includes/RecentChange.php

   1 <?php
   2 /**
   3  *
   4  */
   5
   6 /**
   7  * Utility class for creating new RC entries
   8  * mAttribs:
   9  *      rc_id           id of the row in the recentchanges table
  10  *      rc_timestamp    time the entry was made
  11  *      rc_cur_time     timestamp on the cur row
  12  *      rc_namespace    namespace #
  13  *      rc_title        non-prefixed db key
  14  *      rc_type         is new entry, used to determine whether updating is necessary
  15  *      rc_minor        is minor
  16  *      rc_cur_id       page_id of associated page entry
  17  *      rc_user         user id who made the entry
  18  *      rc_user_text    user name who made the entry
  19  *      rc_comment      edit summary
  20  *      rc_this_oldid   rev_id associated with this entry (or zero)
  21  *      rc_last_oldid   rev_id associated with the entry before this one (or zero)
  22  *      rc_bot          is bot, hidden
  23  *      rc_ip           IP address of the user in dotted quad notation
  24  *      rc_new          obsolete, use rc_type==RC_NEW
  25  *      rc_patrolled    boolean whether or not someone has marked this edit as patrolled
  26  *      rc_old_len      integer byte length of the text before the edit
  27  *      rc_new_len      the same after the edit
  28   *     rc_deleted              partial deletion
  29  *      rc_logid                the log_id value for this log entry (or zero)
  30  *  rc_log_type         the log type (or null)
  31  *      rc_log_action   the log action (or null)
  32  *  rc_params           log params
  33  *
  34  * mExtra:
  35  *      prefixedDBkey   prefixed db key, used by external app via msg queue
  36  *      lastTimestamp   timestamp of previous entry, used in WHERE clause during update
  37  *      lang            the interwiki prefix, automatically set in save()
  38  *  oldSize         text size before the change
  39  *  newSize         text size after the change
  40  *
  41  * temporary:           not stored in the database
  42  *      notificationtimestamp
  43  *      numberofWatchingusers
  44  *
  45  * @todo document functions and variables
  46  */
  47 class RecentChange
  48 {
  49         var $mAttribs = array(), $mExtra = array();
  50         var $mTitle = false, $mMovedToTitle = false;
  51         var $numberofWatchingusers = 0 ; # Dummy to prevent error message in SpecialRecentchangeslinked
  52
  53         # Factory methods
  54
  55         public static function newFromRow( $row )
  56         {
  57                 $rc = new RecentChange;
  58                 $rc->loadFromRow( $row );
  59                 return $rc;
  60         }
  61
  62         public static function newFromCurRow( $row, $rc_this_oldid = 0 )
  63         {
  64                 $rc = new RecentChange;
  65                 $rc->loadFromCurRow( $row, $rc_this_oldid );
  66                 $rc->notificationtimestamp = false;
  67                 $rc->numberofWatchingusers = false;
  68                 return $rc;
  69         }
  70
  71         /**
  72          * Obtain the recent change with a given rc_id value
  73          *
  74          * @param $rcid rc_id value to retrieve
  75          * @return RecentChange
  76          */
  77         public static function newFromId( $rcid ) {
  78                 $dbr = wfGetDB( DB_SLAVE );
  79                 $res = $dbr->select( 'recentchanges', '*', array( 'rc_id' => $rcid ), __METHOD__ );
  80                 if( $res && $dbr->numRows( $res ) > 0 ) {
  81                         $row = $dbr->fetchObject( $res );
  82                         $dbr->freeResult( $res );
  83                         return self::newFromRow( $row );
  84                 } else {
  85                         return NULL;
  86                 }
  87         }
  88
  89         /**
  90          * Find the first recent change matching some specific conditions
  91          *
  92          * @param array $conds Array of conditions
  93          * @param mixed $fname Override the method name in profiling/logs
  94          * @return RecentChange
  95          */
  96         public static function newFromConds( $conds, $fname = false ) {
  97                 if( $fname === false )
  98                         $fname = __METHOD__;
  99                 $dbr = wfGetDB( DB_SLAVE );
 100                 $res = $dbr->select(
 101                         'recentchanges',
 102                         '*',
 103                         $conds,
 104                         $fname
 105                 );
 106                 if( $res instanceof ResultWrapper && $res->numRows() > 0 ) {
 107                         $row = $res->fetchObject();
 108                         $res->free();
 109                         return self::newFromRow( $row );
 110                 }
 111                 return null;
 112         }
 113
 114         # Accessors
 115
 116         function setAttribs( $attribs )
 117         {
 118                 $this->mAttribs = $attribs;
 119         }
 120
 121         function setExtra( $extra )
 122         {
 123                 $this->mExtra = $extra;
 124         }
 125
 126         function &getTitle()
 127         {
 128                 if ( $this->mTitle === false ) {
 129                         $this->mTitle = Title::makeTitle( $this->mAttribs['rc_namespace'], $this->mAttribs['rc_title'] );
 130                 }
 131                 return $this->mTitle;
 132         }
 133
 134         function getMovedToTitle()
 135         {
 136                 if ( $this->mMovedToTitle === false ) {
 137                         $this->mMovedToTitle = Title::makeTitle( $this->mAttribs['rc_moved_to_ns'],
 138                                 $this->mAttribs['rc_moved_to_title'] );
 139                 }
 140                 return $this->mMovedToTitle;
 141         }
 142
 143         # Writes the data in this object to the database
 144         function save()
 145         {
 146                 global $wgLocalInterwiki, $wgPutIPinRC, $wgRC2UDPAddress, $wgRC2UDPPort, $wgRC2UDPPrefix;
 147                 $fname = 'RecentChange::save';
 148
 149                 $dbw = wfGetDB( DB_MASTER );
 150                 if ( !is_array($this->mExtra) ) {
 151                         $this->mExtra = array();
 152                 }
 153                 $this->mExtra['lang'] = $wgLocalInterwiki;
 154
 155                 if ( !$wgPutIPinRC ) {
 156                         $this->mAttribs['rc_ip'] = '';
 157                 }
 158
 159                 ## If our database is strict about IP addresses, use NULL instead of an empty string
 160                 if ( $dbw->strictIPs() and $this->mAttribs['rc_ip'] == '' ) {
 161                         unset( $this->mAttribs['rc_ip'] );
 162                 }
 163
 164                 # Fixup database timestamps
 165                 $this->mAttribs['rc_timestamp'] = $dbw->timestamp($this->mAttribs['rc_timestamp']);
 166                 $this->mAttribs['rc_cur_time'] = $dbw->timestamp($this->mAttribs['rc_cur_time']);
 167                 $this->mAttribs['rc_id'] = $dbw->nextSequenceValue( 'rc_rc_id_seq' );
 168
 169                 ## If we are using foreign keys, an entry of 0 for the page_id will fail, so use NULL
 170                 if ( $dbw->cascadingDeletes() and $this->mAttribs['rc_cur_id']==0 ) {
 171                         unset ( $this->mAttribs['rc_cur_id'] );
 172                 }
 173
 174                 # Insert new row
 175                 $dbw->insert( 'recentchanges', $this->mAttribs, $fname );
 176
 177                 # Set the ID
 178                 $this->mAttribs['rc_id'] = $dbw->insertId();
 179
 180                 # Update old rows, if necessary
 181                 if ( $this->mAttribs['rc_type'] == RC_EDIT ) {
 182                         $lastTime = $this->mExtra['lastTimestamp'];
 183                         #$now = $this->mAttribs['rc_timestamp'];
 184                         #$curId = $this->mAttribs['rc_cur_id'];
 185
 186                         # Don't bother looking for entries that have probably
 187                         # been purged, it just locks up the indexes needlessly.
 188                         global $wgRCMaxAge;
 189                         $age = time() - wfTimestamp( TS_UNIX, $lastTime );
 190                         if( $age < $wgRCMaxAge ) {
 191                                 # live hack, will commit once tested - kate
 192                                 # Update rc_this_oldid for the entries which were current
 193                                 #
 194                                 #$oldid = $this->mAttribs['rc_last_oldid'];
 195                                 #$ns = $this->mAttribs['rc_namespace'];
 196                                 #$title = $this->mAttribs['rc_title'];
 197                                 #
 198                                 #$dbw->update( 'recentchanges',
 199                                 #       array( /* SET */
 200                                 #               'rc_this_oldid' => $oldid
 201                                 #       ), array( /* WHERE */
 202                                 #               'rc_namespace' => $ns,
 203                                 #               'rc_title' => $title,
 204                                 #               'rc_timestamp' => $dbw->timestamp( $lastTime )
 205                                 #       ), $fname
 206                                 #);
 207                         }
 208
 209                         # Update rc_cur_time
 210                         #$dbw->update( 'recentchanges', array( 'rc_cur_time' => $now ),
 211                         #       array( 'rc_cur_id' => $curId ), $fname );
 212                 }
 213
 214                 # Notify external application via UDP
 215                 if ( $wgRC2UDPAddress ) {
 216                         $conn = socket_create( AF_INET, SOCK_DGRAM, SOL_UDP );
 217                         if ( $conn ) {
 218                                 $line = $wgRC2UDPPrefix . $this->getIRCLine();
 219                                 socket_sendto( $conn, $line, strlen($line), 0, $wgRC2UDPAddress, $wgRC2UDPPort );
 220                                 socket_close( $conn );
 221                         }
 222                 }
 223
 224                 # E-mail notifications
 225                 global $wgUseEnotif, $wgUser;
 226                 if( $wgUseEnotif ) {
 227                         # FIXME: this would be better as an extension hook
 228                         $enotif = new EmailNotification();
 229                         $title = Title::makeTitle( $this->mAttribs['rc_namespace'], $this->mAttribs['rc_title'] );
 230                         $enotif->notifyOnPageChange( $wgUser, $title,
 231                                 $this->mAttribs['rc_timestamp'],
 232                                 $this->mAttribs['rc_comment'],
 233                                 $this->mAttribs['rc_minor'],
 234                                 $this->mAttribs['rc_last_oldid'] );
 235                 }
 236
 237                 # Notify extensions
 238                 wfRunHooks( 'RecentChange_save', array( &$this ) );
 239         }
 240
 241         /**
 242          * Mark a given change as patrolled
 243          *
 244          * @param mixed $change RecentChange or corresponding rc_id
 245          * @returns integer number of affected rows
 246          */
 247         public static function markPatrolled( $change ) {
 248                 $rcid = $change instanceof RecentChange
 249                         ? $change->mAttribs['rc_id']
 250                         : $change;
 251                 $dbw = wfGetDB( DB_MASTER );
 252                 $dbw->update(
 253                         'recentchanges',
 254                         array(
 255                                 'rc_patrolled' => 1
 256                         ),
 257                         array(
 258                                 'rc_id' => $rcid
 259                         ),
 260                         __METHOD__
 261                 );
 262                 return $dbw->affectedRows();
 263         }
 264
 265         # Makes an entry in the database corresponding to an edit
 266         public static function notifyEdit( $timestamp, &$title, $minor, &$user, $comment,
 267                 $oldId, $lastTimestamp, $bot, $ip = '', $oldSize = 0, $newSize = 0,
 268                 $newId = 0)
 269         {
 270                 if ( !$ip ) {
 271                         $ip = wfGetIP();
 272                         if ( !$ip ) {
 273                                 $ip = '';
 274                         }
 275                 }
 276
 277                 $rc = new RecentChange;
 278                 $rc->mAttribs = array(
 279                         'rc_timestamp'  => $timestamp,
 280                         'rc_cur_time'   => $timestamp,
 281                         'rc_namespace'  => $title->getNamespace(),
 282                         'rc_title'      => $title->getDBkey(),
 283                         'rc_type'       => RC_EDIT,
 284                         'rc_minor'      => $minor ? 1 : 0,
 285                         'rc_cur_id'     => $title->getArticleID(),
 286                         'rc_user'       => $user->getID(),
 287                         'rc_user_text'  => $user->getName(),
 288                         'rc_comment'    => $comment,
 289                         'rc_this_oldid' => $newId,
 290                         'rc_last_oldid' => $oldId,
 291                         'rc_bot'        => $bot ? 1 : 0,
 292                         'rc_moved_to_ns'        => 0,
 293                         'rc_moved_to_title'     => '',
 294                         'rc_ip'         => $ip,
 295                         'rc_patrolled'  => 0,
 296                         'rc_new'        => 0,  # obsolete
 297                         'rc_old_len'    => $oldSize,
 298                         'rc_new_len'    => $newSize,
 299                         'rc_deleted'    => 0,
 300                         'rc_logid'              => 0,
 301                         'rc_log_type'   => null,
 302                         'rc_log_action' => '',
 303                         'rc_params'             => ''
 304                 );
 305
 306                 $rc->mExtra =  array(
 307                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 308                         'lastTimestamp' => $lastTimestamp,
 309                         'oldSize'       => $oldSize,
 310                         'newSize'       => $newSize,
 311                 );
 312                 $rc->save();
 313                 return( $rc->mAttribs['rc_id'] );
 314         }
 315
 316         /**
 317          * Makes an entry in the database corresponding to page creation
 318          * Note: the title object must be loaded with the new id using resetArticleID()
 319          * @todo Document parameters and return
 320          */
 321         public static function notifyNew( $timestamp, &$title, $minor, &$user, $comment, $bot,
 322           $ip='', $size = 0, $newId = 0 )
 323         {
 324                 if ( !$ip ) {
 325                         $ip = wfGetIP();
 326                         if ( !$ip ) {
 327                                 $ip = '';
 328                         }
 329                 }
 330
 331                 $rc = new RecentChange;
 332                 $rc->mAttribs = array(
 333                         'rc_timestamp'      => $timestamp,
 334                         'rc_cur_time'       => $timestamp,
 335                         'rc_namespace'      => $title->getNamespace(),
 336                         'rc_title'          => $title->getDBkey(),
 337                         'rc_type'           => RC_NEW,
 338                         'rc_minor'          => $minor ? 1 : 0,
 339                         'rc_cur_id'         => $title->getArticleID(),
 340                         'rc_user'           => $user->getID(),
 341                         'rc_user_text'      => $user->getName(),
 342                         'rc_comment'        => $comment,
 343                         'rc_this_oldid'     => $newId,
 344                         'rc_last_oldid'     => 0,
 345                         'rc_bot'            => $bot ? 1 : 0,
 346                         'rc_moved_to_ns'    => 0,
 347                         'rc_moved_to_title' => '',
 348                         'rc_ip'             => $ip,
 349                         'rc_patrolled'      => 0,
 350                         'rc_new'                => 1, # obsolete
 351                         'rc_old_len'        => 0,
 352                         'rc_new_len'        => $size,
 353                         'rc_deleted'            => 0,
 354                         'rc_logid'                      => 0,
 355                         'rc_log_type'           => null,
 356                         'rc_log_action'         => '',
 357                         'rc_params'                     => ''
 358                 );
 359
 360                 $rc->mExtra =  array(
 361                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 362                         'lastTimestamp' => 0,
 363                         'oldSize' => 0,
 364                         'newSize' => $size
 365                 );
 366                 $rc->save();
 367                 return( $rc->mAttribs['rc_id'] );
 368         }
 369
 370         # Makes an entry in the database corresponding to a rename
 371         public static function notifyMove( $timestamp, &$oldTitle, &$newTitle, &$user, $comment, $ip='', $overRedir = false )
 372         {
 373                 global $wgRequest;
 374
 375                 if ( !$ip ) {
 376                         $ip = wfGetIP();
 377                         if ( !$ip ) {
 378                                 $ip = '';
 379                         }
 380                 }
 381
 382                 $rc = new RecentChange;
 383                 $rc->mAttribs = array(
 384                         'rc_timestamp'  => $timestamp,
 385                         'rc_cur_time'   => $timestamp,
 386                         'rc_namespace'  => $oldTitle->getNamespace(),
 387                         'rc_title'      => $oldTitle->getDBkey(),
 388                         'rc_type'       => $overRedir ? RC_MOVE_OVER_REDIRECT : RC_MOVE,
 389                         'rc_minor'      => 0,
 390                         'rc_cur_id'     => $oldTitle->getArticleID(),
 391                         'rc_user'       => $user->getID(),
 392                         'rc_user_text'  => $user->getName(),
 393                         'rc_comment'    => $comment,
 394                         'rc_this_oldid' => 0,
 395                         'rc_last_oldid' => 0,
 396                         'rc_bot'        => $user->isAllowed( 'bot' ) ? $wgRequest->getBool( 'bot' , true ) : 0,
 397                         'rc_moved_to_ns'        => $newTitle->getNamespace(),
 398                         'rc_moved_to_title'     => $newTitle->getDBkey(),
 399                         'rc_ip'         => $ip,
 400                         'rc_new'        => 0, # obsolete
 401                         'rc_patrolled'  => 1,
 402                         'rc_old_len'    => NULL,
 403                         'rc_new_len'    => NULL,
 404                         'rc_deleted'    => 0,
 405                         'rc_logid'              => 0, # notifyMove not used anymore
 406                         'rc_log_type'   => null,
 407                         'rc_log_action' => '',
 408                         'rc_params'             => ''
 409                 );
 410
 411                 $rc->mExtra = array(
 412                         'prefixedDBkey' => $oldTitle->getPrefixedDBkey(),
 413                         'lastTimestamp' => 0,
 414                         'prefixedMoveTo'        => $newTitle->getPrefixedDBkey()
 415                 );
 416                 $rc->save();
 417         }
 418
 419         public static function notifyMoveToNew( $timestamp, &$oldTitle, &$newTitle, &$user, $comment, $ip='' ) {
 420                 RecentChange::notifyMove( $timestamp, $oldTitle, $newTitle, $user, $comment, $ip, false );
 421         }
 422
 423         public static function notifyMoveOverRedirect( $timestamp, &$oldTitle, &$newTitle, &$user, $comment, $ip='' ) {
 424                 RecentChange::notifyMove( $timestamp, $oldTitle, $newTitle, $user, $comment, $ip, true );
 425         }
 426
 427         # A log entry is different to an edit in that previous revisions are not kept
 428         public static function notifyLog( $timestamp, &$title, &$user, $actionComment, $ip='',
 429            $type, $action, $target, $logComment, $params, $newId=0 )
 430         {
 431                 global $wgRequest;
 432
 433                 if ( !$ip ) {
 434                         $ip = wfGetIP();
 435                         if ( !$ip ) {
 436                                 $ip = '';
 437                         }
 438                 }
 439
 440                 $rc = new RecentChange;
 441                 $rc->mAttribs = array(
 442                         'rc_timestamp'  => $timestamp,
 443                         'rc_cur_time'   => $timestamp,
 444                         'rc_namespace'  => $target->getNamespace(),
 445                         'rc_title'      => $target->getDBkey(),
 446                         'rc_type'       => RC_LOG,
 447                         'rc_minor'      => 0,
 448                         'rc_cur_id'     => $target->getArticleID(),
 449                         'rc_user'       => $user->getID(),
 450                         'rc_user_text'  => $user->getName(),
 451                         'rc_comment'    => $logComment,
 452                         'rc_this_oldid' => 0,
 453                         'rc_last_oldid' => 0,
 454                         'rc_bot'        => $user->isAllowed( 'bot' ) ? $wgRequest->getBool( 'bot' , true ) : 0,
 455                         'rc_moved_to_ns'        => 0,
 456                         'rc_moved_to_title'     => '',
 457                         'rc_ip' => $ip,
 458                         'rc_patrolled' => 1,
 459                         'rc_new'        => 0, # obsolete
 460                         'rc_old_len'    => NULL,
 461                         'rc_new_len'    => NULL,
 462                         'rc_deleted'    => 0,
 463                         'rc_logid'              => $newId,
 464                         'rc_log_type'   => $type,
 465                         'rc_log_action' => $action,
 466                         'rc_params'             => $params
 467                 );
 468                 $rc->mExtra =  array(
 469                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 470                         'lastTimestamp' => 0,
 471                         'actionComment' => $actionComment, // the comment appended to the action, passed from LogPage
 472                 );
 473                 $rc->save();
 474         }
 475
 476         # Initialises the members of this object from a mysql row object
 477         function loadFromRow( $row )
 478         {
 479                 $this->mAttribs = get_object_vars( $row );
 480                 $this->mAttribs["rc_timestamp"] = wfTimestamp(TS_MW, $this->mAttribs["rc_timestamp"]);
 481                 $this->mExtra = array();
 482         }
 483
 484         # Makes a pseudo-RC entry from a cur row
 485         function loadFromCurRow( $row )
 486         {
 487                 $this->mAttribs = array(
 488                         'rc_timestamp' => wfTimestamp(TS_MW, $row->rev_timestamp),
 489                         'rc_cur_time' => $row->rev_timestamp,
 490                         'rc_user' => $row->rev_user,
 491                         'rc_user_text' => $row->rev_user_text,
 492                         'rc_namespace' => $row->page_namespace,
 493                         'rc_title' => $row->page_title,
 494                         'rc_comment' => $row->rev_comment,
 495                         'rc_minor' => $row->rev_minor_edit ? 1 : 0,
 496                         'rc_type' => $row->page_is_new ? RC_NEW : RC_EDIT,
 497                         'rc_cur_id' => $row->page_id,
 498                         'rc_this_oldid' => $row->rev_id,
 499                         'rc_last_oldid' => isset($row->rc_last_oldid) ? $row->rc_last_oldid : 0,
 500                         'rc_bot'        => 0,
 501                         'rc_moved_to_ns'        => 0,
 502                         'rc_moved_to_title'     => '',
 503                         'rc_ip' => '',
 504                         'rc_id' => $row->rc_id,
 505                         'rc_patrolled' => $row->rc_patrolled,
 506                         'rc_new' => $row->page_is_new, # obsolete
 507                         'rc_old_len' => $row->rc_old_len,
 508                         'rc_new_len' => $row->rc_new_len,
 509                         'rc_params' => isset($row->rc_params) ? $row->rc_params : '',
 510                         'rc_log_type' => isset($row->rc_log_type) ? $row->rc_log_type : null,
 511                         'rc_log_action' => isset($row->rc_log_action) ? $row->rc_log_action : null,
 512                         'rc_log_id' => isset($row->rc_log_id) ? $row->rc_log_id: 0,
 513                         // this one REALLY should be set...
 514                         'rc_deleted' => isset($row->rc_deleted) ? $row->rc_deleted: 0,
 515                 );
 516
 517                 $this->mExtra = array();
 518         }
 519
 520         /**
 521          * Get an attribute value
 522          *
 523          * @param $name Attribute name
 524          * @return mixed
 525          */
 526         public function getAttribute( $name ) {
 527                 return isset( $this->mAttribs[$name] ) ? $this->mAttribs[$name] : NULL;
 528         }
 529
 530         /**
 531          * Gets the end part of the diff URL associated with this object
 532          * Blank if no diff link should be displayed
 533          */
 534         function diffLinkTrail( $forceCur )
 535         {
 536                 if ( $this->mAttribs['rc_type'] == RC_EDIT ) {
 537                         $trail = "curid=" . (int)($this->mAttribs['rc_cur_id']) .
 538                                 "&oldid=" . (int)($this->mAttribs['rc_last_oldid']);
 539                         if ( $forceCur ) {
 540                                 $trail .= '&diff=0' ;
 541                         } else {
 542                                 $trail .= '&diff=' . (int)($this->mAttribs['rc_this_oldid']);
 543                         }
 544                 } else {
 545                         $trail = '';
 546                 }
 547                 return $trail;
 548         }
 549
 550         function cleanupForIRC( $text ) {
 551                 return str_replace(array("\n", "\r"), array("", ""), $text);
 552         }
 553
 554         function getIRCLine() {
 555                 global $wgUseRCPatrol;
 556
 557                 // FIXME: Would be good to replace these 2 extract() calls with something more explicit
 558                 // e.g. list ($rc_type, $rc_id) = array_values ($this->mAttribs); [or something like that]
 559                 extract($this->mAttribs);
 560                 extract($this->mExtra);
 561
 562                 if ( $rc_type == RC_LOG ) {
 563                         $titleObj = Title::newFromText( "Log/$rc_log_type", NS_SPECIAL );
 564                 } else {
 565                         $titleObj =& $this->getTitle();
 566                 }
 567                 $title = $titleObj->getPrefixedText();
 568                 $title = $this->cleanupForIRC( $title );
 569
 570                 // FIXME: *HACK* these should be getFullURL(), hacked for SSL madness --brion 2005-12-26
 571                 if ( $rc_type == RC_LOG ) {
 572                         $url = '';
 573                 } elseif ( $rc_new && $wgUseRCPatrol ) {
 574                         $url = $titleObj->getInternalURL("rcid=$rc_id");
 575                 } else if ( $rc_new ) {
 576                         $url = $titleObj->getInternalURL();
 577                 } else if ( $wgUseRCPatrol ) {
 578                         $url = $titleObj->getInternalURL("diff=$rc_this_oldid&oldid=$rc_last_oldid&rcid=$rc_id");
 579                 } else {
 580                         $url = $titleObj->getInternalURL("diff=$rc_this_oldid&oldid=$rc_last_oldid");
 581                 }
 582
 583                 if ( isset( $oldSize ) && isset( $newSize ) ) {
 584                         $szdiff = $newSize - $oldSize;
 585                         if ($szdiff < -500) {
 586                                 $szdiff = "\002$szdiff\002";
 587                         } elseif ($szdiff >= 0) {
 588                                 $szdiff = '+' . $szdiff ;
 589                         }
 590                         $szdiff = '(' . $szdiff . ')' ;
 591                 } else {
 592                         $szdiff = '';
 593                 }
 594
 595                 $user = $this->cleanupForIRC( $rc_user_text );
 596
 597                 if ( $rc_type == RC_LOG ) {
 598                         $logTargetText = $this->getTitle()->getPrefixedText();
 599                         $comment = $this->cleanupForIRC( str_replace($logTargetText,"\00302$logTargetText\00310",$actionComment) );
 600                         $flag = $rc_log_action;
 601                 } else {
 602                         $comment = $this->cleanupForIRC( $rc_comment );
 603                         $flag = ($rc_minor ? "M" : "") . ($rc_new ? "N" : "");
 604                 }
 605                 # see http://www.irssi.org/documentation/formats for some colour codes. prefix is \003,
 606                 # no colour (\003) switches back to the term default
 607                 $fullString = "\00314[[\00307$title\00314]]\0034 $flag\00310 " .
 608                               "\00302$url\003 \0035*\003 \00303$user\003 \0035*\003 $szdiff \00310$comment\003\n";
 609                 return $fullString;
 610         }
 611
 612         /**
 613          * Returns the change size (HTML).
 614          * The lengths can be given optionally.
 615          */
 616         function getCharacterDifference( $old = 0, $new = 0 ) {
 617                 global $wgRCChangedSizeThreshold, $wgLang;
 618
 619                 if( $old === 0 ) {
 620                         $old = $this->mAttribs['rc_old_len'];
 621                 }
 622                 if( $new === 0 ) {
 623                         $new = $this->mAttribs['rc_new_len'];
 624                 }
 625
 626                 if( $old === NULL || $new === NULL ) {
 627                         return '';
 628                 }
 629
 630                 $szdiff = $new - $old;
 631                 $formatedSize = wfMsgExt( 'rc-change-size', array( 'parsemag', 'escape'),
 632                         $wgLang->formatNum($szdiff) );
 633
 634                 if( $szdiff < $wgRCChangedSizeThreshold ) {
 635                         return '<strong class=\'mw-plusminus-neg\'>(' . $formatedSize . ')</strong>';
 636                 } elseif( $szdiff === 0 ) {
 637                         return '<span class=\'mw-plusminus-null\'>(' . $formatedSize . ')</span>';
 638                 } elseif( $szdiff > 0 ) {
 639                         return '<span class=\'mw-plusminus-pos\'>(+' . $formatedSize . ')</span>';
 640                 } else {
 641                         return '<span class=\'mw-plusminus-neg\'>(' . $formatedSize . ')</span>';
 642                 }
 643         }
 644 }