args(), 1);
 268                         $command = P10Formatter::formatCMD($this->getSetting("numeric"), $command, $args);
 269                 } else {
 270                         $command = P10Formatter::formatCMD($this->getSetting("numeric"), $command, array());
 271                 }
 272                 $this->client->send($command);
 273         }
 274
 275         /********************************************************************************************
 276          *                                     INCOMING COMMANDS                                    *
 277          ********************************************************************************************/
 278
 279         private function recv_pass($from, $args) {
 280                 $their_pass = $this->getSetting("their_password");
 281                 if($their_pass) {
 282                         if($args[0] != $their_pass) {
 283                                 //security QUIT
 284                                 $this->flags |= self::FLAG_SECURITY_QUIT;
 285                                 $this->send("ERROR", "Incorrect password received.");
 286                                 $this->client->disconnect();
 287                                 return;
 288                         }
 289                         $this->flags |= self::FLAG_GOT_PASS;
 290                 }
 291         }
 292
 293         private function recv_error($from, $args) {
 294                 //we received an error - the socket is dead for us, now
 295                 //maybe we want to log this, later
 296                 $this->client->disconnect();
 297         }
 298
 299         private function recv_server($from, $args) {
 300                 if($from == null) {
 301                         //our uplink Server
 302                         $their_name = $this->getSetting("their_name");
 303                         if($their_name && $args[0] != $their_name) {
 304                                 $this->flags |= self::FLAG_SECURITY_QUIT;
 305                                 $this->send("ERROR", "Invalid Server name");
 306                                 $this->client->disconnect();
 307                                 return;
 308                         }
 309                         if($this->getSetting("their_password") && !($this->flags & self::FLAG_GOT_PASS)) {
 310                                 $this->flags |= self::FLAG_SECURITY_QUIT;
 311                                 $this->send("ERROR", "PASS missing.");
 312                                 $this->client->disconnect();
 313                                 return;
 314                         }
 315                         $new_server = new P10_Server($args[0], substr($args[5],0,2), $this->server, $args[2], $args[3], $args[7]);
 316                         $this->server->addServer($new_server);
 317                         $this->flags |= self::FLAG_P10SESSION | self::FLAG_BURST_PENDING;
 318                         if($this->eventHandler)
 319                                 $this->eventHandler->event_newserver($new_server, !($this->flags & self::FLAG_CONNECTED));
 320                 } else {
 321                         //another server got a new slave server ^^
 322                         $server = P10_Server::getServerByNum($from);
 323                         if($server == null) {
 324                                 trigger_error("Parent Server (".$from.") does not exist or was not found on recv_server.", E_USER_ERROR);
 325                                 return;
 326                         }
 327                         $new_server = new P10_Server($args[0], substr($args[5],0,2), $server, $args[2], $args[3], $args[7]);
 328                         $server->addServer($new_server);
 329                         if($this->eventHandler)
 330                                 $this->eventHandler->event_newserver($new_server, !($this->flags & self::FLAG_CONNECTED));
 331                 }
 332         }
 333
 334         private function recv_ping($from, $args) {
 335                 $this->send("Z", $args[0]); //simply PONG
 336                 P10_Channel::recheckAllChannels();
 337         }
 338
 339         private function recv_nick($from, $args) {
 340                 if(count($args) <= 2) {
 341                         //Nick change
 342                         $user = P10_User::getUserByNum($from);
 343                         if($user == null) {
 344                                 trigger_error("Server tries to change the nick of an user that does not exist or was not found on recv_nick.", E_USER_ERROR);
 345                                 return;
 346                         }
 347                         if($this->eventHandler)
 348                                 $this->eventHandler->event_nick($user, $args[0]);
 349                         $user->setNick($args[0]);
 350                 } else {
 351                         //New User
 352                         $numeric = $args[count($args)-2];
 353                         $nick = $args[0];
 354                         $server = P10_Server::getServerByNum($from);
 355                         if($server == null) {
 356                                 trigger_error("Server (".$from.") the User (".$nick.") is coming from does not exist or was not found on recv_nick.", E_USER_ERROR);
 357                                 return;
 358                         }
 359                         if(substr($numeric,0,2) != $from) {
 360                                 trigger_error("A Server (".$from.") tries to connect a User with an invalid User numeric ('".$numeric."' does not belong to the Server)", E_USER_WARNING);
 361                         }
 362                         $connect_time = $args[2];
 363                         $ident = $args[3];
 364                         $host = $args[4];
 365                         $modes = implode(" ",array_slice($args, 5, count($args)-8));
 366                         $modes = new P10_UserModeSet($modes);
 367                         $ip = new IPAddr($args[count($args)-3]);
 368                         $realname = $args[count($args)-1];
 369                         $user = new P10_User($nick, $numeric, $server, $connect_time, $ident, $host, $ip, $realname, $modes);
 370                         if($this->eventHandler)
 371                                 $this->eventHandler->event_connect($user, !($this->flags & self::FLAG_CONNECTED));
 372                 }
 373         }
 374
 375         private function recv_end_of_burst($from, $args) {
 376                 if(($this->flags & self::FLAG_BURST_PENDING)) {
 377                         $this->burst();
 378                         $this->send("EA");
 379                         $this->flags &= ~self::FLAG_BURST_PENDING;
 380                 }
 381         }
 382
 383         private function recv_end_of_burst_ack($from, $args) {
 384                 $this->flags |= self::FLAG_CONNECTED;
 385         }
 386
 387         private function recv_server_quit($from, $args) {
 388                 $server = P10_Server::getServerByName($args[0]);
 389                 if($server == null) {
 390                         trigger_error("Server (".$args[0].") not found.", E_USER_ERROR);
 391                         return;
 392                 }
 393                 $server->disconnectServer($this->eventHandler);
 394         }
 395
 396         private function recv_quit($from, $args) {
 397                 $user = P10_User::getUserByNum($from);
 398                 if($user == null) {
 399                         trigger_error("Server tries to quit an user that does not exist or was not found on recv_quit.", E_USER_ERROR);
 400                         return;
 401                 }
 402                 if($this->eventHandler)
 403                         $this->eventHandler->event_quit($user, $args[0]);
 404                 $user->quit($args[0]);
 405         }
 406
 407         private function recv_burst($from, $args) {
 408                 $name = $args[0];
 409                 $create_time = $args[1];
 410         if(count($args) == 2) {
 411             //we've got an empty channel without any modes set???  dead channel!
 412             return;
 413         }
 414                 $channel = P10_Channel::getChannelByName($name);
 415                 if($channel == null)
 416                         $channel = new P10_Channel($name);
 417                 $channel->setCreateTime($create_time);
 418                 $modes = $channel->getModes();
 419                 $userstr = $args[count($args)-1];
 420                 if($userstr[0] == "%") {
 421                         //ban list
 422                         $banlist = explode(" ", substr($userstr, 1));
 423                         foreach($banlist as $ban) {
 424                                 //TODO: save bans
 425                         }
 426                         $userstr = $args[count($args)-2];
 427                 }
 428                 if($userstr[0] == "+") { //MODE String
 429                         $userstr = "";
 430                 }
 431                 $users = explode(",",$userstr);
 432                 $isop = false; $isvoice = false;
 433                 foreach($users as $user) {
 434                         if($user == "") continue;
 435                         $uexp = explode(":", $user);
 436                         if(strlen($uexp[0]) != 5) {
 437                                 trigger_error("burst parse error: '".$uexp[0]."' is not an user numeric.", E_USER_WARNING);
 438                                 break;
 439                         }
 440                         if(count($uexp) > 1) {
 441                                 $isop = false;
 442                                 $isvoice = false;
 443                                 for($i = 0; $i < strlen($uexp[1]); $i++) {
 444                                         if($uexp[1][0] == "@") $isop = true;
 445                                         if($uexp[1][0] == "+") $isvoice = true;
 446                                 }
 447                         }
 448                         $user = P10_User::getUserByNum($uexp[0]);
 449                         if($user == null) {
 450                                 trigger_error("burst parse error: cant find User '".$uexp[0]."'.", E_USER_ERROR);
 451                                 return;
 452                         }
 453                         $channel->burstUser($user, $isop, $isvoice);
 454                         if($this->eventHandler)
 455                                 $this->eventHandler->event_join($user, $channel, true);
 456                 }
 457                 $modes->parseModes(implode(" ", array_slice($args, 2)));
 458         }
 459
 460         private function recv_join($from, $args) {
 461                 $user = P10_User::getUserByNum($from);
 462                 if($user == null) {
 463                         trigger_error("Server tries to join an user that does not exist or was not found on recv_join.", E_USER_ERROR);
 464                         return;
 465                 }
 466                 $channel = P10_Channel::getChannelByName($args[0]);
 467                 if($channel == null)
 468                         $channel = new P10_Channel($args[0]);
 469                 $channel->joinUser($user);
 470                 if($this->eventHandler)
 471                         $this->eventHandler->event_join($user, $channel, false);
 472         }
 473
 474         private function recv_part($from, $args) {
 475                 $user = P10_User::getUserByNum($from);
 476                 if($user == null) {
 477                         trigger_error("Server tries to part an user that does not exist or was not found on recv_join.", E_USER_ERROR);
 478                         return;
 479                 }
 480                 $channel = P10_Channel::getChannelByName($args[0]);
 481                 if($channel == null)
 482                         $channel = new P10_Channel($args[0]);
 483                 if($this->eventHandler)
 484                         $this->eventHandler->event_part($user, $channel, $args[1]);
 485                 $channel->partUser($user);
 486         }
 487
 488         private function recv_kick($from, $args) {
 489                 $user = P10_User::getUserByNum($from);
 490                 if($user == null) {
 491                         trigger_error("An unknown user tries to kick another user on recv_kick.", E_USER_ERROR);
 492                         return;
 493                 }
 494                 $channel = P10_Channel::getChannelByName($args[0]);
 495                 if($channel == null)
 496                         $channel = new P10_Channel($args[0]);
 497                 $target = P10_User::getUserByNum($args[1]);
 498                 if($target == null) {
 499                         trigger_error("Someone tries to kick an user that does not exist or was not found on recv_kick.", E_USER_ERROR);
 500                         return;
 501                 }
 502                 if($this->eventHandler)
 503                         $this->eventHandler->event_kick($user, $target, $channel, $args[1]);
 504                 $channel->partUser($user);
 505         }
 506
 507         private function recv_kill($from, $args) {
 508                 $user = P10_User::getUserByNum($args[0]);
 509                 if($user == null) {
 510                         trigger_error("Server tries to kill an user that does not exist or was not found on recv_quit.", E_USER_ERROR);
 511                         return;
 512                 }
 513                 if($this->eventHandler)
 514                         $this->eventHandler->event_quit($user, "Killed (".$args[1].")");
 515                 $user->quit($args[1]);
 516         }
 517
 518         private function recv_privmsg($from, $args) {
 519                 $user = P10_User::getUserByNum($from);
 520                 if($user == null) {
 521                         trigger_error("Server tries to send a privmsg from an user that does not exist or was not found on recv_privmsg.", E_USER_WARNING);
 522                         return;
 523                 }
 524                 if($this->eventHandler) {
 525                         if($args[0][0] == "#") {
 526                                 $channel = P10_Channel::getChannelByName($args[0]);
 527                                 if($channel == null)
 528                                         $channel = new P10_Channel($args[0]);
 529                                 if(strlen($args[1]) > 0 && $args[1][0] == "\001") {
 530                                         //ctcp
 531                                         $args[1] = substr($args[1],1);
 532                                         if($args[1][strlen($args[1])-1] == "\001")
 533                                                 $args[1] = substr($args[1],0,-1);
 534                                         $ctcpexp = explode(" ",$args[1],2);
 535                                         $this->eventHandler->event_chanctcp($user, $channel, strtoupper($ctcpexp[0]), (count($ctcpexp) > 1 ? $ctcpexp[1] : null));
 536                                 } else
 537                                         $this->eventHandler->event_chanmessage($user, $channel, $args[1]);
 538                         } else if($args[0][0] == "$") {
 539                                 //"multicast"
 540                                 $this->eventHandler->event_privmessage($user, NULL, $args[1]);
 541                         } else {
 542                                 $targetUser = P10_User::getUserByNum($args[0]);
 543                                 if($targetUser == null) {
 544                                         trigger_error("Server tries to send a privmsg to an user that does not exist or was not found on recv_privmsg.", E_USER_WARNING);
 545                                         return;
 546                                 }
 547                                 if(strlen($args[1]) > 0 && $args[1][0] == "\001") {
 548                                         //ctcp
 549                                         $args[1] = substr($args[1],1);
 550                                         if($args[1][strlen($args[1])-1] == "\001")
 551                                                 $args[1] = substr($args[1],0,-1);
 552                                         $ctcpexp = explode(" ",$args[1],2);
 553                                         $this->eventHandler->event_privctcp($user, $targetUser, strtoupper($ctcpexp[0]), (count($ctcpexp) > 1 ? $ctcpexp[1] : null));
 554                                 } else
 555                                         $this->eventHandler->event_privmessage($user, $targetUser, $args[1]);
 556                         }
 557                 }
 558         }
 559
 560         private function recv_notice($from, $args) {
 561                 $user = P10_User::getUserByNum($from);
 562                 if($user == null) {
 563                         trigger_error("Server tries to send a notice from an user that does not exist or was not found on recv_notice.", E_USER_WARNING);
 564                         return;
 565                 }
 566                 if($this->eventHandler) {
 567                         if($args[0][0] == "#") {
 568                                 $channel = P10_Channel::getChannelByName($args[0]);
 569                                 if($channel == null)
 570                                         $channel = new P10_Channel($args[0]);
 571                                 if(strlen($args[1]) > 0 && $args[1][0] == "\001") {
 572                                         //ctcp
 573                                         $args[1] = substr($args[1],1);
 574                                         if($args[1][strlen($args[1])-1] == "\001")
 575                                                 $args[1] = substr($args[1],0,-1);
 576                                         $ctcpexp = explode(" ",$args[1],2);
 577                                         $this->eventHandler->event_chanctcpreply($user, $channel, strtoupper($ctcpexp[0]), (count($ctcpexp) > 1 ? $ctcpexp[1] : null));
 578                                 } else
 579                                         $this->eventHandler->event_channotice($user, $channel, $args[1]);
 580                         } else if($args[0][0] == "$") {
 581                                 //"multicast"
 582                                 $this->eventHandler->event_privnotice($user, NULL, $args[1]);
 583                         } else {
 584                                 $targetUser = P10_User::getUserByNum($args[0]);
 585                                 if($targetUser == null) {
 586                                         trigger_error("Server tries to send a notice to an user that does not exist or was not found on recv_notice.", E_USER_WARNING);
 587                                         return;
 588                                 }
 589                                 if(strlen($args[1]) > 0 && $args[1][0] == "\001") {
 590                                         //ctcp
 591                                         $args[1] = substr($args[1],1);
 592                                         if($args[1][strlen($args[1])-1] == "\001")
 593                                                 $args[1] = substr($args[1],0,-1);
 594                                         $ctcpexp = explode(" ",$args[1],2);
 595                                         $this->eventHandler->event_privctcpreply($user, $targetUser, strtoupper($ctcpexp[0]), (count($ctcpexp) > 1 ? $ctcpexp[1] : null));
 596                                 } else
 597                                         $this->eventHandler->event_privnotice($user, $targetUser, $args[1]);
 598                         }
 599                 }
 600         }
 601
 602         private function recv_whois($from, $args) {
 603                 /* [get] ACAAF W AX :NetworkServ */
 604                 $fromUser = P10_User::getUserByNum($from);
 605                 if($fromUser == null) {
 606                         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);
 607                         return;
 608                 }
 609                 $users=explode(",",$args[1]);
 610                 foreach($users as $nick) {
 611                         $user = P10_User::getUserByNick($nick);
 612                         if(!$user) {
 613                                 $this->send("401", $from, $nick);
 614                                 continue;
 615                         }
 616                         $nick = $user->getNick();
 617                         $ident = $user->getIdent();
 618                         $hostmask = $user->getHost();
 619                         $modes = $user->getModes();
 620                         if($modes->hasMode('x')) {
 621                                 if(($fakehost = $modes->hasMode('f'))) {
 622                                         $hostmask = $fakehost;
 623                                 } elseif(($account = $modes->hasMode('r'))) {
 624                                         $hostmask = $account.".".$this->getSetting("his_usermask");
 625                                 }
 626                         }
 627                         $realname = $user->getRealname();
 628                         $this->send("311", $from , $nick, $ident, $hostmask, $realname);
 629                         if(((!$modes->hasMode('n') && !$modes->hasMode('k')) || $from == $user->getNumeric()) && count($user->getChannels()) != 0) {
 630                                 $channels = "";
 631                                 foreach($user->getChannels() as $channel) {
 632                                         $cmodes = $channel->getModes();
 633                                         $privs = $channel->getUserPrivs($user);
 634                                         if($cmodes->hasMode("s") && !$fromUser->isOnChannel($channel) && $from != $user->getNumeric()) continue;
 635                                         if($cmodes->hasMode("u") && ($privs & (P10_Channel::USERPRIV_OPED | P10_Channel::USERPRIV_VOICE)) == 0 && $from != $user->getNumeric()) continue;
 636                                         $chanstr = ($channels == "" ? "" : " ");
 637                                         $prefix = "";
 638                                         if(($privs & P10_Channel::USERPRIV_OPED)) {
 639                                                 $prefix = "@";
 640                                         } else if(($privs & P10_Channel::USERPRIV_VOICE)) {
 641                                                 $prefix = "+";
 642                                         }
 643                                         $chanstr .= $prefix.$channel->getName();
 644                                         if(strlen($channels) + strlen($chanstr) > 450) {
 645                                                 $this->send("319", $from, $nick, $channels);
 646                                                 $channels = $prefix.$channel->getName();
 647                                         }
 648                                 }
 649                                 if($channels != "") {
 650                                         $this->send("319", $from, $nick, $channels);
 651                                 }
 652                         }
 653                         if($fromUser->getModes()->hasMode("o") || $from == $user->getNumeric() || !$this->getSetting("his_name")) {
 654                                 $this->send("312", $from, $nick, $user->getServer()->getName(), $user->getServer()->getDescription());
 655                         } else {
 656                                 $this->send("312", $from, $nick, $this->getSetting("his_name"), $this->getSetting("his_desc"));
 657                         }
 658                         if($modes->hasMode("o") && (!$modes->hasMode("H") || $fromUser->getModes()->hasMode("o"))) {
 659                                 if($modes->hasMode("S")) {
 660                                         if($modes->hasMode("D"))
 661                                                 $this->send("313", $from, $nick, "is a Network Service");
 662                                         else
 663                                                 $this->send("313", $from, $nick, "is an illegal Network Service - HACKER!");
 664                                 } else
 665                                         $this->send("313", $from, $nick, "is an IRC Operator");
 666                         }
 667                         if(($auth = $modes->hasMode("r"))) {
 668                                 $this->send("330", $from, $nick, $auth);
 669                         }
 670                 }
 671                 $this->send("318", $from, $args[1]);
 672         }
 673
 674         private function recv_away($from, $args) {
 675                 $user = P10_User::getUserByNum($from);
 676                 if($user == null) {
 677                         trigger_error("Server tries to send an away command from an user that does not exist or was not found on recv_away.", E_USER_ERROR);
 678                         return;
 679                 }
 680                 if(count($args) > 0) {
 681                         $user->setAway($args[0]);
 682                         if($this->eventHandler)
 683                                 $this->eventHandler->event_away($user, $args[0]);
 684                 } else {
 685                         $user->setAway(null);
 686                         if($this->eventHandler)
 687                                 $this->eventHandler->event_away($user, null);
 688                 }
 689         }
 690
 691         private function recv_mode($from, $args) {
 692                 $user = P10_User::getUserByNum($from);
 693                 if($user == null) {
 694                         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);
 695                         return;
 696                 }
 697                 $modes = implode(" ",array_slice($args,1));
 698                 if($args[0][0] == "#") {
 699                         $channel = P10_Channel::getChannelByName($args[0]);
 700                         if($channel == null)
 701                                 $channel = new P10_Channel($args[0]);
 702                         $channel->getModes()->setModes($modes);
 703                         if($this->eventHandler)
 704                                 $this->eventHandler->event_chanmode($user, $channel, $modes);
 705                 } else {
 706                         $targetUser = P10_User::getUserByNick($args[0]);
 707                         if($targetUser == null) {
 708                                 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);
 709                                 return;
 710                         }
 711                         $targetUser->getModes()->setModes($modes);
 712                         if($this->eventHandler)
 713                                 $this->eventHandler->event_usermode($targetUser, $modes);
 714                 }
 715         }
 716
 717         /********************************************************************************************
 718          *                                     SERVER FUNCTIONS                                     *
 719          ********************************************************************************************/
 720
 721         private function burst() {
 722                 foreach($this->server->getUsers() as $user) {
 723                         $nick = $user->getNick();
 724                         $connect_time = $user->getConnectTime();
 725                         $ident = $user->getIdent();
 726                         $host = $user->getHost();
 727                         $modes = $user->getModes()->getModeString();
 728                         $ip = $user->getIP()->getNumeric();
 729                         $numeric = $user->getNumeric();
 730                         $realname = $user->getRealname();
 731                         $this->send("N", $nick, $connect_time, $ident, $host, $modes, $ip, $numeric, $realname);
 732                 }
 733                 foreach(P10_Channel::getChannels() as $channel) {
 734                         $sorted_users = array('ov' => array(), 'o' => array(), 'v' => array(), '-' => array());
 735                         $local_users = false;
 736                         foreach($channel->getUsers() as $user) {
 737                                 if(substr($user->getNumeric(), 0, 2) != $this->server->getNumeric()) continue; //skip users that are not on the local server
 738                                 $privs = $channel->getUserPrivs($user);
 739                                 $strPrivs = "";
 740                                 if(($privs & P10_Channel::USERPRIV_OPED)) $strPrivs .= "o";
 741                                 if(($privs & P10_Channel::USERPRIV_VOICE)) $strPrivs .= "v";
 742                                 if($strPrivs == "") $strPrivs = "-";
 743                                 $local_users = true;
 744                                 $sorted_users[$strPrivs][] = $user;
 745                         }
 746                         if(!$local_users) continue;
 747                         $userStr = "";
 748                         foreach($sorted_users['-'] as $user) {
 749                                 if($userStr != "") $userStr.=",";
 750                                 $userStr .= $user->getNumeric();
 751                         }
 752                         foreach($sorted_users['ov'] as $i => $user) {
 753                                 if($userStr != "") $userStr.=",";
 754                                 $userStr .= $user->getNumeric();
 755                                 if($i == 0) $userStr .= ":ov";
 756                         }
 757                         foreach($sorted_users['o'] as $i => $user) {
 758                                 if($userStr != "") $userStr.=",";
 759                                 $userStr .= $user->getNumeric();
 760                                 if($i == 0) $userStr .= ":o";
 761                         }
 762                         foreach($sorted_users['v'] as $i => $user) {
 763                                 if($userStr != "") $userStr.=",";
 764                                 $userStr .= $user->getNumeric();
 765                                 if($i == 0) $userStr .= ":v";
 766                         }
 767                         $banString = "";
 768                         //TODO: Build ban String
 769                         $burstString = "";
 770                         $modeString = $channel->getModes()->getModeString();
 771                         if($modeString != "+") {
 772                                 $burstString .= $modeString;
 773                         }
 774                         if($userStr != "") {
 775                                 if($burstString != "") $burstString .= " ";
 776                                 $burstString .= $userStr;
 777                         }
 778                         if($banString != "") {
 779                                 if($burstString != "") $burstString .= " ";
 780                                 $burstString .= ":%".$banString;
 781                         }
 782                         $this->send("B", $channel->getName(), $channel->getCreateTime(), $burstString);
 783                 }
 784                 $this->send("EB");
 785         }
 786
 787         /********************************************************************************************
 788          *                                    LOCAL USER FUNCTIONS                                  *
 789          ********************************************************************************************/
 790
 791         public function addUser($nick, $ident, $host, $ip, $modes, $realname) {
 792                 $user = P10_User::getUserByNick($nick);
 793                 if($user != null) return ERR_NICK_IN_USE;
 794                 $numeric = substr($this->server->getNumeric(),0,2).Numerics::intToNum($this->last_local_numeric, 3);
 795                 while(P10_User::getUserByNum($numeric)) {
 796                         $this->last_local_numeric++;
 797                         $numeric = substr($this->server->getNumeric(),0,2).Numerics::intToNum($this->last_local_numeric, 3);
 798                 }
 799                 $this->last_local_numeric++;
 800                 $modes = new P10_UserModeSet($modes);
 801                 $ip = new IPAddr($ip);
 802                 $user = new P10_User($nick, $numeric, $this->server, time(), $ident, $host, $ip, $realname, $modes);
 803                 if(($this->flags & self::FLAG_CONNECTED)) {
 804                         $ip = $user->getIP()->getNumeric();
 805                         $this->send("N", $nick, $user->getConnectTime(), $ident, $host, $user->getModes()->getModeString(), $ip, $numeric, $realname);
 806                 }
 807                 return $user;
 808         }
 809
 810         public function delUser($user, $reason) {
 811                 if(!is_a($user, "P10_User")) return ERR_INVALID_USER;
 812                 if($user->getServer() === $this->server) {
 813                         //local user (QUIT)
 814                         $user->quit($reason);
 815                         if(($this->flags & self::FLAG_CONNECTED))
 816                                 $this->send("Q", $user->getNumeric(), $reason);
 817                 } else {
 818                         //remote user (KILL)
 819                         if(!($this->flags & self::FLAG_CONNECTED))
 820                                 return ERR_NOT_CONNECTED;
 821                         if($this->eventHandler)
 822                                 $this->eventHandler->event_quit($user, "Killed (".$reason.")");
 823                         $user->quit("Killed (".$reason.")");
 824                         $name = ($this->getSetting('his_name') ? $this->getSetting('his_name') : $this->getSetting('name'));
 825
 826                         $this->send("D", $user->getNumeric(), $name, $reason);
 827                 }
 828         }
 829
 830         public function join($user, $chanName, $privs = 0) {
 831                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 832                         return ERR_INVALID_USER;
 833                 if($chanName[0] != "#")
 834                         return ERR_INVALID_CHANNAME;
 835                 $channel = P10_Channel::getChannelByName($chanName);
 836                 if($channel == null)
 837                         $channel = new P10_Channel($chanName);
 838                 $channel->joinUser($user);
 839                 if(($this->flags & self::FLAG_CONNECTED))
 840                         $this->send("J", $user->getNumeric(), $chanName, time(), 0);
 841                 if($privs != 0) {
 842                         $channel->setUserPrivs($user, $privs);
 843                         if(($this->flags & self::FLAG_CONNECTED)) {
 844                                 $modestr = "+".(($privs & P10_Channel::USERPRIV_OPED) ? "o" : "").(($privs & P10_Channel::USERPRIV_VOICE) ? "v" : "");
 845                                 $modestr .= (($privs & P10_Channel::USERPRIV_OPED) ? " ".$user->getNumeric() : "");
 846                                 $modestr .= (($privs & P10_Channel::USERPRIV_VOICE) ? " ".$user->getNumeric() : "");
 847                                 $this->send("OM", $user->getNumeric(), $chanName, $modestr);
 848                         }
 849                 }
 850                 if($this->eventHandler)
 851                         $this->eventHandler->event_join($user, $channel, false);
 852         }
 853
 854         public function part($user, $chanName, $reason) {
 855                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 856                         return ERR_INVALID_USER;
 857                 if(!((is_string($chanName) && $chanName[0] == "#") || is_a($chanName, "P10_Channel")))
 858                         return ERR_INVALID_CHANNAME;
 859                 if(is_a($chanName, "P10_Channel"))
 860                         $channel = $chanName;
 861                 else
 862                         $channel = P10_Channel::getChannelByName($chanName);
 863                 if($channel == null)
 864                         $channel = new P10_Channel($chanName);
 865                 if(!$user->isOnChannel($channel))
 866                         return ERR_NOT_ON_CHANNEL;
 867                 if($this->eventHandler)
 868                         $this->eventHandler->event_part($user, $channel, $reason);
 869                 $channel->partUser($user, $reason);
 870                 if(($this->flags & self::FLAG_CONNECTED))
 871                         $this->send("L", $user->getNumeric(), $chanName, $reason);
 872         }
 873
 874         public function kick($user, $target, $chanName, $reason) {
 875                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 876                         return ERR_INVALID_USER;
 877                 if(!is_a($target, "P10_User"))
 878                         return ERR_INVALID_USER;
 879                 if(!((is_string($chanName) && $chanName[0] == "#") || is_a($chanName, "P10_Channel")))
 880                         return ERR_INVALID_CHANNAME;
 881                 if(is_a($chanName, "P10_Channel"))
 882                         $channel = $chanName;
 883                 else
 884                         $channel = P10_Channel::getChannelByName($chanName);
 885                 if($channel == null)
 886                         $channel = new P10_Channel($chanName);
 887                 if(!$target->isOnChannel($channel))
 888                         return ERR_NOT_ON_CHANNEL;
 889                 if($this->eventHandler)
 890                         $this->eventHandler->event_kick($user, $target, $channel, $reason);
 891                 $channel->partUser($target, $reason);
 892                 if(($this->flags & self::FLAG_CONNECTED))
 893                         $this->send("K", $user->getNumeric(), $chanName, $target->getNumeric(), $reason);
 894         }
 895
 896         public function privmsg($user, $target, $message) {
 897                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 898                         return ERR_INVALID_USER;
 899                 if(!is_a($target, "P10_User") && !is_a($target, "P10_Channel") && !(is_string($target) && ($target[0] == "#" || P10_User::getUserByNick($target))))
 900                         return ERR_INVALID_USER;
 901                 if(is_a($target, "P10_Channel"))
 902                         $targetStr = $target->getName();
 903                 else if(is_a($target, "P10_User"))
 904                         $targetStr = $target->getNumeric();
 905                 else if($target[0] == "#")
 906                         $targetStr = $target;
 907                 else
 908                         $targetStr = P10_User::getUserByNick($target)->getNumeric();
 909
 910                 if($this->eventHandler) {
 911                         if($targetStr[0] == "#") {
 912                                 $channel = P10_Channel::getChannelByName($targetStr);
 913                                 if($channel == null)
 914                                         $channel = new P10_Channel($targetStr);
 915                                 $this->eventHandler->event_chanmessage($user, $channel, $message);
 916                         } else {
 917                                 $targetUser = P10_User::getUserByNum($targetStr);
 918                                 $this->eventHandler->event_privmessage($user, $targetUser, $message);
 919                         }
 920                 }
 921                 if(($this->flags & self::FLAG_CONNECTED))
 922                         $this->send("P", $user->getNumeric(), $targetStr, $message);
 923         }
 924
 925         public function notice($user, $target, $message) {
 926                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 927                         return ERR_INVALID_USER;
 928                 if(!is_a($target, "P10_User") && !is_a($target, "P10_Channel") && !(is_string($target) && ($target[0] == "#" || P10_User::getUserByNick($target))))
 929                         return ERR_INVALID_USER;
 930                 if(is_a($target, "P10_Channel"))
 931                         $targetStr = $target->getName();
 932                 else if(is_a($target, "P10_User"))
 933                         $targetStr = $target->getNumeric();
 934                 else if($target[0] == "#")
 935                         $targetStr = $target;
 936                 else
 937                         $targetStr = P10_User::getUserByNick($target)->getNumeric();
 938
 939                 if($this->eventHandler) {
 940                         if($targetStr[0] == "#") {
 941                                 $channel = P10_Channel::getChannelByName($targetStr);
 942                                 if($channel == null)
 943                                         $channel = new P10_Channel($targetStr);
 944                                 $this->eventHandler->event_channotice($user, $channel, $message);
 945                         } else {
 946                                 $targetUser = P10_User::getUserByNum($targetStr);
 947                                 $this->eventHandler->event_privnotice($user, $targetUser, $message);
 948                         }
 949                 }
 950                 if(($this->flags & self::FLAG_CONNECTED))
 951                         $this->send("O", $user->getNumeric(), $targetStr, $message);
 952         }
 953
 954         public function mode($user, $target, $modes, $force = false) {
 955                 if(!is_a($user, "P10_User") || !($user->getServer() === $this->server))
 956                         return ERR_INVALID_USER;
 957                 if(!is_a($target, "P10_User") && !is_a($target, "P10_Channel") && !(is_string($target) && ($target[0] == "#" || P10_User::getUserByNick($target))))
 958                         return ERR_INVALID_USER;
 959                 if(is_a($target, "P10_Channel"))
 960                         $targetStr = $target->getName();
 961                 else if(is_a($target, "P10_User"))
 962                         $targetStr = $target->getNumeric();
 963                 else if($target[0] == "#")
 964                         $targetStr = $target;
 965                 else
 966                         $targetStr = P10_User::getUserByNick($target)->getNumeric();
 967
 968                 if($targetStr[0] == "#") {
 969                         $channel = P10_Channel::getChannelByName($targetStr);
 970                         if($channel == null)
 971                                 $channel = new P10_Channel($targetStr);
 972                         $modes = $channel->getModes()->setModes($modes, true);
 973                         if(($this->flags & self::FLAG_CONNECTED))
 974                                 $this->send(($force ? "OM" : "M"), $user->getNumeric(), $targetStr, $modes);
 975                         if($this->eventHandler)
 976                                 $this->eventHandler->event_chanmode(($force ? $this->server : $user), $channel, $modes);
 977                 } else {
 978                         $targetUser = P10_User::getUserByNum($targetStr);
 979                         if($targetUser->getServer() === $this->server) {
 980                                 //just do it :D
 981                                 $modes = $targetUser->getModes()->setModes($modes, true);
 982                                 if(($this->flags & self::FLAG_CONNECTED))
 983                                         $this->send("M", $targetUser->getNumeric(), $targetUser->getNick(), $modes);
 984                                 if($this->eventHandler)
 985                                         $this->eventHandler->event_usermode($targetUser, $modes);
 986                         } else {
 987                                 //SVSMODE
 988                                 if(($this->flags & self::FLAG_CONNECTED))
 989                                         $this->send("SM", $user->getNumeric(), $targetUser->getNumeric(), $modes);
 990                         }
 991                 }
 992         }
 993
 994         public function ctcp($user, $target, $command, $text) {
 995                 return $this->privmsg($user, $target, "\001".strtoupper($command)." ".$text."\001");
 996         }
 997
 998         public function ctcp_reply($user, $target, $command, $text) {
 999                 return $this->notice($user, $target, "\001".strtoupper($command)." ".$text."\001");
1000         }
1001
1002 }
1003
1004 ?>