Uplink/P10_ModeSets.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/P10_ModeSets.class.php
  24  *
  25  * classes to parse and store channel or user modes
  26  *
  27  */
  28
  29 class P10_ChannelModeSet {
  30         const MODE_TYPE_A = 1, MODE_TYPE_B = 2, MODE_TYPE_C = 3, MODE_TYPE_D = 4;
  31         /** http://www.irc.org/tech_docs/draft-brocklesby-irc-isupport-03.txt
  32          * Section 3.3 CHANMODES
  33          *
  34          * Type A: Modes that add or remove an address to or from a list.
  35          *   These modes always take a parameter when sent by the server to a
  36          *   client; when sent by a client, they may be specified without a
  37          *   parameter, which requests the server to display the current
  38          *   contents of the corresponding list on the channel to the client.
  39          *
  40          * Type B: Modes that change a setting on the channel.  These modes
  41          *   always take a parameter.
  42          *
  43          * Type C: Modes that change a setting on the channel. These modes
  44          *   take a parameter only when set; the parameter is absent when the
  45          *   mode is removed both in the client's and server's MODE command.
  46          *
  47          * Type D: Modes that change a setting on the channel. These modes
  48          *   never take a parameter.
  49          **/
  50         private static $modes = array(
  51                 "b" => self::MODE_TYPE_A,
  52                 "k" => self::MODE_TYPE_B,
  53                 "a" => self::MODE_TYPE_C,
  54                 "l" => self::MODE_TYPE_C,
  55                 "f" => self::MODE_TYPE_C,
  56                 "F" => self::MODE_TYPE_C,
  57                 "c" => self::MODE_TYPE_D,
  58                 "C" => self::MODE_TYPE_D,
  59                 "i" => self::MODE_TYPE_D,
  60                 "m" => self::MODE_TYPE_D,
  61                 "M" => self::MODE_TYPE_D,
  62                 "n" => self::MODE_TYPE_D,
  63                 "N" => self::MODE_TYPE_D,
  64                 "p" => self::MODE_TYPE_D,
  65                 "r" => self::MODE_TYPE_D,
  66                 "s" => self::MODE_TYPE_D,
  67                 "t" => self::MODE_TYPE_D,
  68                 "u" => self::MODE_TYPE_D,
  69                 "D" => self::MODE_TYPE_D,
  70                 "d" => self::MODE_TYPE_D,
  71                 "R" => self::MODE_TYPE_D,
  72                 "z" => self::MODE_TYPE_D,
  73
  74                 //special behavior
  75                 "o" => self::MODE_TYPE_B,
  76                 "v" => self::MODE_TYPE_B
  77         );
  78         private static $modevalues = null;
  79         private $modeflags = 0;
  80         private $modeparams = array();
  81         private $channel;
  82
  83         public function __construct($channel) {
  84                 if(self::$modevalues == null) {
  85                         //build modevalues array
  86                         $flag = 1;
  87                         self::$modevalues = array();
  88                         foreach(self::$modes as $mode => $type) {
  89                                 self::$modevalues[$mode] = $flag;
  90                                 $flag <<= 1;
  91                         }
  92                 }
  93                 $this->channel = $channel;
  94         }
  95
  96         public function parseModes($modes) {
  97                 $args = explode(" ",$modes);
  98                 $c = 1;
  99                 for($i = 0; $i < strlen($args[0]); $i++) {
 100                         $mode = $args[0][$i];
 101                         if($mode == "+") continue;
 102                         if($mode == "-") { //we have no - flag on parseModes???
 103                                 trigger_error("unexpected MODE_DEL (-) on parseModes (".$modes.").", E_USER_WARNING);
 104                                 break;
 105                         }
 106                         if(!array_key_exists($mode, self::$modevalues)) {
 107                                 trigger_error("unknown mode (".$mode.") on parseModes (".$modes.").", E_USER_WARNING);
 108                                 continue;
 109                         }
 110                         $flag = self::$modevalues[$mode];
 111                         if(self::$modevalues[$mode] == self::MODE_TYPE_A) continue; //we shouldn't get such a mode on parseModes
 112                         $this->modeflags |= $flag;
 113                         if(self::$modevalues[$mode] == self::MODE_TYPE_B || self::$modevalues[$mode] == self::MODE_TYPE_C) {
 114                                 $this->modeparams[$mode] = $args[$c++];
 115                         }
 116                 }
 117                 return $c-1;
 118         }
 119
 120         public function setModes($modes, $returndiff = false) {
 121                 $args = explode(" ",$modes);
 122                 $c = 1;
 123                 $add = true;
 124                 $modestradd = "+";
 125                 $paramstradd = "";
 126                 $modestrdel = "-";
 127                 $paramstrdel = "";
 128                 for($i = 0; $i < strlen($args[0]); $i++) {
 129                         $mode = $args[0][$i];
 130                         if($mode == "+") {
 131                                 $add = true;
 132                                 continue;
 133                         }
 134                         if($mode == "-") {
 135                                 $add = false;
 136                                 continue;
 137                         }
 138                         if(!array_key_exists($mode, self::$modevalues)) {
 139                                 trigger_error("unknown mode (".$mode.") on setModes (".$modes.").", E_USER_WARNING);
 140                                 continue;
 141                         }
 142                         if($mode == "o" || $mode == "v") {
 143                                 if($this->setPrivs($add, $mode, $args[$c++])) {
 144                                         if($returndiff && $add) {
 145                                                 $modestradd .= $mode;
 146                                                 $paramstradd .= " ".$args[$c-1];
 147                                         } else if($returndiff && !$add) {
 148                                                 $modestrdel .= $mode;
 149                                                 $paramstrdel .= " ".$args[$c-1];
 150                                         }
 151                                 }
 152                                 continue;
 153                         }
 154                         $flag = self::$modevalues[$mode];
 155                         if($add) {
 156                                 if($returndiff && !($this->modeflags & $flag)) {
 157                                         $modestradd .= $mode;
 158                                         if(self::$modevalues[$mode] == self::MODE_TYPE_B || self::$modevalues[$mode] == self::MODE_TYPE_C) {
 159                                                 $paramstradd .= " ".$args[$c];
 160                                         }
 161                                 }
 162                                 $this->modeflags |= $flag;
 163                                 if(self::$modevalues[$mode] == self::MODE_TYPE_B || self::$modevalues[$mode] == self::MODE_TYPE_C) {
 164                                         $this->modeparams[$mode] = $args[$c++];
 165                                 }
 166                         } else {
 167                                 if($returndiff && ($this->modeflags & $flag)) {
 168                                         $modestrdel .= $mode;
 169                                         if(self::$modevalues[$mode] == self::MODE_TYPE_C) {
 170                                                 $paramstrdel .= " ".$args[$c];
 171                                         }
 172                                 }
 173                                 $this->modeflags &= ~$flag;
 174                                 if(self::$modevalues[$mode] == self::MODE_TYPE_B || self::$modevalues[$mode] == self::MODE_TYPE_C) {
 175                                         unset($this->modeparams[$mode]);
 176                                 }
 177                                 if(self::$modevalues[$mode] == self::MODE_TYPE_C) $c++;
 178                         }
 179                 }
 180                 if($returndiff) {
 181                         $modediff = ($modestradd == "+" ? "" : $modestradd);
 182                         $modediff .= ($modestrdel == "-" ? "" : $modestrdel);
 183                         $modediff .= $paramstradd.$paramstrdel;
 184                         return $modediff;
 185                 }
 186         }
 187
 188         private function setPrivs($add, $mode, $user) {
 189                 $user = P10_User::getUserByNum($user);
 190                 if($user == null) {
 191                         trigger_error("Tried to set privs on a User that does not exist.", E_USER_ERROR);
 192                         return;
 193                 }
 194                 $privs = $this->channel->getUserPrivs($user);
 195                 $privFlag = 0;
 196                 if($mode == "o") $privFlag = P10_Channel::USERPRIV_OPED;
 197                 if($mode == "v") $privFlag = P10_Channel::USERPRIV_VOICE;
 198                 if(!($add xor ($privs & $privFlag)))
 199                         return false;
 200                 if($add) $privs |= $privFlag;
 201                 else $privs &= ~$privFlag;
 202                 $this->channel->setUserPrivs($user, $privs);
 203                 return true;
 204
 205         }
 206
 207         public function getModeString() {
 208                 $modestr = "+";
 209                 $paramstr = "";
 210                 foreach(self::$modevalues as $mode => $flag) {
 211                         if(($this->modeflags & $flag)) {
 212                                 $modestr .= $mode;
 213                                 if(self::$modevalues[$mode] == self::MODE_TYPE_B || self::$modevalues[$mode] == self::MODE_TYPE_C) {
 214                                         $paramstr .= " ".$this->modeparams[$mode];
 215                                 }
 216                         }
 217                 }
 218                 return $modestr.$paramstr;
 219         }
 220
 221         public function hasMode($mode) {
 222                 if(!array_key_exists($mode, self::$modevalues)) {
 223                         trigger_error("unknown mode (".$mode.") on setModes (".$modes.").", E_USER_WARNING);
 224                         continue;
 225                 }
 226                 $flag = self::$modevalues[$mode];
 227                 return ($this->modeflags & $flag);
 228         }
 229
 230 }
 231
 232 class P10_UserModeSet {
 233         const MODE_WITHOUT_PARAMETER = 1, MODE_WITH_PARAMETER = 2;
 234         private static $modes = array(
 235                 "o" => self::MODE_WITHOUT_PARAMETER,
 236                 "O" => self::MODE_WITHOUT_PARAMETER,
 237                 "i" => self::MODE_WITHOUT_PARAMETER,
 238                 "w" => self::MODE_WITHOUT_PARAMETER,
 239                 "s" => self::MODE_WITHOUT_PARAMETER,
 240                 "d" => self::MODE_WITHOUT_PARAMETER,
 241                 "k" => self::MODE_WITHOUT_PARAMETER,
 242                 "g" => self::MODE_WITH_PARAMETER,
 243                 "r" => self::MODE_WITH_PARAMETER,
 244                 "f" => self::MODE_WITH_PARAMETER,
 245                 "n" => self::MODE_WITHOUT_PARAMETER,
 246                 "I" => self::MODE_WITHOUT_PARAMETER,
 247                 "X" => self::MODE_WITHOUT_PARAMETER,
 248                 "S" => self::MODE_WITHOUT_PARAMETER,
 249                 "H" => self::MODE_WITHOUT_PARAMETER,
 250                 "c" => self::MODE_WITHOUT_PARAMETER,
 251                 "W" => self::MODE_WITHOUT_PARAMETER,
 252                 "t" => self::MODE_WITHOUT_PARAMETER,
 253                 "D" => self::MODE_WITHOUT_PARAMETER,
 254                 "x" => self::MODE_WITHOUT_PARAMETER
 255         );
 256         private static $modevalues = null;
 257         private $modeflags = 0;
 258         private $modeparams = array();
 259
 260         public function __construct($modes) {
 261                 if(self::$modevalues == null) {
 262                         //build modevalues array
 263                         $flag = 1;
 264                         self::$modevalues = array();
 265                         foreach(self::$modes as $mode => $type) {
 266                                 self::$modevalues[$mode] = $flag;
 267                                 $flag <<= 1;
 268                         }
 269                 }
 270                 $this->parseModes($modes);
 271         }
 272
 273         public function parseModes($modes) {
 274                 $args = explode(" ",$modes);
 275                 $c = 1;
 276                 for($i = 0; $i < strlen($args[0]); $i++) {
 277                         $mode = $args[0][$i];
 278                         if($mode == "+") continue;
 279                         if($mode == "-") { //we have no - flag on parseModes???
 280                                 trigger_error("unexpected MODE_DEL (-) on parseModes (".$modes.").", E_USER_WARNING);
 281                                 break;
 282                         }
 283                         if(!array_key_exists($mode, self::$modevalues)) {
 284                                 trigger_error("unknown mode (".$mode.") on parseModes (".$modes.").", E_USER_WARNING);
 285                                 continue;
 286                         }
 287                         $flag = self::$modevalues[$mode];
 288                         $this->modeflags |= $flag;
 289                         if(self::$modevalues[$mode] == self::MODE_WITH_PARAMETER) {
 290                                 $this->modeparams[$mode] = $args[$c++];
 291                         }
 292                 }
 293         }
 294
 295         public function setModes($modes, $returndiff = false) {
 296                 $args = explode(" ",$modes);
 297                 $c = 1;
 298                 $add = true;
 299                 $modestradd = "+";
 300                 $paramstradd = "";
 301                 $modestrdel = "-";
 302                 for($i = 0; $i < strlen($args[0]); $i++) {
 303                         $mode = $args[0][$i];
 304                         if($mode == "+") {
 305                                 $add = true;
 306                                 continue;
 307                         }
 308                         if($mode == "-") {
 309                                 $add = false;
 310                                 continue;
 311                         }
 312                         if(!array_key_exists($mode, self::$modevalues)) {
 313                                 trigger_error("unknown mode (".$mode.") on setModes (".$modes.").", E_USER_WARNING);
 314                                 continue;
 315                         }
 316                         $flag = self::$modevalues[$mode];
 317                         if($add) {
 318                                 if($returndiff && !($this->modeflags & $flag)) {
 319                                         $modestradd .= $mode;
 320                                         if(self::$modevalues[$mode] == self::MODE_WITH_PARAMETER) {
 321                                                 $paramstradd .= " ".$args[$c];
 322                                         }
 323                                 }
 324                                 $this->modeflags |= $flag;
 325                                 if(self::$modevalues[$mode] == self::MODE_WITH_PARAMETER) {
 326                                         $this->modeparams[$mode] = $args[$c++];
 327                                 }
 328                         } else {
 329                                 if($returndiff && ($this->modeflags & $flag)) {
 330                                         $modestrdel .= $mode;
 331                                 }
 332                                 $this->modeflags &= ~$flag;
 333                         }
 334                 }
 335                 if($returndiff) {
 336                         $modediff = ($modestradd == "+" ? "" : $modestradd);
 337                         $modediff .= ($modestrdel == "-" ? "" : $modestrdel);
 338                         $modediff .= $paramstradd;
 339                         return $modediff;
 340                 }
 341         }
 342
 343         public function getModeString() {
 344                 $modestr = "+";
 345                 $paramstr = "";
 346                 foreach(self::$modevalues as $mode => $flag) {
 347                         if(($this->modeflags & $flag)) {
 348                                 $modestr .= $mode;
 349                                 if(self::$modevalues[$mode] == self::MODE_WITH_PARAMETER) {
 350                                         $paramstr .= " ".$this->modeparams[$mode];
 351                                 }
 352                         }
 353                 }
 354                 return $modestr.$paramstr;
 355         }
 356
 357 }
 358
 359 ?>