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                 $rc = new RecentChange;
  54                 $rc->loadFromRow( $row );
  55                 return $rc;
  56         }
  57
  58         public static function newFromCurRow( $row ) {
  59                 $rc = new RecentChange;
  60                 $rc->loadFromCurRow( $row );
  61                 $rc->notificationtimestamp = false;
  62                 $rc->numberofWatchingusers = false;
  63                 return $rc;
  64         }
  65
  66         /**
  67          * Obtain the recent change with a given rc_id value
  68          *
  69          * @param $rcid rc_id value to retrieve
  70          * @return RecentChange
  71          */
  72         public static function newFromId( $rcid ) {
  73                 $dbr = wfGetDB( DB_SLAVE );
  74                 $res = $dbr->select( 'recentchanges', '*', array( 'rc_id' => $rcid ), __METHOD__ );
  75                 if( $res && $dbr->numRows( $res ) > 0 ) {
  76                         $row = $dbr->fetchObject( $res );
  77                         $dbr->freeResult( $res );
  78                         return self::newFromRow( $row );
  79                 } else {
  80                         return NULL;
  81                 }
  82         }
  83
  84         /**
  85          * Find the first recent change matching some specific conditions
  86          *
  87          * @param array $conds Array of conditions
  88          * @param mixed $fname Override the method name in profiling/logs
  89          * @return RecentChange
  90          */
  91         public static function newFromConds( $conds, $fname = false ) {
  92                 if( $fname === false )
  93                         $fname = __METHOD__;
  94                 $dbr = wfGetDB( DB_SLAVE );
  95                 $res = $dbr->select(
  96                         'recentchanges',
  97                         '*',
  98                         $conds,
  99                         $fname
 100                 );
 101                 if( $res instanceof ResultWrapper && $res->numRows() > 0 ) {
 102                         $row = $res->fetchObject();
 103                         $res->free();
 104                         return self::newFromRow( $row );
 105                 }
 106                 return null;
 107         }
 108
 109         # Accessors
 110
 111         public function setAttribs( $attribs ) {
 112                 $this->mAttribs = $attribs;
 113         }
 114
 115         public function setExtra( $extra ) {
 116                 $this->mExtra = $extra;
 117         }
 118
 119         public function &getTitle() {
 120                 if( $this->mTitle === false ) {
 121                         $this->mTitle = Title::makeTitle( $this->mAttribs['rc_namespace'], $this->mAttribs['rc_title'] );
 122                 }
 123                 return $this->mTitle;
 124         }
 125
 126         public function getMovedToTitle() {
 127                 if( $this->mMovedToTitle === false ) {
 128                         $this->mMovedToTitle = Title::makeTitle( $this->mAttribs['rc_moved_to_ns'],
 129                                 $this->mAttribs['rc_moved_to_title'] );
 130                 }
 131                 return $this->mMovedToTitle;
 132         }
 133
 134         # Writes the data in this object to the database
 135         public function save() {
 136                 global $wgLocalInterwiki, $wgPutIPinRC, $wgRC2UDPAddress, $wgRC2UDPOmitBots;
 137                 $fname = 'RecentChange::save';
 138
 139                 $dbw = wfGetDB( DB_MASTER );
 140                 if( !is_array($this->mExtra) ) {
 141                         $this->mExtra = array();
 142                 }
 143                 $this->mExtra['lang'] = $wgLocalInterwiki;
 144
 145                 if( !$wgPutIPinRC ) {
 146                         $this->mAttribs['rc_ip'] = '';
 147                 }
 148
 149                 # If our database is strict about IP addresses, use NULL instead of an empty string
 150                 if( $dbw->strictIPs() and $this->mAttribs['rc_ip'] == '' ) {
 151                         unset( $this->mAttribs['rc_ip'] );
 152                 }
 153
 154                 # Fixup database timestamps
 155                 $this->mAttribs['rc_timestamp'] = $dbw->timestamp($this->mAttribs['rc_timestamp']);
 156                 $this->mAttribs['rc_cur_time'] = $dbw->timestamp($this->mAttribs['rc_cur_time']);
 157                 $this->mAttribs['rc_id'] = $dbw->nextSequenceValue( 'rc_rc_id_seq' );
 158
 159                 ## If we are using foreign keys, an entry of 0 for the page_id will fail, so use NULL
 160                 if( $dbw->cascadingDeletes() and $this->mAttribs['rc_cur_id']==0 ) {
 161                         unset ( $this->mAttribs['rc_cur_id'] );
 162                 }
 163
 164                 # Insert new row
 165                 $dbw->insert( 'recentchanges', $this->mAttribs, $fname );
 166
 167                 # Set the ID
 168                 $this->mAttribs['rc_id'] = $dbw->insertId();
 169
 170                 # Notify external application via UDP
 171                 if( $wgRC2UDPAddress && ( !$this->mAttribs['rc_bot'] || !$wgRC2UDPOmitBots ) ) {
 172                         self::sendToUDP( $this->getIRCLine() );
 173                 }
 174
 175                 # E-mail notifications
 176                 global $wgUseEnotif, $wgShowUpdatedMarker, $wgUser;
 177                 if( $wgUseEnotif || $wgShowUpdatedMarker ) {
 178                         // Users
 179                         if( $this->mAttribs['rc_user'] ) {
 180                                 $editor = ($wgUser->getId() == $this->mAttribs['rc_user']) ?
 181                                         $wgUser : User::newFromID( $this->mAttribs['rc_user'] );
 182                         // Anons
 183                         } else {
 184                                 $editor = ($wgUser->getName() == $this->mAttribs['rc_user_text']) ?
 185                                         $wgUser : User::newFromName( $this->mAttribs['rc_user_text'], false );
 186                         }
 187                         # FIXME: this would be better as an extension hook
 188                         $enotif = new EmailNotification();
 189                         $title = Title::makeTitle( $this->mAttribs['rc_namespace'], $this->mAttribs['rc_title'] );
 190                         $enotif->notifyOnPageChange( $editor, $title,
 191                                 $this->mAttribs['rc_timestamp'],
 192                                 $this->mAttribs['rc_comment'],
 193                                 $this->mAttribs['rc_minor'],
 194                                 $this->mAttribs['rc_last_oldid'] );
 195                 }
 196
 197                 # Notify extensions
 198                 wfRunHooks( 'RecentChange_save', array( &$this ) );
 199         }
 200
 201         /**
 202          * Send some text to UDP
 203          * @param string $line
 204          * @param string $prefix
 205          * @param string $address
 206          * @return bool success
 207          */
 208         public static function sendToUDP( $line, $address = '', $prefix = '' ) {
 209                 global $wgRC2UDPAddress, $wgRC2UDPPrefix, $wgRC2UDPPort;
 210                 # Assume default for standard RC case
 211                 $address = $address ? $address : $wgRC2UDPAddress;
 212                 $prefix = $prefix ? $prefix : $wgRC2UDPPrefix;
 213                 # Notify external application via UDP
 214                 if( $address ) {
 215                         $conn = socket_create( AF_INET, SOCK_DGRAM, SOL_UDP );
 216                         if( $conn ) {
 217                                 $line = $prefix . $line;
 218                                 wfDebug( __METHOD__ . ": sending UDP line: $line\n" );
 219                                 socket_sendto( $conn, $line, strlen($line), 0, $address, $wgRC2UDPPort );
 220                                 socket_close( $conn );
 221                                 return true;
 222                         } else {
 223                                 wfDebug( __METHOD__ . ": failed to create UDP socket\n" );
 224                         }
 225                 }
 226                 return false;
 227         }
 228
 229         /**
 230          * Remove newlines and carriage returns
 231          * @param string $line
 232          * @return string
 233          */
 234         public static function cleanupForIRC( $text ) {
 235                 return str_replace(array("\n", "\r"), array("", ""), $text);
 236         }
 237
 238         /**
 239          * Mark a given change as patrolled
 240          *
 241          * @param mixed $change RecentChange or corresponding rc_id
 242          * @param bool $auto for automatic patrol
 243          * @return See doMarkPatrolled(), or null if $change is not an existing rc_id
 244          */
 245         public static function markPatrolled( $change, $auto = false ) {
 246                 $change = $change instanceof RecentChange
 247                         ? $change
 248                         : RecentChange::newFromId($change);
 249                 if( !$change instanceof RecentChange ) {
 250                         return null;
 251                 }
 252                 return $change->doMarkPatrolled( $auto );
 253         }
 254
 255         /**
 256          * Mark this RecentChange as patrolled
 257          *
 258          * NOTE: Can also return 'rcpatroldisabled', 'hookaborted' and 'markedaspatrollederror-noautopatrol' as errors
 259          * @param bool $auto for automatic patrol
 260          * @return array of permissions errors, see Title::getUserPermissionsErrors()
 261          */
 262         public function doMarkPatrolled( $auto = false ) {
 263                 global $wgUser, $wgUseRCPatrol, $wgUseNPPatrol;
 264                 $errors = array();
 265                 // If recentchanges patrol is disabled, only new pages
 266                 // can be patrolled
 267                 if( !$wgUseRCPatrol && ( !$wgUseNPPatrol || $this->getAttribute('rc_type') != RC_NEW ) ) {
 268                         $errors[] = array('rcpatroldisabled');
 269                 }
 270                 // Automatic patrol needs "autopatrol", ordinary patrol needs "patrol"
 271                 $right = $auto ? 'autopatrol' : 'patrol';
 272                 $errors = array_merge( $errors, $this->getTitle()->getUserPermissionsErrors( $right, $wgUser ) );
 273                 if( !wfRunHooks('MarkPatrolled', array($this, &$wgUser, false)) ) {
 274                         $errors[] = array('hookaborted');
 275                 }
 276                 // Users without the 'autopatrol' right can't patrol their
 277                 // own revisions
 278                 if( $wgUser->getName() == $this->getAttribute('rc_user_text') && !$wgUser->isAllowed('autopatrol') ) {
 279                         $errors[] = array('markedaspatrollederror-noautopatrol');
 280                 }
 281                 if( $errors ) {
 282                         return $errors;
 283                 }
 284                 // If the change was patrolled already, do nothing
 285                 if( $this->getAttribute('rc_patrolled') ) {
 286                         return array();
 287                 }
 288                 // Actually set the 'patrolled' flag in RC
 289                 $this->reallyMarkPatrolled();
 290                 // Log this patrol event
 291                 PatrolLog::record( $this, $auto );
 292                 wfRunHooks( 'MarkPatrolledComplete', array($this->getAttribute('rc_id'), &$wgUser, false) );
 293                 return array();
 294         }
 295
 296         /**
 297          * Mark this RecentChange patrolled, without error checking
 298          * @return int Number of affected rows
 299          */
 300         public function reallyMarkPatrolled() {
 301                 $dbw = wfGetDB( DB_MASTER );
 302                 $dbw->update(
 303                         'recentchanges',
 304                         array(
 305                                 'rc_patrolled' => 1
 306                         ),
 307                         array(
 308                                 'rc_id' => $this->getAttribute('rc_id')
 309                         ),
 310                         __METHOD__
 311                 );
 312                 return $dbw->affectedRows();
 313         }
 314
 315         # Makes an entry in the database corresponding to an edit
 316         public static function notifyEdit( $timestamp, &$title, $minor, &$user, $comment, $oldId,
 317                 $lastTimestamp, $bot, $ip='', $oldSize=0, $newSize=0, $newId=0, $patrol=0 )
 318         {
 319                 if( !$ip ) {
 320                         $ip = wfGetIP();
 321                         if( !$ip ) {
 322                                 $ip = '';
 323                         }
 324                 }
 325
 326                 $rc = new RecentChange;
 327                 $rc->mAttribs = array(
 328                         'rc_timestamp'  => $timestamp,
 329                         'rc_cur_time'   => $timestamp,
 330                         'rc_namespace'  => $title->getNamespace(),
 331                         'rc_title'      => $title->getDBkey(),
 332                         'rc_type'       => RC_EDIT,
 333                         'rc_minor'      => $minor ? 1 : 0,
 334                         'rc_cur_id'     => $title->getArticleID(),
 335                         'rc_user'       => $user->getId(),
 336                         'rc_user_text'  => $user->getName(),
 337                         'rc_comment'    => $comment,
 338                         'rc_this_oldid' => $newId,
 339                         'rc_last_oldid' => $oldId,
 340                         'rc_bot'        => $bot ? 1 : 0,
 341                         'rc_moved_to_ns'        => 0,
 342                         'rc_moved_to_title'     => '',
 343                         'rc_ip'         => $ip,
 344                         'rc_patrolled'  => intval($patrol),
 345                         'rc_new'        => 0,  # obsolete
 346                         'rc_old_len'    => $oldSize,
 347                         'rc_new_len'    => $newSize,
 348                         'rc_deleted'    => 0,
 349                         'rc_logid'              => 0,
 350                         'rc_log_type'   => null,
 351                         'rc_log_action' => '',
 352                         'rc_params'             => ''
 353                 );
 354
 355                 $rc->mExtra =  array(
 356                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 357                         'lastTimestamp' => $lastTimestamp,
 358                         'oldSize'       => $oldSize,
 359                         'newSize'       => $newSize,
 360                 );
 361                 $rc->save();
 362                 return $rc;
 363         }
 364
 365         /**
 366          * Makes an entry in the database corresponding to page creation
 367          * Note: the title object must be loaded with the new id using resetArticleID()
 368          * @todo Document parameters and return
 369          */
 370         public static function notifyNew( $timestamp, &$title, $minor, &$user, $comment, $bot,
 371                 $ip='', $size=0, $newId=0, $patrol=0 )
 372         {
 373                 if( !$ip ) {
 374                         $ip = wfGetIP();
 375                         if( !$ip ) {
 376                                 $ip = '';
 377                         }
 378                 }
 379
 380                 $rc = new RecentChange;
 381                 $rc->mAttribs = array(
 382                         'rc_timestamp'      => $timestamp,
 383                         'rc_cur_time'       => $timestamp,
 384                         'rc_namespace'      => $title->getNamespace(),
 385                         'rc_title'          => $title->getDBkey(),
 386                         'rc_type'           => RC_NEW,
 387                         'rc_minor'          => $minor ? 1 : 0,
 388                         'rc_cur_id'         => $title->getArticleID(),
 389                         'rc_user'           => $user->getId(),
 390                         'rc_user_text'      => $user->getName(),
 391                         'rc_comment'        => $comment,
 392                         'rc_this_oldid'     => $newId,
 393                         'rc_last_oldid'     => 0,
 394                         'rc_bot'            => $bot ? 1 : 0,
 395                         'rc_moved_to_ns'    => 0,
 396                         'rc_moved_to_title' => '',
 397                         'rc_ip'             => $ip,
 398                         'rc_patrolled'      => intval($patrol),
 399                         'rc_new'                => 1, # obsolete
 400                         'rc_old_len'        => 0,
 401                         'rc_new_len'        => $size,
 402                         'rc_deleted'            => 0,
 403                         'rc_logid'                      => 0,
 404                         'rc_log_type'           => null,
 405                         'rc_log_action'         => '',
 406                         'rc_params'                     => ''
 407                 );
 408
 409                 $rc->mExtra =  array(
 410                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 411                         'lastTimestamp' => 0,
 412                         'oldSize' => 0,
 413                         'newSize' => $size
 414                 );
 415                 $rc->save();
 416                 return $rc;
 417         }
 418
 419         # Makes an entry in the database corresponding to a rename
 420         public static function notifyMove( $timestamp, &$oldTitle, &$newTitle, &$user, $comment, $ip='', $overRedir = false )
 421         {
 422                 global $wgRequest;
 423
 424                 if( !$ip ) {
 425                         $ip = wfGetIP();
 426                         if( !$ip ) {
 427                                 $ip = '';
 428                         }
 429                 }
 430
 431                 $rc = new RecentChange;
 432                 $rc->mAttribs = array(
 433                         'rc_timestamp'  => $timestamp,
 434                         'rc_cur_time'   => $timestamp,
 435                         'rc_namespace'  => $oldTitle->getNamespace(),
 436                         'rc_title'      => $oldTitle->getDBkey(),
 437                         'rc_type'       => $overRedir ? RC_MOVE_OVER_REDIRECT : RC_MOVE,
 438                         'rc_minor'      => 0,
 439                         'rc_cur_id'     => $oldTitle->getArticleID(),
 440                         'rc_user'       => $user->getId(),
 441                         'rc_user_text'  => $user->getName(),
 442                         'rc_comment'    => $comment,
 443                         'rc_this_oldid' => 0,
 444                         'rc_last_oldid' => 0,
 445                         'rc_bot'        => $user->isAllowed( 'bot' ) ? $wgRequest->getBool( 'bot' , true ) : 0,
 446                         'rc_moved_to_ns'        => $newTitle->getNamespace(),
 447                         'rc_moved_to_title'     => $newTitle->getDBkey(),
 448                         'rc_ip'         => $ip,
 449                         'rc_new'        => 0, # obsolete
 450                         'rc_patrolled'  => 1,
 451                         'rc_old_len'    => NULL,
 452                         'rc_new_len'    => NULL,
 453                         'rc_deleted'    => 0,
 454                         'rc_logid'              => 0, # notifyMove not used anymore
 455                         'rc_log_type'   => null,
 456                         'rc_log_action' => '',
 457                         'rc_params'             => ''
 458                 );
 459
 460                 $rc->mExtra = array(
 461                         'prefixedDBkey' => $oldTitle->getPrefixedDBkey(),
 462                         'lastTimestamp' => 0,
 463                         'prefixedMoveTo'        => $newTitle->getPrefixedDBkey()
 464                 );
 465                 $rc->save();
 466         }
 467
 468         public static function notifyMoveToNew( $timestamp, &$oldTitle, &$newTitle, &$user, $comment, $ip='' ) {
 469                 RecentChange::notifyMove( $timestamp, $oldTitle, $newTitle, $user, $comment, $ip, false );
 470         }
 471
 472         public static function notifyMoveOverRedirect( $timestamp, &$oldTitle, &$newTitle, &$user, $comment, $ip='' ) {
 473                 RecentChange::notifyMove( $timestamp, $oldTitle, $newTitle, $user, $comment, $ip, true );
 474         }
 475
 476         public static function notifyLog( $timestamp, &$title, &$user, $actionComment, $ip='',
 477            $type, $action, $target, $logComment, $params, $newId=0 )
 478         {
 479                 global $wgRequest;
 480
 481                 if( !$ip ) {
 482                         $ip = wfGetIP();
 483                         if( !$ip ) {
 484                                 $ip = '';
 485                         }
 486                 }
 487
 488                 $rc = new RecentChange;
 489                 $rc->mAttribs = array(
 490                         'rc_timestamp'  => $timestamp,
 491                         'rc_cur_time'   => $timestamp,
 492                         'rc_namespace'  => $target->getNamespace(),
 493                         'rc_title'      => $target->getDBkey(),
 494                         'rc_type'       => RC_LOG,
 495                         'rc_minor'      => 0,
 496                         'rc_cur_id'     => $target->getArticleID(),
 497                         'rc_user'       => $user->getId(),
 498                         'rc_user_text'  => $user->getName(),
 499                         'rc_comment'    => $logComment,
 500                         'rc_this_oldid' => 0,
 501                         'rc_last_oldid' => 0,
 502                         'rc_bot'        => $user->isAllowed( 'bot' ) ? $wgRequest->getBool( 'bot', true ) : 0,
 503                         'rc_moved_to_ns'        => 0,
 504                         'rc_moved_to_title'     => '',
 505                         'rc_ip' => $ip,
 506                         'rc_patrolled' => 1,
 507                         'rc_new'        => 0, # obsolete
 508                         'rc_old_len'    => NULL,
 509                         'rc_new_len'    => NULL,
 510                         'rc_deleted'    => 0,
 511                         'rc_logid'              => $newId,
 512                         'rc_log_type'   => $type,
 513                         'rc_log_action' => $action,
 514                         'rc_params'             => $params
 515                 );
 516                 $rc->mExtra =  array(
 517                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 518                         'lastTimestamp' => 0,
 519                         'actionComment' => $actionComment, // the comment appended to the action, passed from LogPage
 520                 );
 521                 $rc->save();
 522         }
 523
 524         # Initialises the members of this object from a mysql row object
 525         public function loadFromRow( $row ) {
 526                 $this->mAttribs = get_object_vars( $row );
 527                 $this->mAttribs['rc_timestamp'] = wfTimestamp(TS_MW, $this->mAttribs['rc_timestamp']);
 528                 $this->mAttribs['rc_deleted'] = $row->rc_deleted; // MUST be set
 529         }
 530
 531         # Makes a pseudo-RC entry from a cur row
 532         public function loadFromCurRow( $row ) {
 533                 $this->mAttribs = array(
 534                         'rc_timestamp' => wfTimestamp(TS_MW, $row->rev_timestamp),
 535                         'rc_cur_time' => $row->rev_timestamp,
 536                         'rc_user' => $row->rev_user,
 537                         'rc_user_text' => $row->rev_user_text,
 538                         'rc_namespace' => $row->page_namespace,
 539                         'rc_title' => $row->page_title,
 540                         'rc_comment' => $row->rev_comment,
 541                         'rc_minor' => $row->rev_minor_edit ? 1 : 0,
 542                         'rc_type' => $row->page_is_new ? RC_NEW : RC_EDIT,
 543                         'rc_cur_id' => $row->page_id,
 544                         'rc_this_oldid' => $row->rev_id,
 545                         'rc_last_oldid' => isset($row->rc_last_oldid) ? $row->rc_last_oldid : 0,
 546                         'rc_bot'        => 0,
 547                         'rc_moved_to_ns'        => 0,
 548                         'rc_moved_to_title'     => '',
 549                         'rc_ip' => '',
 550                         'rc_id' => $row->rc_id,
 551                         'rc_patrolled' => $row->rc_patrolled,
 552                         'rc_new' => $row->page_is_new, # obsolete
 553                         'rc_old_len' => $row->rc_old_len,
 554                         'rc_new_len' => $row->rc_new_len,
 555                         'rc_params' => isset($row->rc_params) ? $row->rc_params : '',
 556                         'rc_log_type' => isset($row->rc_log_type) ? $row->rc_log_type : null,
 557                         'rc_log_action' => isset($row->rc_log_action) ? $row->rc_log_action : null,
 558                         'rc_log_id' => isset($row->rc_log_id) ? $row->rc_log_id: 0,
 559                         'rc_deleted' => $row->rc_deleted // MUST be set
 560                 );
 561         }
 562
 563         /**
 564          * Get an attribute value
 565          *
 566          * @param $name Attribute name
 567          * @return mixed
 568          */
 569         public function getAttribute( $name ) {
 570                 return isset( $this->mAttribs[$name] ) ? $this->mAttribs[$name] : NULL;
 571         }
 572
 573         /**
 574          * Gets the end part of the diff URL associated with this object
 575          * Blank if no diff link should be displayed
 576          */
 577         public function diffLinkTrail( $forceCur ) {
 578                 if( $this->mAttribs['rc_type'] == RC_EDIT ) {
 579                         $trail = "curid=" . (int)($this->mAttribs['rc_cur_id']) .
 580                                 "&oldid=" . (int)($this->mAttribs['rc_last_oldid']);
 581                         if( $forceCur ) {
 582                                 $trail .= '&diff=0' ;
 583                         } else {
 584                                 $trail .= '&diff=' . (int)($this->mAttribs['rc_this_oldid']);
 585                         }
 586                 } else {
 587                         $trail = '';
 588                 }
 589                 return $trail;
 590         }
 591
 592         protected function getIRCLine() {
 593                 global $wgUseRCPatrol, $wgUseNPPatrol, $wgRC2UDPInterwikiPrefix, $wgLocalInterwiki;
 594
 595                 // FIXME: Would be good to replace these 2 extract() calls with something more explicit
 596                 // e.g. list ($rc_type, $rc_id) = array_values ($this->mAttribs); [or something like that]
 597                 extract($this->mAttribs);
 598                 extract($this->mExtra);
 599
 600                 if( $rc_type == RC_LOG ) {
 601                         $titleObj = Title::newFromText( "Log/$rc_log_type", NS_SPECIAL );
 602                 } else {
 603                         $titleObj =& $this->getTitle();
 604                 }
 605                 $title = $titleObj->getPrefixedText();
 606                 $title = self::cleanupForIRC( $title );
 607
 608                 if( $rc_type == RC_LOG ) {
 609                         $url = '';
 610                 } else {
 611                         if( $rc_type == RC_NEW ) {
 612                                 $url = "oldid=$rc_this_oldid";
 613                         } else {
 614                                 $url = "diff=$rc_this_oldid&oldid=$rc_last_oldid";
 615                         }
 616                         if( $wgUseRCPatrol || ($rc_type == RC_NEW && $wgUseNPPatrol) ) {
 617                                 $url .= "&rcid=$rc_id";
 618                         }
 619                         // XXX: *HACK* this should use getFullURL(), hacked for SSL madness --brion 2005-12-26
 620                         // XXX: *HACK^2* the preg_replace() undoes much of what getInternalURL() does, but we
 621                         // XXX: need to call it so that URL paths on the Wikimedia secure server can be fixed
 622                         // XXX: by a custom GetInternalURL hook --vyznev 2008-12-10
 623                         $url = preg_replace( '/title=[^&]*&/', '', $titleObj->getInternalURL( $url ) );
 624                 }
 625
 626                 if( isset( $oldSize ) && isset( $newSize ) ) {
 627                         $szdiff = $newSize - $oldSize;
 628                         if($szdiff < -500) {
 629                                 $szdiff = "\002$szdiff\002";
 630                         } elseif($szdiff >= 0) {
 631                                 $szdiff = '+' . $szdiff ;
 632                         }
 633                         $szdiff = '(' . $szdiff . ')' ;
 634                 } else {
 635                         $szdiff = '';
 636                 }
 637
 638                 $user = self::cleanupForIRC( $rc_user_text );
 639
 640                 if( $rc_type == RC_LOG ) {
 641                         $targetText = $this->getTitle()->getPrefixedText();
 642                         $comment = self::cleanupForIRC( str_replace("[[$targetText]]","[[\00302$targetText\00310]]",$actionComment) );
 643                         $flag = $rc_log_action;
 644                 } else {
 645                         $comment = self::cleanupForIRC( $rc_comment );
 646                         $flag = ($rc_new ? "N" : "") . ($rc_minor ? "M" : "") . ($rc_bot ? "B" : "");
 647                 }
 648
 649                 if ( $wgRC2UDPInterwikiPrefix === true ) {
 650                         $prefix = $wgLocalInterwiki;
 651                 } elseif ( $wgRC2UDPInterwikiPrefix ) {
 652                         $prefix = $wgRC2UDPInterwikiPrefix;
 653                 } else {
 654                         $prefix = false;
 655                 }
 656                 if ( $prefix !== false ) {
 657                         $titleString = "\00314[[\00303$prefix:\00307$title\00314]]";
 658                 } else {
 659                         $titleString = "\00314[[\00307$title\00314]]";
 660                 }
 661
 662                 # see http://www.irssi.org/documentation/formats for some colour codes. prefix is \003,
 663                 # no colour (\003) switches back to the term default
 664                 $fullString = "$titleString\0034 $flag\00310 " .
 665                               "\00302$url\003 \0035*\003 \00303$user\003 \0035*\003 $szdiff \00310$comment\003\n";
 666
 667                 return $fullString;
 668         }
 669
 670         /**
 671          * Returns the change size (HTML).
 672          * The lengths can be given optionally.
 673          */
 674         public function getCharacterDifference( $old = 0, $new = 0 ) {
 675                 if( $old === 0 ) {
 676                         $old = $this->mAttribs['rc_old_len'];
 677                 }
 678                 if( $new === 0 ) {
 679                         $new = $this->mAttribs['rc_new_len'];
 680                 }
 681                 if( $old === NULL || $new === NULL ) {
 682                         return '';
 683                 }
 684                 return ChangesList::showCharacterDifference( $old, $new );
 685         }
 686 }