includes/RecentChange.php

   1 <?php
   2
   3 /**
   4  * Utility class for creating new RC entries
   5  * mAttribs:
   6  *      rc_id           id of the row in the recentchanges table
   7  *      rc_timestamp    time the entry was made
   8  *      rc_cur_time     timestamp on the cur row
   9  *      rc_namespace    namespace #
  10  *      rc_title        non-prefixed db key
  11  *      rc_type         is new entry, used to determine whether updating is necessary
  12  *      rc_minor        is minor
  13  *      rc_cur_id       page_id of associated page entry
  14  *      rc_user         user id who made the entry
  15  *      rc_user_text    user name who made the entry
  16  *      rc_comment      edit summary
  17  *      rc_this_oldid   rev_id associated with this entry (or zero)
  18  *      rc_last_oldid   rev_id associated with the entry before this one (or zero)
  19  *      rc_bot          is bot, hidden
  20  *      rc_ip           IP address of the user in dotted quad notation
  21  *      rc_new          obsolete, use rc_type==RC_NEW
  22  *      rc_patrolled    boolean whether or not someone has marked this edit as patrolled
  23  *      rc_old_len      integer byte length of the text before the edit
  24  *      rc_new_len      the same after the edit
  25   *     rc_deleted              partial deletion
  26  *      rc_logid                the log_id value for this log entry (or zero)
  27  *  rc_log_type         the log type (or null)
  28  *      rc_log_action   the log action (or null)
  29  *  rc_params           log params
  30  *
  31  * mExtra:
  32  *      prefixedDBkey   prefixed db key, used by external app via msg queue
  33  *      lastTimestamp   timestamp of previous entry, used in WHERE clause during update
  34  *      lang            the interwiki prefix, automatically set in save()
  35  *  oldSize         text size before the change
  36  *  newSize         text size after the change
  37  *
  38  * temporary:           not stored in the database
  39  *      notificationtimestamp
  40  *      numberofWatchingusers
  41  *
  42  * @todo document functions and variables
  43  */
  44 class RecentChange
  45 {
  46         var $mAttribs = array(), $mExtra = array();
  47         var $mTitle = false, $mMovedToTitle = false;
  48         var $numberofWatchingusers = 0 ; # Dummy to prevent error message in SpecialRecentchangeslinked
  49
  50         # Factory methods
  51
  52         public static function newFromRow( $row )
  53         {
  54                 $rc = new RecentChange;
  55                 $rc->loadFromRow( $row );
  56                 return $rc;
  57         }
  58
  59         public static function newFromCurRow( $row )
  60         {
  61                 $rc = new RecentChange;
  62                 $rc->loadFromCurRow( $row );
  63                 $rc->notificationtimestamp = false;
  64                 $rc->numberofWatchingusers = false;
  65                 return $rc;
  66         }
  67
  68         /**
  69          * Obtain the recent change with a given rc_id value
  70          *
  71          * @param $rcid rc_id value to retrieve
  72          * @return RecentChange
  73          */
  74         public static function newFromId( $rcid ) {
  75                 $dbr = wfGetDB( DB_SLAVE );
  76                 $res = $dbr->select( 'recentchanges', '*', array( 'rc_id' => $rcid ), __METHOD__ );
  77                 if( $res && $dbr->numRows( $res ) > 0 ) {
  78                         $row = $dbr->fetchObject( $res );
  79                         $dbr->freeResult( $res );
  80                         return self::newFromRow( $row );
  81                 } else {
  82                         return NULL;
  83                 }
  84         }
  85
  86         /**
  87          * Find the first recent change matching some specific conditions
  88          *
  89          * @param array $conds Array of conditions
  90          * @param mixed $fname Override the method name in profiling/logs
  91          * @return RecentChange
  92          */
  93         public static function newFromConds( $conds, $fname = false ) {
  94                 if( $fname === false )
  95                         $fname = __METHOD__;
  96                 $dbr = wfGetDB( DB_SLAVE );
  97                 $res = $dbr->select(
  98                         'recentchanges',
  99                         '*',
 100                         $conds,
 101                         $fname
 102                 );
 103                 if( $res instanceof ResultWrapper && $res->numRows() > 0 ) {
 104                         $row = $res->fetchObject();
 105                         $res->free();
 106                         return self::newFromRow( $row );
 107                 }
 108                 return null;
 109         }
 110
 111         # Accessors
 112
 113         function setAttribs( $attribs )
 114         {
 115                 $this->mAttribs = $attribs;
 116         }
 117
 118         function setExtra( $extra )
 119         {
 120                 $this->mExtra = $extra;
 121         }
 122
 123         function &getTitle()
 124         {
 125                 if ( $this->mTitle === false ) {
 126                         $this->mTitle = Title::makeTitle( $this->mAttribs['rc_namespace'], $this->mAttribs['rc_title'] );
 127                 }
 128                 return $this->mTitle;
 129         }
 130
 131         function getMovedToTitle()
 132         {
 133                 if ( $this->mMovedToTitle === false ) {
 134                         $this->mMovedToTitle = Title::makeTitle( $this->mAttribs['rc_moved_to_ns'],
 135                                 $this->mAttribs['rc_moved_to_title'] );
 136                 }
 137                 return $this->mMovedToTitle;
 138         }
 139
 140         # Writes the data in this object to the database
 141         function save()
 142         {
 143                 global $wgLocalInterwiki, $wgPutIPinRC, $wgRC2UDPAddress, $wgRC2UDPOmitBots;
 144                 $fname = 'RecentChange::save';
 145
 146                 $dbw = wfGetDB( DB_MASTER );
 147                 if ( !is_array($this->mExtra) ) {
 148                         $this->mExtra = array();
 149                 }
 150                 $this->mExtra['lang'] = $wgLocalInterwiki;
 151
 152                 if ( !$wgPutIPinRC ) {
 153                         $this->mAttribs['rc_ip'] = '';
 154                 }
 155
 156                 # If our database is strict about IP addresses, use NULL instead of an empty string
 157                 if ( $dbw->strictIPs() and $this->mAttribs['rc_ip'] == '' ) {
 158                         unset( $this->mAttribs['rc_ip'] );
 159                 }
 160
 161                 # Fixup database timestamps
 162                 $this->mAttribs['rc_timestamp'] = $dbw->timestamp($this->mAttribs['rc_timestamp']);
 163                 $this->mAttribs['rc_cur_time'] = $dbw->timestamp($this->mAttribs['rc_cur_time']);
 164                 $this->mAttribs['rc_id'] = $dbw->nextSequenceValue( 'rc_rc_id_seq' );
 165
 166                 ## If we are using foreign keys, an entry of 0 for the page_id will fail, so use NULL
 167                 if ( $dbw->cascadingDeletes() and $this->mAttribs['rc_cur_id']==0 ) {
 168                         unset ( $this->mAttribs['rc_cur_id'] );
 169                 }
 170
 171                 # Insert new row
 172                 $dbw->insert( 'recentchanges', $this->mAttribs, $fname );
 173
 174                 # Set the ID
 175                 $this->mAttribs['rc_id'] = $dbw->insertId();
 176
 177                 # Notify external application via UDP
 178                 if ( $wgRC2UDPAddress && ( !$this->mAttribs['rc_bot'] || !$wgRC2UDPOmitBots ) ) {
 179                         self::sendToUDP( $this->getIRCLine() );
 180                 }
 181
 182                 # E-mail notifications
 183                 global $wgUseEnotif, $wgShowUpdatedMarker, $wgUser;
 184                 if( $wgUseEnotif || $wgShowUpdatedMarker ) {
 185                         // Users
 186                         if( $this->mAttribs['rc_user'] ) {
 187                                 $editor = ($wgUser->getId() == $this->mAttribs['rc_user']) ?
 188                                         $wgUser : User::newFromID( $this->mAttribs['rc_user'] );
 189                         // Anons
 190                         } else {
 191                                 $editor = ($wgUser->getName() == $this->mAttribs['rc_user_text']) ?
 192                                         $wgUser : User::newFromName( $this->mAttribs['rc_user_text'], false );
 193                         }
 194                         # FIXME: this would be better as an extension hook
 195                         ## FIXME: Why is this treating log entries as changes to the page?
 196                         ## This causes problems when pages are deleted.
 197                         $enotif = new EmailNotification();
 198                         $title = Title::makeTitle( $this->mAttribs['rc_namespace'], $this->mAttribs['rc_title'] );
 199                         $enotif->notifyOnPageChange( $editor, $title,
 200                                 $this->mAttribs['rc_timestamp'],
 201                                 $this->mAttribs['rc_comment'],
 202                                 $this->mAttribs['rc_minor'],
 203                                 $this->mAttribs['rc_last_oldid'] );
 204                 }
 205
 206                 # Notify extensions
 207                 wfRunHooks( 'RecentChange_save', array( &$this ) );
 208         }
 209
 210         /**
 211          * Send some text to UDP
 212          * @param string $line
 213          * @param string $prefix
 214          * @param string $address
 215          * @return bool success
 216          */
 217         public static function sendToUDP( $line, $address = '', $prefix = '' ) {
 218                 global $wgRC2UDPAddress, $wgRC2UDPPrefix, $wgRC2UDPPort;
 219                 # Assume default for standard RC case
 220                 $address = $address ? $address : $wgRC2UDPAddress;
 221                 $prefix = $prefix ? $prefix : $wgRC2UDPPrefix;
 222                 # Notify external application via UDP
 223                 if( $address ) {
 224                         $conn = socket_create( AF_INET, SOCK_DGRAM, SOL_UDP );
 225                         if( $conn ) {
 226                                 $line = $prefix . $line;
 227                                 socket_sendto( $conn, $line, strlen($line), 0, $address, $wgRC2UDPPort );
 228                                 socket_close( $conn );
 229                                 return true;
 230                         }
 231                 }
 232                 return false;
 233         }
 234
 235         /**
 236          * Remove newlines and carriage returns
 237          * @param string $line
 238          * @return string
 239          */
 240         public static function cleanupForIRC( $text ) {
 241                 return str_replace(array("\n", "\r"), array("", ""), $text);
 242         }
 243
 244         /**
 245          * Mark a given change as patrolled
 246          *
 247          * @param mixed $change RecentChange or corresponding rc_id
 248          * @param bool $auto for automatic patrol
 249          * @return See doMarkPatrolled(), or null if $change is not an existing rc_id
 250          */
 251         public static function markPatrolled( $change, $auto = false ) {
 252                 $change = $change instanceof RecentChange
 253                         ? $change
 254                         : RecentChange::newFromId($change);
 255                 if( !$change instanceof RecentChange ) {
 256                         return null;
 257                 }
 258                 return $change->doMarkPatrolled( $auto );
 259         }
 260
 261         /**
 262          * Mark this RecentChange as patrolled
 263          *
 264          * NOTE: Can also return 'rcpatroldisabled', 'hookaborted' and 'markedaspatrollederror-noautopatrol' as errors
 265          * @param bool $auto for automatic patrol
 266          * @return array of permissions errors, see Title::getUserPermissionsErrors()
 267          */
 268         public function doMarkPatrolled( $auto = false ) {
 269                 global $wgUser, $wgUseRCPatrol, $wgUseNPPatrol;
 270                 $errors = array();
 271                 // If recentchanges patrol is disabled, only new pages
 272                 // can be patrolled
 273                 if ( !$wgUseRCPatrol
 274                         && ( !$wgUseNPPatrol || $this->getAttribute( 'rc_type' ) != RC_NEW ) )
 275                 {
 276                         $errors[] = array('rcpatroldisabled');
 277                 }
 278
 279                 // Automatic patrol needs "autopatrol", ordinary patrol needs "patrol"
 280                 $right = $auto ? 'autopatrol' : 'patrol';
 281                 $errors = array_merge( $errors, $this->getTitle()->getUserPermissionsErrors( $right, $wgUser ) );
 282                 if( !wfRunHooks('MarkPatrolled', array($this->getAttribute('rc_id'), &$wgUser, false)) )
 283                         $errors[] = array('hookaborted');
 284
 285                 // Users without the 'autopatrol' right can't patrol their
 286                 // own revisions
 287                 if( $wgUser->getName() == $this->getAttribute('rc_user_text') && !$wgUser->isAllowed('autopatrol') )
 288                         $errors[] = array('markedaspatrollederror-noautopatrol');
 289
 290                 if( $errors ) {
 291                         return $errors;
 292                 }
 293
 294                 // If the change was patrolled already, do nothing
 295                 if( $this->getAttribute('rc_patrolled') )
 296                         return array();
 297
 298                 // Actually set the 'patrolled' flag in RC
 299                 $this->reallyMarkPatrolled();
 300
 301                 // Log this patrol event
 302                 PatrolLog::record( $this, $auto );
 303                 wfRunHooks( 'MarkPatrolledComplete', array($this->getAttribute('rc_id'), &$wgUser, false) );
 304                 return array();
 305         }
 306
 307         /**
 308          * Mark this RecentChange patrolled, without error checking
 309          * @return int Number of affected rows
 310          */
 311         public function reallyMarkPatrolled() {
 312                 $dbw = wfGetDB( DB_MASTER );
 313                 $dbw->update(
 314                         'recentchanges',
 315                         array(
 316                                 'rc_patrolled' => 1
 317                         ),
 318                         array(
 319                                 'rc_id' => $this->getAttribute('rc_id')
 320                         ),
 321                         __METHOD__
 322                 );
 323                 return $dbw->affectedRows();
 324         }
 325
 326         # Makes an entry in the database corresponding to an edit
 327         public static function notifyEdit( $timestamp, &$title, $minor, &$user, $comment,
 328                 $oldId, $lastTimestamp, $bot, $ip = '', $oldSize = 0, $newSize = 0, $newId = 0)
 329         {
 330                 if ( !$ip ) {
 331                         $ip = wfGetIP();
 332                         if ( !$ip ) {
 333                                 $ip = '';
 334                         }
 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_EDIT,
 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' => $oldId,
 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'        => 0,  # obsolete
 357                         'rc_old_len'    => $oldSize,
 358                         'rc_new_len'    => $newSize,
 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' => $lastTimestamp,
 369                         'oldSize'       => $oldSize,
 370                         'newSize'       => $newSize,
 371                 );
 372                 $rc->save();
 373                 return $rc;
 374         }
 375
 376         /**
 377          * Makes an entry in the database corresponding to page creation
 378          * Note: the title object must be loaded with the new id using resetArticleID()
 379          * @todo Document parameters and return
 380          */
 381         public static function notifyNew( $timestamp, &$title, $minor, &$user, $comment, $bot,
 382           $ip='', $size = 0, $newId = 0 )
 383         {
 384                 if ( !$ip ) {
 385                         $ip = wfGetIP();
 386                         if ( !$ip ) {
 387                                 $ip = '';
 388                         }
 389                 }
 390
 391                 $rc = new RecentChange;
 392                 $rc->mAttribs = array(
 393                         'rc_timestamp'      => $timestamp,
 394                         'rc_cur_time'       => $timestamp,
 395                         'rc_namespace'      => $title->getNamespace(),
 396                         'rc_title'          => $title->getDBkey(),
 397                         'rc_type'           => RC_NEW,
 398                         'rc_minor'          => $minor ? 1 : 0,
 399                         'rc_cur_id'         => $title->getArticleID(),
 400                         'rc_user'           => $user->getId(),
 401                         'rc_user_text'      => $user->getName(),
 402                         'rc_comment'        => $comment,
 403                         'rc_this_oldid'     => $newId,
 404                         'rc_last_oldid'     => 0,
 405                         'rc_bot'            => $bot ? 1 : 0,
 406                         'rc_moved_to_ns'    => 0,
 407                         'rc_moved_to_title' => '',
 408                         'rc_ip'             => $ip,
 409                         'rc_patrolled'      => 0,
 410                         'rc_new'                => 1, # obsolete
 411                         'rc_old_len'        => 0,
 412                         'rc_new_len'        => $size,
 413                         'rc_deleted'            => 0,
 414                         'rc_logid'                      => 0,
 415                         'rc_log_type'           => null,
 416                         'rc_log_action'         => '',
 417                         'rc_params'                     => ''
 418                 );
 419
 420                 $rc->mExtra =  array(
 421                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 422                         'lastTimestamp' => 0,
 423                         'oldSize' => 0,
 424                         'newSize' => $size
 425                 );
 426                 $rc->save();
 427                 return $rc;
 428         }
 429
 430         # Makes an entry in the database corresponding to a rename
 431         public static function notifyMove( $timestamp, &$oldTitle, &$newTitle, &$user, $comment, $ip='', $overRedir = false )
 432         {
 433                 global $wgRequest;
 434
 435                 if ( !$ip ) {
 436                         $ip = wfGetIP();
 437                         if ( !$ip ) {
 438                                 $ip = '';
 439                         }
 440                 }
 441
 442                 $rc = new RecentChange;
 443                 $rc->mAttribs = array(
 444                         'rc_timestamp'  => $timestamp,
 445                         'rc_cur_time'   => $timestamp,
 446                         'rc_namespace'  => $oldTitle->getNamespace(),
 447                         'rc_title'      => $oldTitle->getDBkey(),
 448                         'rc_type'       => $overRedir ? RC_MOVE_OVER_REDIRECT : RC_MOVE,
 449                         'rc_minor'      => 0,
 450                         'rc_cur_id'     => $oldTitle->getArticleID(),
 451                         'rc_user'       => $user->getId(),
 452                         'rc_user_text'  => $user->getName(),
 453                         'rc_comment'    => $comment,
 454                         'rc_this_oldid' => 0,
 455                         'rc_last_oldid' => 0,
 456                         'rc_bot'        => $user->isAllowed( 'bot' ) ? $wgRequest->getBool( 'bot' , true ) : 0,
 457                         'rc_moved_to_ns'        => $newTitle->getNamespace(),
 458                         'rc_moved_to_title'     => $newTitle->getDBkey(),
 459                         'rc_ip'         => $ip,
 460                         'rc_new'        => 0, # obsolete
 461                         'rc_patrolled'  => 1,
 462                         'rc_old_len'    => NULL,
 463                         'rc_new_len'    => NULL,
 464                         'rc_deleted'    => 0,
 465                         'rc_logid'              => 0, # notifyMove not used anymore
 466                         'rc_log_type'   => null,
 467                         'rc_log_action' => '',
 468                         'rc_params'             => ''
 469                 );
 470
 471                 $rc->mExtra = array(
 472                         'prefixedDBkey' => $oldTitle->getPrefixedDBkey(),
 473                         'lastTimestamp' => 0,
 474                         'prefixedMoveTo'        => $newTitle->getPrefixedDBkey()
 475                 );
 476                 $rc->save();
 477         }
 478
 479         public static function notifyMoveToNew( $timestamp, &$oldTitle, &$newTitle, &$user, $comment, $ip='' ) {
 480                 RecentChange::notifyMove( $timestamp, $oldTitle, $newTitle, $user, $comment, $ip, false );
 481         }
 482
 483         public static function notifyMoveOverRedirect( $timestamp, &$oldTitle, &$newTitle, &$user, $comment, $ip='' ) {
 484                 RecentChange::notifyMove( $timestamp, $oldTitle, $newTitle, $user, $comment, $ip, true );
 485         }
 486
 487         public static function notifyLog( $timestamp, &$title, &$user, $actionComment, $ip='',
 488            $type, $action, $target, $logComment, $params, $newId=0 )
 489         {
 490                 global $wgRequest;
 491
 492                 if ( !$ip ) {
 493                         $ip = wfGetIP();
 494                         if ( !$ip ) {
 495                                 $ip = '';
 496                         }
 497                 }
 498
 499                 $rc = new RecentChange;
 500                 $rc->mAttribs = array(
 501                         'rc_timestamp'  => $timestamp,
 502                         'rc_cur_time'   => $timestamp,
 503                         'rc_namespace'  => $target->getNamespace(),
 504                         'rc_title'      => $target->getDBkey(),
 505                         'rc_type'       => RC_LOG,
 506                         'rc_minor'      => 0,
 507                         'rc_cur_id'     => $target->getArticleID(),
 508                         'rc_user'       => $user->getId(),
 509                         'rc_user_text'  => $user->getName(),
 510                         'rc_comment'    => $logComment,
 511                         'rc_this_oldid' => 0,
 512                         'rc_last_oldid' => 0,
 513                         'rc_bot'        => $user->isAllowed( 'bot' ) ? $wgRequest->getBool( 'bot', true ) : 0,
 514                         'rc_moved_to_ns'        => 0,
 515                         'rc_moved_to_title'     => '',
 516                         'rc_ip' => $ip,
 517                         'rc_patrolled' => 1,
 518                         'rc_new'        => 0, # obsolete
 519                         'rc_old_len'    => NULL,
 520                         'rc_new_len'    => NULL,
 521                         'rc_deleted'    => 0,
 522                         'rc_logid'              => $newId,
 523                         'rc_log_type'   => $type,
 524                         'rc_log_action' => $action,
 525                         'rc_params'             => $params
 526                 );
 527                 $rc->mExtra =  array(
 528                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 529                         'lastTimestamp' => 0,
 530                         'actionComment' => $actionComment, // the comment appended to the action, passed from LogPage
 531                 );
 532                 $rc->save();
 533         }
 534
 535         # Initialises the members of this object from a mysql row object
 536         function loadFromRow( $row )
 537         {
 538                 $this->mAttribs = get_object_vars( $row );
 539                 $this->mAttribs["rc_timestamp"] = wfTimestamp(TS_MW, $this->mAttribs["rc_timestamp"]);
 540                 $this->mExtra = array();
 541         }
 542
 543         # Makes a pseudo-RC entry from a cur row
 544         function loadFromCurRow( $row )
 545         {
 546                 $this->mAttribs = array(
 547                         'rc_timestamp' => wfTimestamp(TS_MW, $row->rev_timestamp),
 548                         'rc_cur_time' => $row->rev_timestamp,
 549                         'rc_user' => $row->rev_user,
 550                         'rc_user_text' => $row->rev_user_text,
 551                         'rc_namespace' => $row->page_namespace,
 552                         'rc_title' => $row->page_title,
 553                         'rc_comment' => $row->rev_comment,
 554                         'rc_minor' => $row->rev_minor_edit ? 1 : 0,
 555                         'rc_type' => $row->page_is_new ? RC_NEW : RC_EDIT,
 556                         'rc_cur_id' => $row->page_id,
 557                         'rc_this_oldid' => $row->rev_id,
 558                         'rc_last_oldid' => isset($row->rc_last_oldid) ? $row->rc_last_oldid : 0,
 559                         'rc_bot'        => 0,
 560                         'rc_moved_to_ns'        => 0,
 561                         'rc_moved_to_title'     => '',
 562                         'rc_ip' => '',
 563                         'rc_id' => $row->rc_id,
 564                         'rc_patrolled' => $row->rc_patrolled,
 565                         'rc_new' => $row->page_is_new, # obsolete
 566                         'rc_old_len' => $row->rc_old_len,
 567                         'rc_new_len' => $row->rc_new_len,
 568                         'rc_params' => isset($row->rc_params) ? $row->rc_params : '',
 569                         'rc_log_type' => isset($row->rc_log_type) ? $row->rc_log_type : null,
 570                         'rc_log_action' => isset($row->rc_log_action) ? $row->rc_log_action : null,
 571                         'rc_log_id' => isset($row->rc_log_id) ? $row->rc_log_id: 0,
 572                         // this one REALLY should be set...
 573                         'rc_deleted' => isset($row->rc_deleted) ? $row->rc_deleted: 0,
 574                 );
 575
 576                 $this->mExtra = array();
 577         }
 578
 579         /**
 580          * Get an attribute value
 581          *
 582          * @param $name Attribute name
 583          * @return mixed
 584          */
 585         public function getAttribute( $name ) {
 586                 return isset( $this->mAttribs[$name] ) ? $this->mAttribs[$name] : NULL;
 587         }
 588
 589         /**
 590          * Gets the end part of the diff URL associated with this object
 591          * Blank if no diff link should be displayed
 592          */
 593         function diffLinkTrail( $forceCur )
 594         {
 595                 if ( $this->mAttribs['rc_type'] == RC_EDIT ) {
 596                         $trail = "curid=" . (int)($this->mAttribs['rc_cur_id']) .
 597                                 "&oldid=" . (int)($this->mAttribs['rc_last_oldid']);
 598                         if ( $forceCur ) {
 599                                 $trail .= '&diff=0' ;
 600                         } else {
 601                                 $trail .= '&diff=' . (int)($this->mAttribs['rc_this_oldid']);
 602                         }
 603                 } else {
 604                         $trail = '';
 605                 }
 606                 return $trail;
 607         }
 608
 609         function getIRCLine() {
 610                 global $wgUseRCPatrol;
 611
 612                 // FIXME: Would be good to replace these 2 extract() calls with something more explicit
 613                 // e.g. list ($rc_type, $rc_id) = array_values ($this->mAttribs); [or something like that]
 614                 extract($this->mAttribs);
 615                 extract($this->mExtra);
 616
 617                 if ( $rc_type == RC_LOG ) {
 618                         $titleObj = Title::newFromText( "Log/$rc_log_type", NS_SPECIAL );
 619                 } else {
 620                         $titleObj =& $this->getTitle();
 621                 }
 622                 $title = $titleObj->getPrefixedText();
 623                 $title = self::cleanupForIRC( $title );
 624
 625                 // FIXME: *HACK* these should be getFullURL(), hacked for SSL madness --brion 2005-12-26
 626                 if ( $rc_type == RC_LOG ) {
 627                         $url = '';
 628                 } elseif ( $rc_new && $wgUseRCPatrol ) {
 629                         $url = $titleObj->getInternalURL("rcid=$rc_id");
 630                 } else if ( $rc_new ) {
 631                         $url = $titleObj->getInternalURL();
 632                 } else if ( $wgUseRCPatrol ) {
 633                         $url = $titleObj->getInternalURL("diff=$rc_this_oldid&oldid=$rc_last_oldid&rcid=$rc_id");
 634                 } else {
 635                         $url = $titleObj->getInternalURL("diff=$rc_this_oldid&oldid=$rc_last_oldid");
 636                 }
 637
 638                 if ( isset( $oldSize ) && isset( $newSize ) ) {
 639                         $szdiff = $newSize - $oldSize;
 640                         if ($szdiff < -500) {
 641                                 $szdiff = "\002$szdiff\002";
 642                         } elseif ($szdiff >= 0) {
 643                                 $szdiff = '+' . $szdiff ;
 644                         }
 645                         $szdiff = '(' . $szdiff . ')' ;
 646                 } else {
 647                         $szdiff = '';
 648                 }
 649
 650                 $user = self::cleanupForIRC( $rc_user_text );
 651
 652                 if ( $rc_type == RC_LOG ) {
 653                         $targetText = $this->getTitle()->getPrefixedText();
 654                         $comment = self::cleanupForIRC( str_replace("[[$targetText]]","[[\00302$targetText\00310]]",$actionComment) );
 655                         $flag = $rc_log_action;
 656                 } else {
 657                         $comment = self::cleanupForIRC( $rc_comment );
 658                         $flag = ($rc_new ? "N" : "") . ($rc_minor ? "M" : "") . ($rc_bot ? "B" : "");
 659                 }
 660                 # see http://www.irssi.org/documentation/formats for some colour codes. prefix is \003,
 661                 # no colour (\003) switches back to the term default
 662                 $fullString = "\00314[[\00307$title\00314]]\0034 $flag\00310 " .
 663                               "\00302$url\003 \0035*\003 \00303$user\003 \0035*\003 $szdiff \00310$comment\003\n";
 664                 return $fullString;
 665         }
 666
 667         /**
 668          * Returns the change size (HTML).
 669          * The lengths can be given optionally.
 670          */
 671         function getCharacterDifference( $old = 0, $new = 0 ) {
 672                 global $wgRCChangedSizeThreshold, $wgLang;
 673
 674                 if( $old === 0 ) {
 675                         $old = $this->mAttribs['rc_old_len'];
 676                 }
 677                 if( $new === 0 ) {
 678                         $new = $this->mAttribs['rc_new_len'];
 679                 }
 680
 681                 if( $old === NULL || $new === NULL ) {
 682                         return '';
 683                 }
 684
 685                 $szdiff = $new - $old;
 686                 $formatedSize = wfMsgExt( 'rc-change-size', array( 'parsemag', 'escape'),
 687                         $wgLang->formatNum($szdiff) );
 688
 689
 690                 if( abs( $szdiff ) > abs( $wgRCChangedSizeThreshold ) ) {
 691                         $tag = 'strong';
 692                 }
 693                 else{
 694                     $tag = 'span';
 695                 }
 696
 697                 if( $szdiff === 0 ) {
 698                         return "<$tag class='mw-plusminus-null'>($formatedSize)</$tag>";
 699                 } elseif( $szdiff > 0 ) {
 700                         return "<$tag class='mw-plusminus-pos'>(+$formatedSize)</$tag>";
 701             } else {
 702                         return "<$tag class='mw-plusminus-neg'>($formatedSize)</$tag>";
 703                 }
 704         }
 705 }