includes/RecentChange.php

   1 <?php
   2
   3 /**
   4  * Utility class for creating new RC entries
   5  *
   6  * mAttribs:
   7  *  rc_id           id of the row in the recentchanges table
   8  *  rc_timestamp    time the entry was made
   9  *  rc_cur_time     timestamp on the cur row
  10  *  rc_namespace    namespace #
  11  *  rc_title        non-prefixed db key
  12  *  rc_type         is new entry, used to determine whether updating is necessary
  13  *  rc_minor        is minor
  14  *  rc_cur_id       page_id of associated page entry
  15  *  rc_user         user id who made the entry
  16  *  rc_user_text    user name who made the entry
  17  *  rc_comment      edit summary
  18  *  rc_this_oldid   rev_id associated with this entry (or zero)
  19  *  rc_last_oldid   rev_id associated with the entry before this one (or zero)
  20  *  rc_bot          is bot, hidden
  21  *  rc_ip           IP address of the user in dotted quad notation
  22  *  rc_new          obsolete, use rc_type==RC_NEW
  23  *  rc_patrolled    boolean whether or not someone has marked this edit as patrolled
  24  *  rc_old_len      integer byte length of the text before the edit
  25  *  rc_new_len      the same after the edit
  26  *  rc_deleted      partial deletion
  27  *  rc_logid        the log_id value for this log entry (or zero)
  28  *  rc_log_type     the log type (or null)
  29  *  rc_log_action   the log action (or null)
  30  *  rc_params       log params
  31  *
  32  * mExtra:
  33  *  prefixedDBkey   prefixed db key, used by external app via msg queue
  34  *  lastTimestamp   timestamp of previous entry, used in WHERE clause during update
  35  *  lang            the interwiki prefix, automatically set in save()
  36  *  oldSize         text size before the change
  37  *  newSize         text size after the change
  38  *
  39  * temporary:       not stored in the database
  40  *      notificationtimestamp
  41  *      numberofWatchingusers
  42  *
  43  * @todo document functions and variables
  44  */
  45 class RecentChange {
  46         var $mAttribs = array(), $mExtra = array();
  47
  48         /**
  49          * @var Title
  50          */
  51         var $mTitle = false;
  52
  53         /**
  54          * @var Title
  55          */
  56         var $mMovedToTitle = false;
  57         var $numberofWatchingusers = 0 ; # Dummy to prevent error message in SpecialRecentchangeslinked
  58         var $notificationtimestamp;
  59
  60         # Factory methods
  61
  62         /**
  63          * @param $row
  64          * @return RecentChange
  65          */
  66         public static function newFromRow( $row ) {
  67                 $rc = new RecentChange;
  68                 $rc->loadFromRow( $row );
  69                 return $rc;
  70         }
  71
  72         /**
  73          * @param $row
  74          * @return RecentChange
  75          */
  76         public static function newFromCurRow( $row ) {
  77                 $rc = new RecentChange;
  78                 $rc->loadFromCurRow( $row );
  79                 $rc->notificationtimestamp = false;
  80                 $rc->numberofWatchingusers = false;
  81                 return $rc;
  82         }
  83
  84         /**
  85          * Obtain the recent change with a given rc_id value
  86          *
  87          * @param $rcid Int rc_id value to retrieve
  88          * @return RecentChange
  89          */
  90         public static function newFromId( $rcid ) {
  91                 $dbr = wfGetDB( DB_SLAVE );
  92                 $row = $dbr->selectRow( 'recentchanges', '*', array( 'rc_id' => $rcid ), __METHOD__ );
  93                 if( $row !== false ) {
  94                         return self::newFromRow( $row );
  95                 } else {
  96                         return null;
  97                 }
  98         }
  99
 100         /**
 101          * Find the first recent change matching some specific conditions
 102          *
 103          * @param $conds Array of conditions
 104          * @param $fname Mixed: override the method name in profiling/logs
 105          * @return RecentChange
 106          */
 107         public static function newFromConds( $conds, $fname = __METHOD__ ) {
 108                 $dbr = wfGetDB( DB_SLAVE );
 109                 $res = $dbr->select(
 110                         'recentchanges',
 111                         '*',
 112                         $conds,
 113                         $fname
 114                 );
 115                 if( $res instanceof ResultWrapper && $res->numRows() > 0 ) {
 116                         $row = $res->fetchObject();
 117                         $res->free();
 118                         return self::newFromRow( $row );
 119                 }
 120                 return null;
 121         }
 122
 123         # Accessors
 124
 125         /**
 126          * @param $attribs array
 127          */
 128         public function setAttribs( $attribs ) {
 129                 $this->mAttribs = $attribs;
 130         }
 131
 132         /**
 133          * @param $extra array
 134          */
 135         public function setExtra( $extra ) {
 136                 $this->mExtra = $extra;
 137         }
 138
 139         /**
 140          *
 141          * @return Title
 142          */
 143         public function &getTitle() {
 144                 if( $this->mTitle === false ) {
 145                         $this->mTitle = Title::makeTitle( $this->mAttribs['rc_namespace'], $this->mAttribs['rc_title'] );
 146                         # Make sure the correct page ID is process cached
 147                         $this->mTitle->resetArticleID( $this->mAttribs['rc_cur_id'] );
 148                 }
 149                 return $this->mTitle;
 150         }
 151
 152         /**
 153          * @return bool|\Title
 154          */
 155         public function getMovedToTitle() {
 156                 if( $this->mMovedToTitle === false ) {
 157                         $this->mMovedToTitle = Title::makeTitle( $this->mAttribs['rc_moved_to_ns'],
 158                                 $this->mAttribs['rc_moved_to_title'] );
 159                 }
 160                 return $this->mMovedToTitle;
 161         }
 162
 163         /**
 164          * Writes the data in this object to the database
 165          * @param $noudp bool
 166          */
 167         public function save( $noudp = false ) {
 168                 global $wgLocalInterwiki, $wgPutIPinRC, $wgContLang;
 169
 170                 $dbw = wfGetDB( DB_MASTER );
 171                 if( !is_array($this->mExtra) ) {
 172                         $this->mExtra = array();
 173                 }
 174                 $this->mExtra['lang'] = $wgLocalInterwiki;
 175
 176                 if( !$wgPutIPinRC ) {
 177                         $this->mAttribs['rc_ip'] = '';
 178                 }
 179
 180                 # If our database is strict about IP addresses, use NULL instead of an empty string
 181                 if( $dbw->strictIPs() and $this->mAttribs['rc_ip'] == '' ) {
 182                         unset( $this->mAttribs['rc_ip'] );
 183                 }
 184
 185                 # Make sure summary is truncated (whole multibyte characters)
 186                 $this->mAttribs['rc_comment'] = $wgContLang->truncate( $this->mAttribs['rc_comment'], 255 );
 187
 188                 # Fixup database timestamps
 189                 $this->mAttribs['rc_timestamp'] = $dbw->timestamp($this->mAttribs['rc_timestamp']);
 190                 $this->mAttribs['rc_cur_time'] = $dbw->timestamp($this->mAttribs['rc_cur_time']);
 191                 $this->mAttribs['rc_id'] = $dbw->nextSequenceValue( 'recentchanges_rc_id_seq' );
 192
 193                 ## If we are using foreign keys, an entry of 0 for the page_id will fail, so use NULL
 194                 if( $dbw->cascadingDeletes() and $this->mAttribs['rc_cur_id']==0 ) {
 195                         unset( $this->mAttribs['rc_cur_id'] );
 196                 }
 197
 198                 # Insert new row
 199                 $dbw->insert( 'recentchanges', $this->mAttribs, __METHOD__ );
 200
 201                 # Set the ID
 202                 $this->mAttribs['rc_id'] = $dbw->insertId();
 203
 204                 # Notify extensions
 205                 wfRunHooks( 'RecentChange_save', array( &$this ) );
 206
 207                 # Notify external application via UDP
 208                 if ( !$noudp ) {
 209                         $this->notifyRC2UDP();
 210                 }
 211
 212                 # E-mail notifications
 213                 global $wgUseEnotif, $wgShowUpdatedMarker, $wgUser;
 214                 if( $wgUseEnotif || $wgShowUpdatedMarker ) {
 215                         // Users
 216                         if( $this->mAttribs['rc_user'] ) {
 217                                 $editor = ($wgUser->getId() == $this->mAttribs['rc_user']) ?
 218                                         $wgUser : User::newFromID( $this->mAttribs['rc_user'] );
 219                         // Anons
 220                         } else {
 221                                 $editor = ($wgUser->getName() == $this->mAttribs['rc_user_text']) ?
 222                                         $wgUser : User::newFromName( $this->mAttribs['rc_user_text'], false );
 223                         }
 224                         $title = Title::makeTitle( $this->mAttribs['rc_namespace'], $this->mAttribs['rc_title'] );
 225
 226                         # @todo FIXME: This would be better as an extension hook
 227                         $enotif = new EmailNotification();
 228                         $status = $enotif->notifyOnPageChange( $editor, $title,
 229                                 $this->mAttribs['rc_timestamp'],
 230                                 $this->mAttribs['rc_comment'],
 231                                 $this->mAttribs['rc_minor'],
 232                                 $this->mAttribs['rc_last_oldid'] );
 233                 }
 234         }
 235
 236         public function notifyRC2UDP() {
 237                 global $wgRC2UDPAddress, $wgRC2UDPOmitBots;
 238                 # Notify external application via UDP
 239                 if( $wgRC2UDPAddress && ( !$this->mAttribs['rc_bot'] || !$wgRC2UDPOmitBots ) ) {
 240                         self::sendToUDP( $this->getIRCLine() );
 241                 }
 242         }
 243
 244         /**
 245          * Send some text to UDP.
 246          * @see RecentChange::cleanupForIRC
 247          * @param $line String: text to send
 248          * @param $address String: defaults to $wgRC2UDPAddress.
 249          * @param $prefix String: defaults to $wgRC2UDPPrefix.
 250          * @param $port Int: defaults to $wgRC2UDPPort. (Since 1.17)
 251          * @return Boolean: success
 252          */
 253         public static function sendToUDP( $line, $address = '', $prefix = '', $port = '' ) {
 254                 global $wgRC2UDPAddress, $wgRC2UDPPrefix, $wgRC2UDPPort;
 255                 # Assume default for standard RC case
 256                 $address = $address ? $address : $wgRC2UDPAddress;
 257                 $prefix = $prefix ? $prefix : $wgRC2UDPPrefix;
 258                 $port = $port ? $port : $wgRC2UDPPort;
 259                 # Notify external application via UDP
 260                 if( $address ) {
 261                         $conn = socket_create( AF_INET, SOCK_DGRAM, SOL_UDP );
 262                         if( $conn ) {
 263                                 $line = $prefix . $line;
 264                                 wfDebug( __METHOD__ . ": sending UDP line: $line\n" );
 265                                 socket_sendto( $conn, $line, strlen($line), 0, $address, $port );
 266                                 socket_close( $conn );
 267                                 return true;
 268                         } else {
 269                                 wfDebug( __METHOD__ . ": failed to create UDP socket\n" );
 270                         }
 271                 }
 272                 return false;
 273         }
 274
 275         /**
 276          * Remove newlines, carriage returns and decode html entites
 277          * @param $text String
 278          * @return String
 279          */
 280         public static function cleanupForIRC( $text ) {
 281                 return Sanitizer::decodeCharReferences( str_replace( array( "\n", "\r" ), array( "", "" ), $text ) );
 282         }
 283
 284         /**
 285          * Mark a given change as patrolled
 286          *
 287          * @param $change Mixed: RecentChange or corresponding rc_id
 288          * @param $auto Boolean: for automatic patrol
 289          * @return Array See doMarkPatrolled(), or null if $change is not an existing rc_id
 290          */
 291         public static function markPatrolled( $change, $auto = false ) {
 292                 global $wgUser;
 293
 294                 $change = $change instanceof RecentChange
 295                         ? $change
 296                         : RecentChange::newFromId($change);
 297
 298                 if( !$change instanceof RecentChange ) {
 299                         return null;
 300                 }
 301                 return $change->doMarkPatrolled( $wgUser, $auto );
 302         }
 303
 304         /**
 305          * Mark this RecentChange as patrolled
 306          *
 307          * NOTE: Can also return 'rcpatroldisabled', 'hookaborted' and 'markedaspatrollederror-noautopatrol' as errors
 308          * @param $user User object doing the action
 309          * @param $auto Boolean: for automatic patrol
 310          * @return array of permissions errors, see Title::getUserPermissionsErrors()
 311          */
 312         public function doMarkPatrolled( User $user, $auto = false ) {
 313                 global $wgUseRCPatrol, $wgUseNPPatrol;
 314                 $errors = array();
 315                 // If recentchanges patrol is disabled, only new pages
 316                 // can be patrolled
 317                 if( !$wgUseRCPatrol && ( !$wgUseNPPatrol || $this->getAttribute('rc_type') != RC_NEW ) ) {
 318                         $errors[] = array('rcpatroldisabled');
 319                 }
 320                 // Automatic patrol needs "autopatrol", ordinary patrol needs "patrol"
 321                 $right = $auto ? 'autopatrol' : 'patrol';
 322                 $errors = array_merge( $errors, $this->getTitle()->getUserPermissionsErrors( $right, $user ) );
 323                 if( !wfRunHooks('MarkPatrolled', array($this->getAttribute('rc_id'), &$user, false)) ) {
 324                         $errors[] = array('hookaborted');
 325                 }
 326                 // Users without the 'autopatrol' right can't patrol their
 327                 // own revisions
 328                 if( $user->getName() == $this->getAttribute('rc_user_text') && !$user->isAllowed('autopatrol') ) {
 329                         $errors[] = array('markedaspatrollederror-noautopatrol');
 330                 }
 331                 if( $errors ) {
 332                         return $errors;
 333                 }
 334                 // If the change was patrolled already, do nothing
 335                 if( $this->getAttribute('rc_patrolled') ) {
 336                         return array();
 337                 }
 338                 // Actually set the 'patrolled' flag in RC
 339                 $this->reallyMarkPatrolled();
 340                 // Log this patrol event
 341                 PatrolLog::record( $this, $auto, $user );
 342                 wfRunHooks( 'MarkPatrolledComplete', array($this->getAttribute('rc_id'), &$user, false) );
 343                 return array();
 344         }
 345
 346         /**
 347          * Mark this RecentChange patrolled, without error checking
 348          * @return Integer: number of affected rows
 349          */
 350         public function reallyMarkPatrolled() {
 351                 $dbw = wfGetDB( DB_MASTER );
 352                 $dbw->update(
 353                         'recentchanges',
 354                         array(
 355                                 'rc_patrolled' => 1
 356                         ),
 357                         array(
 358                                 'rc_id' => $this->getAttribute('rc_id')
 359                         ),
 360                         __METHOD__
 361                 );
 362                 return $dbw->affectedRows();
 363         }
 364
 365         /**
 366          * Makes an entry in the database corresponding to an edit
 367          *
 368          * @param $timestamp
 369          * @param $title Title
 370          * @param $minor
 371          * @param $user User
 372          * @param $comment
 373          * @param $oldId
 374          * @param $lastTimestamp
 375          * @param $bot
 376          * @param $ip string
 377          * @param $oldSize int
 378          * @param $newSize int
 379          * @param $newId int
 380          * @param $patrol int
 381          * @return RecentChange
 382          */
 383         public static function notifyEdit( $timestamp, &$title, $minor, &$user, $comment, $oldId,
 384                 $lastTimestamp, $bot, $ip='', $oldSize=0, $newSize=0, $newId=0, $patrol=0 ) {
 385                 $rc = new RecentChange;
 386                 $rc->mAttribs = array(
 387                         'rc_timestamp'  => $timestamp,
 388                         'rc_cur_time'   => $timestamp,
 389                         'rc_namespace'  => $title->getNamespace(),
 390                         'rc_title'      => $title->getDBkey(),
 391                         'rc_type'       => RC_EDIT,
 392                         'rc_minor'      => $minor ? 1 : 0,
 393                         'rc_cur_id'     => $title->getArticleID(),
 394                         'rc_user'       => $user->getId(),
 395                         'rc_user_text'  => $user->getName(),
 396                         'rc_comment'    => $comment,
 397                         'rc_this_oldid' => $newId,
 398                         'rc_last_oldid' => $oldId,
 399                         'rc_bot'        => $bot ? 1 : 0,
 400                         'rc_moved_to_ns' => 0,
 401                         'rc_moved_to_title' => '',
 402                         'rc_ip'         => self::checkIPAddress( $ip ),
 403                         'rc_patrolled'  => intval($patrol),
 404                         'rc_new'        => 0,  # obsolete
 405                         'rc_old_len'    => $oldSize,
 406                         'rc_new_len'    => $newSize,
 407                         'rc_deleted'    => 0,
 408                         'rc_logid'      => 0,
 409                         'rc_log_type'   => null,
 410                         'rc_log_action' => '',
 411                         'rc_params'     => ''
 412                 );
 413
 414                 $rc->mExtra =  array(
 415                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 416                         'lastTimestamp' => $lastTimestamp,
 417                         'oldSize'       => $oldSize,
 418                         'newSize'       => $newSize,
 419                 );
 420                 $rc->save();
 421                 return $rc;
 422         }
 423
 424         /**
 425          * Makes an entry in the database corresponding to page creation
 426          * Note: the title object must be loaded with the new id using resetArticleID()
 427          * @todo Document parameters and return
 428          *
 429          * @param $timestamp
 430          * @param $title Title
 431          * @param $minor
 432          * @param $user User
 433          * @param $comment
 434          * @param $bot
 435          * @param $ip string
 436          * @param $size int
 437          * @param $newId int
 438          * @param $patrol int
 439          * @return RecentChange
 440          */
 441         public static function notifyNew( $timestamp, &$title, $minor, &$user, $comment, $bot,
 442                 $ip='', $size=0, $newId=0, $patrol=0 ) {
 443                 $rc = new RecentChange;
 444                 $rc->mAttribs = array(
 445                         'rc_timestamp'      => $timestamp,
 446                         'rc_cur_time'       => $timestamp,
 447                         'rc_namespace'      => $title->getNamespace(),
 448                         'rc_title'          => $title->getDBkey(),
 449                         'rc_type'           => RC_NEW,
 450                         'rc_minor'          => $minor ? 1 : 0,
 451                         'rc_cur_id'         => $title->getArticleID(),
 452                         'rc_user'           => $user->getId(),
 453                         'rc_user_text'      => $user->getName(),
 454                         'rc_comment'        => $comment,
 455                         'rc_this_oldid'     => $newId,
 456                         'rc_last_oldid'     => 0,
 457                         'rc_bot'            => $bot ? 1 : 0,
 458                         'rc_moved_to_ns'    => 0,
 459                         'rc_moved_to_title' => '',
 460                         'rc_ip'             => self::checkIPAddress( $ip ),
 461                         'rc_patrolled'      => intval($patrol),
 462                         'rc_new'            => 1, # obsolete
 463                         'rc_old_len'        => 0,
 464                         'rc_new_len'        => $size,
 465                         'rc_deleted'        => 0,
 466                         'rc_logid'          => 0,
 467                         'rc_log_type'       => null,
 468                         'rc_log_action'     => '',
 469                         'rc_params'         => ''
 470                 );
 471
 472                 $rc->mExtra =  array(
 473                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 474                         'lastTimestamp' => 0,
 475                         'oldSize' => 0,
 476                         'newSize' => $size
 477                 );
 478                 $rc->save();
 479                 return $rc;
 480         }
 481
 482         /**
 483          * @param $timestamp
 484          * @param $title
 485          * @param $user
 486          * @param $actionComment
 487          * @param $ip string
 488          * @param $type
 489          * @param $action
 490          * @param $target
 491          * @param $logComment
 492          * @param $params
 493          * @param $newId int
 494          * @param $actionCommentIRC string
 495          * @return bool
 496          */
 497         public static function notifyLog( $timestamp, &$title, &$user, $actionComment, $ip, $type,
 498                 $action, $target, $logComment, $params, $newId=0, $actionCommentIRC='' )
 499         {
 500                 global $wgLogRestrictions;
 501                 # Don't add private logs to RC!
 502                 if( isset($wgLogRestrictions[$type]) && $wgLogRestrictions[$type] != '*' ) {
 503                         return false;
 504                 }
 505                 $rc = self::newLogEntry( $timestamp, $title, $user, $actionComment, $ip, $type, $action,
 506                         $target, $logComment, $params, $newId, $actionCommentIRC );
 507                 $rc->save();
 508                 return true;
 509         }
 510
 511         /**
 512          * @param $timestamp
 513          * @param $title Title
 514          * @param $user User
 515          * @param $actionComment
 516          * @param $ip string
 517          * @param $type
 518          * @param $action
 519          * @param $target Title
 520          * @param $logComment
 521          * @param $params
 522          * @param $newId int
 523          * @param $actionCommentIRC string
 524          * @return RecentChange
 525          */
 526         public static function newLogEntry( $timestamp, &$title, &$user, $actionComment, $ip,
 527                 $type, $action, $target, $logComment, $params, $newId=0, $actionCommentIRC='' ) {
 528                 global $wgRequest;
 529
 530                 $rc = new RecentChange;
 531                 $rc->mAttribs = array(
 532                         'rc_timestamp'  => $timestamp,
 533                         'rc_cur_time'   => $timestamp,
 534                         'rc_namespace'  => $target->getNamespace(),
 535                         'rc_title'      => $target->getDBkey(),
 536                         'rc_type'       => RC_LOG,
 537                         'rc_minor'      => 0,
 538                         'rc_cur_id'     => $target->getArticleID(),
 539                         'rc_user'       => $user->getId(),
 540                         'rc_user_text'  => $user->getName(),
 541                         'rc_comment'    => $logComment,
 542                         'rc_this_oldid' => 0,
 543                         'rc_last_oldid' => 0,
 544                         'rc_bot'        => $user->isAllowed( 'bot' ) ? $wgRequest->getBool( 'bot', true ) : 0,
 545                         'rc_moved_to_ns' => 0,
 546                         'rc_moved_to_title' => '',
 547                         'rc_ip'         => self::checkIPAddress( $ip ),
 548                         'rc_patrolled'  => 1,
 549                         'rc_new'        => 0, # obsolete
 550                         'rc_old_len'    => null,
 551                         'rc_new_len'    => null,
 552                         'rc_deleted'    => 0,
 553                         'rc_logid'      => $newId,
 554                         'rc_log_type'   => $type,
 555                         'rc_log_action' => $action,
 556                         'rc_params'     => $params
 557                 );
 558
 559                 $rc->mExtra =  array(
 560                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 561                         'lastTimestamp' => 0,
 562                         'actionComment' => $actionComment, // the comment appended to the action, passed from LogPage
 563                         'actionCommentIRC' => $actionCommentIRC
 564                 );
 565                 return $rc;
 566         }
 567
 568         /**
 569          * Initialises the members of this object from a mysql row object
 570          *
 571          * @param $row
 572          */
 573         public function loadFromRow( $row ) {
 574                 $this->mAttribs = get_object_vars( $row );
 575                 $this->mAttribs['rc_timestamp'] = wfTimestamp(TS_MW, $this->mAttribs['rc_timestamp']);
 576                 $this->mAttribs['rc_deleted'] = $row->rc_deleted; // MUST be set
 577         }
 578
 579         /**
 580          * Makes a pseudo-RC entry from a cur row
 581          *
 582          * @param $row
 583          */
 584         public function loadFromCurRow( $row ) {
 585                 $this->mAttribs = array(
 586                         'rc_timestamp' => wfTimestamp(TS_MW, $row->rev_timestamp),
 587                         'rc_cur_time' => $row->rev_timestamp,
 588                         'rc_user' => $row->rev_user,
 589                         'rc_user_text' => $row->rev_user_text,
 590                         'rc_namespace' => $row->page_namespace,
 591                         'rc_title' => $row->page_title,
 592                         'rc_comment' => $row->rev_comment,
 593                         'rc_minor' => $row->rev_minor_edit ? 1 : 0,
 594                         'rc_type' => $row->page_is_new ? RC_NEW : RC_EDIT,
 595                         'rc_cur_id' => $row->page_id,
 596                         'rc_this_oldid' => $row->rev_id,
 597                         'rc_last_oldid' => isset($row->rc_last_oldid) ? $row->rc_last_oldid : 0,
 598                         'rc_bot'        => 0,
 599                         'rc_moved_to_ns'        => 0,
 600                         'rc_moved_to_title'     => '',
 601                         'rc_ip' => '',
 602                         'rc_id' => $row->rc_id,
 603                         'rc_patrolled' => $row->rc_patrolled,
 604                         'rc_new' => $row->page_is_new, # obsolete
 605                         'rc_old_len' => $row->rc_old_len,
 606                         'rc_new_len' => $row->rc_new_len,
 607                         'rc_params' => isset($row->rc_params) ? $row->rc_params : '',
 608                         'rc_log_type' => isset($row->rc_log_type) ? $row->rc_log_type : null,
 609                         'rc_log_action' => isset($row->rc_log_action) ? $row->rc_log_action : null,
 610                         'rc_log_id' => isset($row->rc_log_id) ? $row->rc_log_id: 0,
 611                         'rc_deleted' => $row->rc_deleted // MUST be set
 612                 );
 613         }
 614
 615         /**
 616          * Get an attribute value
 617          *
 618          * @param $name String Attribute name
 619          * @return mixed
 620          */
 621         public function getAttribute( $name ) {
 622                 return isset( $this->mAttribs[$name] ) ? $this->mAttribs[$name] : null;
 623         }
 624
 625         /**
 626          * @return array
 627          */
 628         public function getAttributes() {
 629                 return $this->mAttribs;
 630         }
 631
 632         /**
 633          * Gets the end part of the diff URL associated with this object
 634          * Blank if no diff link should be displayed
 635          * @param $forceCur
 636          * @return string
 637          */
 638         public function diffLinkTrail( $forceCur ) {
 639                 if( $this->mAttribs['rc_type'] == RC_EDIT ) {
 640                         $trail = "curid=" . (int)($this->mAttribs['rc_cur_id']) .
 641                                 "&oldid=" . (int)($this->mAttribs['rc_last_oldid']);
 642                         if( $forceCur ) {
 643                                 $trail .= '&diff=0' ;
 644                         } else {
 645                                 $trail .= '&diff=' . (int)($this->mAttribs['rc_this_oldid']);
 646                         }
 647                 } else {
 648                         $trail = '';
 649                 }
 650                 return $trail;
 651         }
 652
 653         /**
 654          * @return string
 655          */
 656         public function getIRCLine() {
 657                 global $wgUseRCPatrol, $wgUseNPPatrol, $wgRC2UDPInterwikiPrefix, $wgLocalInterwiki,
 658                         $wgCanonicalServer, $wgScript;
 659
 660                 if( $this->mAttribs['rc_type'] == RC_LOG ) {
 661                         $titleObj = SpecialPage::getTitleFor( 'Log', $this->mAttribs['rc_log_type'] );
 662                 } else {
 663                         $titleObj =& $this->getTitle();
 664                 }
 665                 $title = $titleObj->getPrefixedText();
 666                 $title = self::cleanupForIRC( $title );
 667
 668                 if( $this->mAttribs['rc_type'] == RC_LOG ) {
 669                         $url = '';
 670                 } else {
 671                         $url = $wgCanonicalServer . $wgScript;
 672                         if( $this->mAttribs['rc_type'] == RC_NEW ) {
 673                                 $query = '?oldid=' . $this->mAttribs['rc_this_oldid'];
 674                         } else {
 675                                 $query = '?diff=' . $this->mAttribs['rc_this_oldid'] . '&oldid=' . $this->mAttribs['rc_last_oldid'];
 676                         }
 677                         if ( $wgUseRCPatrol || ( $this->mAttribs['rc_type'] == RC_NEW && $wgUseNPPatrol ) ) {
 678                                 $query .= '&rcid=' . $this->mAttribs['rc_id'];
 679                         }
 680                         // HACK: We need this hook for WMF's secure server setup
 681                         wfRunHooks( 'IRCLineURL', array( &$url, &$query ) );
 682                         $url .= $query;
 683                 }
 684
 685                 if( $this->mAttribs['rc_old_len'] !== null && $this->mAttribs['rc_new_len'] !== null ) {
 686                         $szdiff = $this->mAttribs['rc_new_len'] - $this->mAttribs['rc_old_len'];
 687                         if($szdiff < -500) {
 688                                 $szdiff = "\002$szdiff\002";
 689                         } elseif($szdiff >= 0) {
 690                                 $szdiff = '+' . $szdiff ;
 691                         }
 692                         // @todo i18n with parentheses in content language?
 693                         $szdiff = '(' . $szdiff . ')' ;
 694                 } else {
 695                         $szdiff = '';
 696                 }
 697
 698                 $user = self::cleanupForIRC( $this->mAttribs['rc_user_text'] );
 699
 700                 if ( $this->mAttribs['rc_type'] == RC_LOG ) {
 701                         $targetText = $this->getTitle()->getPrefixedText();
 702                         $comment = self::cleanupForIRC( str_replace( "[[$targetText]]", "[[\00302$targetText\00310]]", $this->mExtra['actionCommentIRC'] ) );
 703                         $flag = $this->mAttribs['rc_log_action'];
 704                 } else {
 705                         $comment = self::cleanupForIRC( $this->mAttribs['rc_comment'] );
 706                         $flag = '';
 707                         if ( !$this->mAttribs['rc_patrolled'] && ( $wgUseRCPatrol || $this->mAttribs['rc_new'] && $wgUseNPPatrol ) ) {
 708                                 $flag .= '!';
 709                         }
 710                         $flag .= ( $this->mAttribs['rc_new'] ? "N" : "" ) . ( $this->mAttribs['rc_minor'] ? "M" : "" ) . ( $this->mAttribs['rc_bot'] ? "B" : "" );
 711                 }
 712
 713                 if ( $wgRC2UDPInterwikiPrefix === true && $wgLocalInterwiki !== false ) {
 714                         $prefix = $wgLocalInterwiki;
 715                 } elseif ( $wgRC2UDPInterwikiPrefix ) {
 716                         $prefix = $wgRC2UDPInterwikiPrefix;
 717                 } else {
 718                         $prefix = false;
 719                 }
 720                 if ( $prefix !== false ) {
 721                         $titleString = "\00314[[\00303$prefix:\00307$title\00314]]";
 722                 } else {
 723                         $titleString = "\00314[[\00307$title\00314]]";
 724                 }
 725
 726                 # see http://www.irssi.org/documentation/formats for some colour codes. prefix is \003,
 727                 # no colour (\003) switches back to the term default
 728                 $fullString = "$titleString\0034 $flag\00310 " .
 729                                           "\00302$url\003 \0035*\003 \00303$user\003 \0035*\003 $szdiff \00310$comment\003\n";
 730
 731                 return $fullString;
 732         }
 733
 734         /**
 735          * Returns the change size (HTML).
 736          * The lengths can be given optionally.
 737          * @param $old int
 738          * @param $new int
 739          * @return string
 740          */
 741         public function getCharacterDifference( $old = 0, $new = 0 ) {
 742                 if( $old === 0 ) {
 743                         $old = $this->mAttribs['rc_old_len'];
 744                 }
 745                 if( $new === 0 ) {
 746                         $new = $this->mAttribs['rc_new_len'];
 747                 }
 748                 if( $old === null || $new === null ) {
 749                         return '';
 750                 }
 751                 return ChangesList::showCharacterDifference( $old, $new );
 752         }
 753
 754         public static function checkIPAddress( $ip ) {
 755                 global $wgRequest;
 756                 if ( $ip ) {
 757                         if ( !IP::isIPAddress( $ip ) ) {
 758                                 throw new MWException( "Attempt to write \"" . $ip . "\" as an IP address into recent changes" );
 759                         }
 760                 } else {
 761                         $ip = $wgRequest->getIP();
 762                         if( !$ip )
 763                                 $ip = '';
 764                 }
 765                 return $ip;
 766         }
 767 }