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;
 226                 if( $wgUseEnotif ) {
 227                         # this would be better as an extension hook
 228                         global $wgUser;
 229                         include_once( "UserMailer.php" );
 230                         $enotif = new EmailNotification();
 231                         $title = Title::makeTitle( $this->mAttribs['rc_namespace'], $this->mAttribs['rc_title'] );
 232                         $enotif->notifyOnPageChange( $wgUser, $title,
 233                                 $this->mAttribs['rc_timestamp'],
 234                                 $this->mAttribs['rc_comment'],
 235                                 $this->mAttribs['rc_minor'],
 236                                 $this->mAttribs['rc_last_oldid'] );
 237                 }
 238
 239                 # Notify extensions
 240                 wfRunHooks( 'RecentChange_save', array( &$this ) );
 241         }
 242
 243         /**
 244          * Mark a given change as patrolled
 245          *
 246          * @param mixed $change RecentChange or corresponding rc_id
 247          */
 248         public static function markPatrolled( $change ) {
 249                 $rcid = $change instanceof RecentChange
 250                         ? $change->mAttribs['rc_id']
 251                         : $change;
 252                 $dbw = wfGetDB( DB_MASTER );
 253                 $dbw->update(
 254                         'recentchanges',
 255                         array(
 256                                 'rc_patrolled' => 1
 257                         ),
 258                         array(
 259                                 'rc_id' => $rcid
 260                         ),
 261                         __METHOD__
 262                 );
 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 = "default", $ip = '', $oldSize = 0, $newSize = 0,
 268                 $newId = 0)
 269         {
 270
 271                 if ( $bot === 'default' ) {
 272                         $bot = $user->isAllowed( 'bot' );
 273                 }
 274
 275                 if ( !$ip ) {
 276                         $ip = wfGetIP();
 277                         if ( !$ip ) {
 278                                 $ip = '';
 279                         }
 280                 }
 281
 282                 $rc = new RecentChange;
 283                 $rc->mAttribs = array(
 284                         'rc_timestamp'  => $timestamp,
 285                         'rc_cur_time'   => $timestamp,
 286                         'rc_namespace'  => $title->getNamespace(),
 287                         'rc_title'      => $title->getDBkey(),
 288                         'rc_type'       => RC_EDIT,
 289                         'rc_minor'      => $minor ? 1 : 0,
 290                         'rc_cur_id'     => $title->getArticleID(),
 291                         'rc_user'       => $user->getID(),
 292                         'rc_user_text'  => $user->getName(),
 293                         'rc_comment'    => $comment,
 294                         'rc_this_oldid' => $newId,
 295                         'rc_last_oldid' => $oldId,
 296                         'rc_bot'        => $bot ? 1 : 0,
 297                         'rc_moved_to_ns'        => 0,
 298                         'rc_moved_to_title'     => '',
 299                         'rc_ip'         => $ip,
 300                         'rc_patrolled'  => 0,
 301                         'rc_new'        => 0,  # obsolete
 302                         'rc_old_len'    => $oldSize,
 303                         'rc_new_len'    => $newSize,
 304                         'rc_deleted'    => 0,
 305                         'rc_logid'              => 0,
 306                         'rc_log_type'   => null,
 307                         'rc_log_action' => '',
 308                         'rc_params'             => ''
 309                 );
 310
 311                 $rc->mExtra =  array(
 312                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 313                         'lastTimestamp' => $lastTimestamp,
 314                         'oldSize'       => $oldSize,
 315                         'newSize'       => $newSize,
 316                 );
 317                 $rc->save();
 318                 return( $rc->mAttribs['rc_id'] );
 319         }
 320
 321         /**
 322          * Makes an entry in the database corresponding to page creation
 323          * Note: the title object must be loaded with the new id using resetArticleID()
 324          * @todo Document parameters and return
 325          */
 326         public static function notifyNew( $timestamp, &$title, $minor, &$user, $comment, $bot = 'default',
 327           $ip='', $size = 0, $newId = 0 )
 328         {
 329                 if( !$ip ) {
 330                         $ip = wfGetIP();
 331                         if( !$ip ) $ip = '';
 332                 }
 333                 if ( $bot === 'default' ) {
 334                         $bot = $user->isAllowed( 'bot' );
 335                 }
 336
 337                 $rc = new RecentChange;
 338                 $rc->mAttribs = array(
 339                         'rc_timestamp'      => $timestamp,
 340                         'rc_cur_time'       => $timestamp,
 341                         'rc_namespace'      => $title->getNamespace(),
 342                         'rc_title'          => $title->getDBkey(),
 343                         'rc_type'           => RC_NEW,
 344                         'rc_minor'          => $minor ? 1 : 0,
 345                         'rc_cur_id'         => $title->getArticleID(),
 346                         'rc_user'           => $user->getID(),
 347                         'rc_user_text'      => $user->getName(),
 348                         'rc_comment'        => $comment,
 349                         'rc_this_oldid'     => $newId,
 350                         'rc_last_oldid'     => 0,
 351                         'rc_bot'            => $bot ? 1 : 0,
 352                         'rc_moved_to_ns'    => 0,
 353                         'rc_moved_to_title' => '',
 354                         'rc_ip'             => $ip,
 355                         'rc_patrolled'      => 0,
 356                         'rc_new'                => 1, # obsolete
 357                         'rc_old_len'        => 0,
 358                         'rc_new_len'        => $size,
 359                         'rc_deleted'            => 0,
 360                         'rc_logid'                      => 0,
 361                         'rc_log_type'           => null,
 362                         'rc_log_action'         => '',
 363                         'rc_params'                     => ''
 364                 );
 365
 366                 $rc->mExtra =  array(
 367                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 368                         'lastTimestamp' => 0,
 369                         'oldSize' => 0,
 370                         'newSize' => $size
 371                 );
 372                 $rc->save();
 373                 return( $rc->mAttribs['rc_id'] );
 374         }
 375
 376         # Makes an entry in the database corresponding to a rename
 377         public static function notifyMove( $timestamp, &$oldTitle, &$newTitle, &$user, $comment, $ip='', $overRedir = false )
 378         {
 379                 if( !$ip ) {
 380                         $ip = wfGetIP();
 381                         if( !$ip ) $ip = '';
 382                 }
 383
 384                 $rc = new RecentChange;
 385                 $rc->mAttribs = array(
 386                         'rc_timestamp'  => $timestamp,
 387                         'rc_cur_time'   => $timestamp,
 388                         'rc_namespace'  => $oldTitle->getNamespace(),
 389                         'rc_title'      => $oldTitle->getDBkey(),
 390                         'rc_type'       => $overRedir ? RC_MOVE_OVER_REDIRECT : RC_MOVE,
 391                         'rc_minor'      => 0,
 392                         'rc_cur_id'     => $oldTitle->getArticleID(),
 393                         'rc_user'       => $user->getID(),
 394                         'rc_user_text'  => $user->getName(),
 395                         'rc_comment'    => $comment,
 396                         'rc_this_oldid' => 0,
 397                         'rc_last_oldid' => 0,
 398                         'rc_bot'        => $user->isAllowed( 'bot' ) ? 1 : 0,
 399                         'rc_moved_to_ns'        => $newTitle->getNamespace(),
 400                         'rc_moved_to_title'     => $newTitle->getDBkey(),
 401                         'rc_ip'         => $ip,
 402                         'rc_new'        => 0, # obsolete
 403                         'rc_patrolled'  => 1,
 404                         'rc_old_len'    => NULL,
 405                         'rc_new_len'    => NULL,
 406                         'rc_deleted'    => 0,
 407                         'rc_logid'              => 0, # notifyMove not used anymore
 408                         'rc_log_type'   => null,
 409                         'rc_log_action' => '',
 410                         'rc_params'             => ''
 411                 );
 412
 413                 $rc->mExtra = array(
 414                         'prefixedDBkey' => $oldTitle->getPrefixedDBkey(),
 415                         'lastTimestamp' => 0,
 416                         'prefixedMoveTo'        => $newTitle->getPrefixedDBkey()
 417                 );
 418                 $rc->save();
 419         }
 420
 421         public static function notifyMoveToNew( $timestamp, &$oldTitle, &$newTitle, &$user, $comment, $ip='' ) {
 422                 RecentChange::notifyMove( $timestamp, $oldTitle, $newTitle, $user, $comment, $ip, false );
 423         }
 424
 425         public static function notifyMoveOverRedirect( $timestamp, &$oldTitle, &$newTitle, &$user, $comment, $ip='' ) {
 426                 RecentChange::notifyMove( $timestamp, $oldTitle, $newTitle, $user, $comment, $ip, true );
 427         }
 428
 429         # A log entry is different to an edit in that previous revisions are not kept
 430         public static function notifyLog( $timestamp, &$title, &$user, $comment, $ip='',
 431            $type, $action, $target, $logComment, $params, $newId=0 )
 432         {
 433                 if( !$ip ) {
 434                         $ip = wfGetIP();
 435                         if( !$ip ) $ip = '';
 436                 }
 437
 438                 $rc = new RecentChange;
 439                 $rc->mAttribs = array(
 440                         'rc_timestamp'  => $timestamp,
 441                         'rc_cur_time'   => $timestamp,
 442                         'rc_namespace'  => $target->getNamespace(),
 443                         'rc_title'      => $target->getDBkey(),
 444                         'rc_type'       => RC_LOG,
 445                         'rc_minor'      => 0,
 446                         'rc_cur_id'     => $target->getArticleID(),
 447                         'rc_user'       => $user->getID(),
 448                         'rc_user_text'  => $user->getName(),
 449                         'rc_comment'    => $logComment,
 450                         'rc_this_oldid' => 0,
 451                         'rc_last_oldid' => 0,
 452                         'rc_bot'        => $user->isAllowed( 'bot' ) ? 1 : 0,
 453                         'rc_moved_to_ns'        => 0,
 454                         'rc_moved_to_title'     => '',
 455                         'rc_ip' => $ip,
 456                         'rc_patrolled' => 1,
 457                         'rc_new'        => 0, # obsolete
 458                         'rc_old_len'    => NULL,
 459                         'rc_new_len'    => NULL,
 460                         'rc_deleted'    => 0,
 461                         'rc_logid'              => $newId,
 462                         'rc_log_type'   => $type,
 463                         'rc_log_action' => $action,
 464                         'rc_params'             => $params
 465                 );
 466                 $rc->mExtra =  array(
 467                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 468                         'lastTimestamp' => 0,
 469                         'logType' => $type,
 470                         'logAction' => $action,
 471                         'logComment' => $logComment,
 472                         'logTarget' => $target,
 473                         'logParams' => $params
 474                 );
 475                 $rc->save();
 476         }
 477
 478         # Initialises the members of this object from a mysql row object
 479         function loadFromRow( $row )
 480         {
 481                 $this->mAttribs = get_object_vars( $row );
 482                 $this->mAttribs["rc_timestamp"] = wfTimestamp(TS_MW, $this->mAttribs["rc_timestamp"]);
 483                 $this->mExtra = array();
 484         }
 485
 486         # Makes a pseudo-RC entry from a cur row
 487         function loadFromCurRow( $row )
 488         {
 489                 $this->mAttribs = array(
 490                         'rc_timestamp' => wfTimestamp(TS_MW, $row->rev_timestamp),
 491                         'rc_cur_time' => $row->rev_timestamp,
 492                         'rc_user' => $row->rev_user,
 493                         'rc_user_text' => $row->rev_user_text,
 494                         'rc_namespace' => $row->page_namespace,
 495                         'rc_title' => $row->page_title,
 496                         'rc_comment' => $row->rev_comment,
 497                         'rc_minor' => $row->rev_minor_edit ? 1 : 0,
 498                         'rc_type' => $row->page_is_new ? RC_NEW : RC_EDIT,
 499                         'rc_cur_id' => $row->page_id,
 500                         'rc_this_oldid' => $row->rev_id,
 501                         'rc_last_oldid' => isset($row->rc_last_oldid) ? $row->rc_last_oldid : 0,
 502                         'rc_bot'        => 0,
 503                         'rc_moved_to_ns'        => 0,
 504                         'rc_moved_to_title'     => '',
 505                         'rc_ip' => '',
 506                         'rc_id' => $row->rc_id,
 507                         'rc_patrolled' => $row->rc_patrolled,
 508                         'rc_new' => $row->page_is_new, # obsolete
 509                         'rc_old_len' => $row->rc_old_len,
 510                         'rc_new_len' => $row->rc_new_len,
 511                         'rc_deleted'  => $row->rc_deleted,
 512                         'rc_logid'      => $row->rc_logid,
 513                         'rc_log_type'   => $row->rc_log_type,
 514                         'rc_log_action' => $row->rc_log_action,
 515                         'rc_params'     => $row->rc_params
 516                 );
 517
 518                 $this->mExtra = array();
 519         }
 520
 521         /**
 522          * Get an attribute value
 523          *
 524          * @param $name Attribute name
 525          * @return mixed
 526          */
 527         public function getAttribute( $name ) {
 528                 return isset( $this->mAttribs[$name] ) ? $this->mAttribs[$name] : NULL;
 529         }
 530
 531         /**
 532          * Gets the end part of the diff URL associated with this object
 533          * Blank if no diff link should be displayed
 534          */
 535         function diffLinkTrail( $forceCur )
 536         {
 537                 if ( $this->mAttribs['rc_type'] == RC_EDIT ) {
 538                         $trail = "curid=" . (int)($this->mAttribs['rc_cur_id']) .
 539                                 "&oldid=" . (int)($this->mAttribs['rc_last_oldid']);
 540                         if ( $forceCur ) {
 541                                 $trail .= '&diff=0' ;
 542                         } else {
 543                                 $trail .= '&diff=' . (int)($this->mAttribs['rc_this_oldid']);
 544                         }
 545                 } else {
 546                         $trail = '';
 547                 }
 548                 return $trail;
 549         }
 550
 551         function cleanupForIRC( $text ) {
 552                 return str_replace(array("\n", "\r"), array("", ""), $text);
 553         }
 554
 555         function getIRCLine() {
 556                 global $wgUseRCPatrol;
 557
 558                 // FIXME: Would be good to replace these 2 extract() calls with something more explicit
 559                 // e.g. list ($rc_type, $rc_id) = array_values ($this->mAttribs); [or something like that]
 560                 extract($this->mAttribs);
 561                 extract($this->mExtra);
 562
 563                 $titleObj =& $this->getTitle();
 564                 if ( $rc_type == RC_LOG ) {
 565                         $title = Namespace::getCanonicalName( $titleObj->getNamespace() ) . $titleObj->getText();
 566                 } else {
 567                         $title = $titleObj->getPrefixedText();
 568                 }
 569                 $title = $this->cleanupForIRC( $title );
 570
 571                 $bad = array("\n", "\r");
 572                 $empty = array("", "");
 573                 $title = $titleObj->getPrefixedText();
 574                 $title = str_replace($bad, $empty, $title);
 575
 576                 // FIXME: *HACK* these should be getFullURL(), hacked for SSL madness --brion 2005-12-26
 577                 if ( $rc_type == RC_LOG ) {
 578                         $url = '';
 579                 } elseif ( $rc_new && $wgUseRCPatrol ) {
 580                         $url = $titleObj->getInternalURL("rcid=$rc_id");
 581                 } else if ( $rc_new ) {
 582                         $url = $titleObj->getInternalURL();
 583                 } else if ( $wgUseRCPatrol ) {
 584                         $url = $titleObj->getInternalURL("diff=$rc_this_oldid&oldid=$rc_last_oldid&rcid=$rc_id");
 585                 } else {
 586                         $url = $titleObj->getInternalURL("diff=$rc_this_oldid&oldid=$rc_last_oldid");
 587                 }
 588
 589                 if ( isset( $oldSize ) && isset( $newSize ) ) {
 590                         $szdiff = $newSize - $oldSize;
 591                         if ($szdiff < -500) {
 592                                 $szdiff = "\002$szdiff\002";
 593                         } elseif ($szdiff >= 0) {
 594                                 $szdiff = '+' . $szdiff ;
 595                         }
 596                         $szdiff = '(' . $szdiff . ')' ;
 597                 } else {
 598                         $szdiff = '';
 599                 }
 600
 601                 $user = $this->cleanupForIRC( $rc_user_text );
 602
 603                 if ( $rc_type == RC_LOG ) {
 604                         $logTargetText = $logTarget->getPrefixedText();
 605                         $comment = $this->cleanupForIRC( str_replace( $logTargetText, "\00302$logTargetText\00310", $rc_comment ) );
 606                         $flag = $logAction;
 607                 } else {
 608                         $comment = $this->cleanupForIRC( $rc_comment );
 609                         $flag = ($rc_minor ? "M" : "") . ($rc_new ? "N" : "");
 610                 }
 611                 # see http://www.irssi.org/documentation/formats for some colour codes. prefix is \003,
 612                 # no colour (\003) switches back to the term default
 613                 $fullString = "\00314[[\00307$title\00314]]\0034 $flag\00310 " .
 614                               "\00302$url\003 \0035*\003 \00303$user\003 \0035*\003 $szdiff \00310$comment\003\n";
 615                 return $fullString;
 616         }
 617
 618         /**
 619          * Returns the change size (HTML).
 620          * The lengths can be given optionally.
 621          */
 622         function getCharacterDifference( $old = 0, $new = 0 ) {
 623                 global $wgRCChangedSizeThreshold, $wgLang;
 624
 625                 if( $old === 0 ) {
 626                         $old = $this->mAttribs['rc_old_len'];
 627                 }
 628                 if( $new === 0 ) {
 629                         $new = $this->mAttribs['rc_new_len'];
 630                 }
 631
 632                 if( $old === NULL || $new === NULL ) {
 633                         return '';
 634                 }
 635
 636                 $szdiff = $new - $old;
 637                 $formatedSize = wfMsgExt( 'rc-change-size', array( 'parsemag', 'escape'),
 638                         $wgLang->formatNum($szdiff) );
 639
 640                 if( $szdiff < $wgRCChangedSizeThreshold ) {
 641                         return '<strong class=\'mw-plusminus-neg\'>(' . $formatedSize . ')</strong>';
 642                 } elseif( $szdiff === 0 ) {
 643                         return '<span class=\'mw-plusminus-null\'>(' . $formatedSize . ')</span>';
 644                 } elseif( $szdiff > 0 ) {
 645                         return '<span class=\'mw-plusminus-pos\'>(+' . $formatedSize . ')</span>';
 646                 } else {
 647                         return '<span class=\'mw-plusminus-neg\'>(' . $formatedSize . ')</span>';
 648                 }
 649         }
 650 }
 651