includes/RecentChange.php

   1 <?php
   2 /**
   3  * Utility class for creating and accessing recent change entries.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  */
  22
  23 /**
  24  * Utility class for creating new RC entries
  25  *
  26  * mAttribs:
  27  *  rc_id           id of the row in the recentchanges table
  28  *  rc_timestamp    time the entry was made
  29  *  rc_cur_time     timestamp on the cur row
  30  *  rc_namespace    namespace #
  31  *  rc_title        non-prefixed db key
  32  *  rc_type         is new entry, used to determine whether updating is necessary
  33  *  rc_minor        is minor
  34  *  rc_cur_id       page_id of associated page entry
  35  *  rc_user         user id who made the entry
  36  *  rc_user_text    user name who made the entry
  37  *  rc_comment      edit summary
  38  *  rc_this_oldid   rev_id associated with this entry (or zero)
  39  *  rc_last_oldid   rev_id associated with the entry before this one (or zero)
  40  *  rc_bot          is bot, hidden
  41  *  rc_ip           IP address of the user in dotted quad notation
  42  *  rc_new          obsolete, use rc_type==RC_NEW
  43  *  rc_patrolled    boolean whether or not someone has marked this edit as patrolled
  44  *  rc_old_len      integer byte length of the text before the edit
  45  *  rc_new_len      the same after the edit
  46  *  rc_deleted      partial deletion
  47  *  rc_logid        the log_id value for this log entry (or zero)
  48  *  rc_log_type     the log type (or null)
  49  *  rc_log_action   the log action (or null)
  50  *  rc_params       log params
  51  *
  52  * mExtra:
  53  *  prefixedDBkey   prefixed db key, used by external app via msg queue
  54  *  lastTimestamp   timestamp of previous entry, used in WHERE clause during update
  55  *  lang            the interwiki prefix, automatically set in save()
  56  *  oldSize         text size before the change
  57  *  newSize         text size after the change
  58  *
  59  * temporary:       not stored in the database
  60  *      notificationtimestamp
  61  *      numberofWatchingusers
  62  *
  63  * @todo document functions and variables
  64  */
  65 class RecentChange {
  66         var $mAttribs = array(), $mExtra = array();
  67
  68         /**
  69          * @var Title
  70          */
  71         var $mTitle = false;
  72
  73         /**
  74          * @var Title
  75          */
  76         var $mMovedToTitle = false;
  77         var $numberofWatchingusers = 0 ; # Dummy to prevent error message in SpecialRecentchangeslinked
  78         var $notificationtimestamp;
  79
  80         # Factory methods
  81
  82         /**
  83          * @param $row
  84          * @return RecentChange
  85          */
  86         public static function newFromRow( $row ) {
  87                 $rc = new RecentChange;
  88                 $rc->loadFromRow( $row );
  89                 return $rc;
  90         }
  91
  92         /**
  93          * @param $row
  94          * @return RecentChange
  95          */
  96         public static function newFromCurRow( $row ) {
  97                 $rc = new RecentChange;
  98                 $rc->loadFromCurRow( $row );
  99                 $rc->notificationtimestamp = false;
 100                 $rc->numberofWatchingusers = false;
 101                 return $rc;
 102         }
 103
 104         /**
 105          * Obtain the recent change with a given rc_id value
 106          *
 107          * @param $rcid Int rc_id value to retrieve
 108          * @return RecentChange
 109          */
 110         public static function newFromId( $rcid ) {
 111                 $dbr = wfGetDB( DB_SLAVE );
 112                 $row = $dbr->selectRow( 'recentchanges', '*', array( 'rc_id' => $rcid ), __METHOD__ );
 113                 if( $row !== false ) {
 114                         return self::newFromRow( $row );
 115                 } else {
 116                         return null;
 117                 }
 118         }
 119
 120         /**
 121          * Find the first recent change matching some specific conditions
 122          *
 123          * @param $conds Array of conditions
 124          * @param $fname Mixed: override the method name in profiling/logs
 125          * @return RecentChange
 126          */
 127         public static function newFromConds( $conds, $fname = __METHOD__ ) {
 128                 $dbr = wfGetDB( DB_SLAVE );
 129                 $res = $dbr->select(
 130                         'recentchanges',
 131                         '*',
 132                         $conds,
 133                         $fname
 134                 );
 135                 if( $res instanceof ResultWrapper && $res->numRows() > 0 ) {
 136                         $row = $res->fetchObject();
 137                         $res->free();
 138                         return self::newFromRow( $row );
 139                 }
 140                 return null;
 141         }
 142
 143         # Accessors
 144
 145         /**
 146          * @param $attribs array
 147          */
 148         public function setAttribs( $attribs ) {
 149                 $this->mAttribs = $attribs;
 150         }
 151
 152         /**
 153          * @param $extra array
 154          */
 155         public function setExtra( $extra ) {
 156                 $this->mExtra = $extra;
 157         }
 158
 159         /**
 160          *
 161          * @return Title
 162          */
 163         public function &getTitle() {
 164                 if( $this->mTitle === false ) {
 165                         $this->mTitle = Title::makeTitle( $this->mAttribs['rc_namespace'], $this->mAttribs['rc_title'] );
 166                         # Make sure the correct page ID is process cached
 167                         $this->mTitle->resetArticleID( $this->mAttribs['rc_cur_id'] );
 168                 }
 169                 return $this->mTitle;
 170         }
 171
 172         /**
 173          * @return bool|\Title
 174          */
 175         public function getMovedToTitle() {
 176                 if( $this->mMovedToTitle === false ) {
 177                         $this->mMovedToTitle = Title::makeTitle( $this->mAttribs['rc_moved_to_ns'],
 178                                 $this->mAttribs['rc_moved_to_title'] );
 179                 }
 180                 return $this->mMovedToTitle;
 181         }
 182
 183         /**
 184          * Writes the data in this object to the database
 185          * @param $noudp bool
 186          */
 187         public function save( $noudp = false ) {
 188                 global $wgLocalInterwiki, $wgPutIPinRC, $wgContLang;
 189
 190                 $dbw = wfGetDB( DB_MASTER );
 191                 if( !is_array($this->mExtra) ) {
 192                         $this->mExtra = array();
 193                 }
 194                 $this->mExtra['lang'] = $wgLocalInterwiki;
 195
 196                 if( !$wgPutIPinRC ) {
 197                         $this->mAttribs['rc_ip'] = '';
 198                 }
 199
 200                 # If our database is strict about IP addresses, use NULL instead of an empty string
 201                 if( $dbw->strictIPs() and $this->mAttribs['rc_ip'] == '' ) {
 202                         unset( $this->mAttribs['rc_ip'] );
 203                 }
 204
 205                 # Make sure summary is truncated (whole multibyte characters)
 206                 $this->mAttribs['rc_comment'] = $wgContLang->truncate( $this->mAttribs['rc_comment'], 255 );
 207
 208                 # Fixup database timestamps
 209                 $this->mAttribs['rc_timestamp'] = $dbw->timestamp($this->mAttribs['rc_timestamp']);
 210                 $this->mAttribs['rc_cur_time'] = $dbw->timestamp($this->mAttribs['rc_cur_time']);
 211                 $this->mAttribs['rc_id'] = $dbw->nextSequenceValue( 'recentchanges_rc_id_seq' );
 212
 213                 ## If we are using foreign keys, an entry of 0 for the page_id will fail, so use NULL
 214                 if( $dbw->cascadingDeletes() and $this->mAttribs['rc_cur_id']==0 ) {
 215                         unset( $this->mAttribs['rc_cur_id'] );
 216                 }
 217
 218                 # Insert new row
 219                 $dbw->insert( 'recentchanges', $this->mAttribs, __METHOD__ );
 220
 221                 # Set the ID
 222                 $this->mAttribs['rc_id'] = $dbw->insertId();
 223
 224                 # Notify extensions
 225                 wfRunHooks( 'RecentChange_save', array( &$this ) );
 226
 227                 # Notify external application via UDP
 228                 if ( !$noudp ) {
 229                         $this->notifyRC2UDP();
 230                 }
 231
 232                 # E-mail notifications
 233                 global $wgUseEnotif, $wgShowUpdatedMarker, $wgUser;
 234                 if( $wgUseEnotif || $wgShowUpdatedMarker ) {
 235                         // Users
 236                         if( $this->mAttribs['rc_user'] ) {
 237                                 $editor = ($wgUser->getId() == $this->mAttribs['rc_user']) ?
 238                                         $wgUser : User::newFromID( $this->mAttribs['rc_user'] );
 239                         // Anons
 240                         } else {
 241                                 $editor = ($wgUser->getName() == $this->mAttribs['rc_user_text']) ?
 242                                         $wgUser : User::newFromName( $this->mAttribs['rc_user_text'], false );
 243                         }
 244                         $title = Title::makeTitle( $this->mAttribs['rc_namespace'], $this->mAttribs['rc_title'] );
 245
 246                         # @todo FIXME: This would be better as an extension hook
 247                         $enotif = new EmailNotification();
 248                         $status = $enotif->notifyOnPageChange( $editor, $title,
 249                                 $this->mAttribs['rc_timestamp'],
 250                                 $this->mAttribs['rc_comment'],
 251                                 $this->mAttribs['rc_minor'],
 252                                 $this->mAttribs['rc_last_oldid'] );
 253                 }
 254         }
 255
 256         public function notifyRC2UDP() {
 257                 global $wgRC2UDPAddress, $wgRC2UDPOmitBots;
 258                 # Notify external application via UDP
 259                 if( $wgRC2UDPAddress && ( !$this->mAttribs['rc_bot'] || !$wgRC2UDPOmitBots ) ) {
 260                         self::sendToUDP( $this->getIRCLine() );
 261                 }
 262         }
 263
 264         /**
 265          * Send some text to UDP.
 266          * @see RecentChange::cleanupForIRC
 267          * @param $line String: text to send
 268          * @param $address String: defaults to $wgRC2UDPAddress.
 269          * @param $prefix String: defaults to $wgRC2UDPPrefix.
 270          * @param $port Int: defaults to $wgRC2UDPPort. (Since 1.17)
 271          * @return Boolean: success
 272          */
 273         public static function sendToUDP( $line, $address = '', $prefix = '', $port = '' ) {
 274                 global $wgRC2UDPAddress, $wgRC2UDPPrefix, $wgRC2UDPPort;
 275                 # Assume default for standard RC case
 276                 $address = $address ? $address : $wgRC2UDPAddress;
 277                 $prefix = $prefix ? $prefix : $wgRC2UDPPrefix;
 278                 $port = $port ? $port : $wgRC2UDPPort;
 279                 # Notify external application via UDP
 280                 if( $address ) {
 281                         $conn = socket_create( AF_INET, SOCK_DGRAM, SOL_UDP );
 282                         if( $conn ) {
 283                                 $line = $prefix . $line;
 284                                 wfDebug( __METHOD__ . ": sending UDP line: $line\n" );
 285                                 socket_sendto( $conn, $line, strlen($line), 0, $address, $port );
 286                                 socket_close( $conn );
 287                                 return true;
 288                         } else {
 289                                 wfDebug( __METHOD__ . ": failed to create UDP socket\n" );
 290                         }
 291                 }
 292                 return false;
 293         }
 294
 295         /**
 296          * Remove newlines, carriage returns and decode html entites
 297          * @param $text String
 298          * @return String
 299          */
 300         public static function cleanupForIRC( $text ) {
 301                 return Sanitizer::decodeCharReferences( str_replace( array( "\n", "\r" ), array( "", "" ), $text ) );
 302         }
 303
 304         /**
 305          * Mark a given change as patrolled
 306          *
 307          * @param $change Mixed: RecentChange or corresponding rc_id
 308          * @param $auto Boolean: for automatic patrol
 309          * @return Array See doMarkPatrolled(), or null if $change is not an existing rc_id
 310          */
 311         public static function markPatrolled( $change, $auto = false ) {
 312                 global $wgUser;
 313
 314                 $change = $change instanceof RecentChange
 315                         ? $change
 316                         : RecentChange::newFromId($change);
 317
 318                 if( !$change instanceof RecentChange ) {
 319                         return null;
 320                 }
 321                 return $change->doMarkPatrolled( $wgUser, $auto );
 322         }
 323
 324         /**
 325          * Mark this RecentChange as patrolled
 326          *
 327          * NOTE: Can also return 'rcpatroldisabled', 'hookaborted' and 'markedaspatrollederror-noautopatrol' as errors
 328          * @param $user User object doing the action
 329          * @param $auto Boolean: for automatic patrol
 330          * @return array of permissions errors, see Title::getUserPermissionsErrors()
 331          */
 332         public function doMarkPatrolled( User $user, $auto = false ) {
 333                 global $wgUseRCPatrol, $wgUseNPPatrol;
 334                 $errors = array();
 335                 // If recentchanges patrol is disabled, only new pages
 336                 // can be patrolled
 337                 if( !$wgUseRCPatrol && ( !$wgUseNPPatrol || $this->getAttribute('rc_type') != RC_NEW ) ) {
 338                         $errors[] = array('rcpatroldisabled');
 339                 }
 340                 // Automatic patrol needs "autopatrol", ordinary patrol needs "patrol"
 341                 $right = $auto ? 'autopatrol' : 'patrol';
 342                 $errors = array_merge( $errors, $this->getTitle()->getUserPermissionsErrors( $right, $user ) );
 343                 if( !wfRunHooks('MarkPatrolled', array($this->getAttribute('rc_id'), &$user, false)) ) {
 344                         $errors[] = array('hookaborted');
 345                 }
 346                 // Users without the 'autopatrol' right can't patrol their
 347                 // own revisions
 348                 if( $user->getName() == $this->getAttribute('rc_user_text') && !$user->isAllowed('autopatrol') ) {
 349                         $errors[] = array('markedaspatrollederror-noautopatrol');
 350                 }
 351                 if( $errors ) {
 352                         return $errors;
 353                 }
 354                 // If the change was patrolled already, do nothing
 355                 if( $this->getAttribute('rc_patrolled') ) {
 356                         return array();
 357                 }
 358                 // Actually set the 'patrolled' flag in RC
 359                 $this->reallyMarkPatrolled();
 360                 // Log this patrol event
 361                 PatrolLog::record( $this, $auto, $user );
 362                 wfRunHooks( 'MarkPatrolledComplete', array($this->getAttribute('rc_id'), &$user, false) );
 363                 return array();
 364         }
 365
 366         /**
 367          * Mark this RecentChange patrolled, without error checking
 368          * @return Integer: number of affected rows
 369          */
 370         public function reallyMarkPatrolled() {
 371                 $dbw = wfGetDB( DB_MASTER );
 372                 $dbw->update(
 373                         'recentchanges',
 374                         array(
 375                                 'rc_patrolled' => 1
 376                         ),
 377                         array(
 378                                 'rc_id' => $this->getAttribute('rc_id')
 379                         ),
 380                         __METHOD__
 381                 );
 382                 return $dbw->affectedRows();
 383         }
 384
 385         /**
 386          * Makes an entry in the database corresponding to an edit
 387          *
 388          * @param $timestamp
 389          * @param $title Title
 390          * @param $minor
 391          * @param $user User
 392          * @param $comment
 393          * @param $oldId
 394          * @param $lastTimestamp
 395          * @param $bot
 396          * @param $ip string
 397          * @param $oldSize int
 398          * @param $newSize int
 399          * @param $newId int
 400          * @param $patrol int
 401          * @return RecentChange
 402          */
 403         public static function notifyEdit( $timestamp, &$title, $minor, &$user, $comment, $oldId,
 404                 $lastTimestamp, $bot, $ip='', $oldSize=0, $newSize=0, $newId=0, $patrol=0 ) {
 405                 $rc = new RecentChange;
 406                 $rc->mAttribs = array(
 407                         'rc_timestamp'  => $timestamp,
 408                         'rc_cur_time'   => $timestamp,
 409                         'rc_namespace'  => $title->getNamespace(),
 410                         'rc_title'      => $title->getDBkey(),
 411                         'rc_type'       => RC_EDIT,
 412                         'rc_minor'      => $minor ? 1 : 0,
 413                         'rc_cur_id'     => $title->getArticleID(),
 414                         'rc_user'       => $user->getId(),
 415                         'rc_user_text'  => $user->getName(),
 416                         'rc_comment'    => $comment,
 417                         'rc_this_oldid' => $newId,
 418                         'rc_last_oldid' => $oldId,
 419                         'rc_bot'        => $bot ? 1 : 0,
 420                         'rc_moved_to_ns' => 0,
 421                         'rc_moved_to_title' => '',
 422                         'rc_ip'         => self::checkIPAddress( $ip ),
 423                         'rc_patrolled'  => intval($patrol),
 424                         'rc_new'        => 0,  # obsolete
 425                         'rc_old_len'    => $oldSize,
 426                         'rc_new_len'    => $newSize,
 427                         'rc_deleted'    => 0,
 428                         'rc_logid'      => 0,
 429                         'rc_log_type'   => null,
 430                         'rc_log_action' => '',
 431                         'rc_params'     => ''
 432                 );
 433
 434                 $rc->mExtra =  array(
 435                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 436                         'lastTimestamp' => $lastTimestamp,
 437                         'oldSize'       => $oldSize,
 438                         'newSize'       => $newSize,
 439                 );
 440                 $rc->save();
 441                 return $rc;
 442         }
 443
 444         /**
 445          * Makes an entry in the database corresponding to page creation
 446          * Note: the title object must be loaded with the new id using resetArticleID()
 447          * @todo Document parameters and return
 448          *
 449          * @param $timestamp
 450          * @param $title Title
 451          * @param $minor
 452          * @param $user User
 453          * @param $comment
 454          * @param $bot
 455          * @param $ip string
 456          * @param $size int
 457          * @param $newId int
 458          * @param $patrol int
 459          * @return RecentChange
 460          */
 461         public static function notifyNew( $timestamp, &$title, $minor, &$user, $comment, $bot,
 462                 $ip='', $size=0, $newId=0, $patrol=0 ) {
 463                 $rc = new RecentChange;
 464                 $rc->mAttribs = array(
 465                         'rc_timestamp'      => $timestamp,
 466                         'rc_cur_time'       => $timestamp,
 467                         'rc_namespace'      => $title->getNamespace(),
 468                         'rc_title'          => $title->getDBkey(),
 469                         'rc_type'           => RC_NEW,
 470                         'rc_minor'          => $minor ? 1 : 0,
 471                         'rc_cur_id'         => $title->getArticleID(),
 472                         'rc_user'           => $user->getId(),
 473                         'rc_user_text'      => $user->getName(),
 474                         'rc_comment'        => $comment,
 475                         'rc_this_oldid'     => $newId,
 476                         'rc_last_oldid'     => 0,
 477                         'rc_bot'            => $bot ? 1 : 0,
 478                         'rc_moved_to_ns'    => 0,
 479                         'rc_moved_to_title' => '',
 480                         'rc_ip'             => self::checkIPAddress( $ip ),
 481                         'rc_patrolled'      => intval($patrol),
 482                         'rc_new'            => 1, # obsolete
 483                         'rc_old_len'        => 0,
 484                         'rc_new_len'        => $size,
 485                         'rc_deleted'        => 0,
 486                         'rc_logid'          => 0,
 487                         'rc_log_type'       => null,
 488                         'rc_log_action'     => '',
 489                         'rc_params'         => ''
 490                 );
 491
 492                 $rc->mExtra =  array(
 493                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 494                         'lastTimestamp' => 0,
 495                         'oldSize' => 0,
 496                         'newSize' => $size
 497                 );
 498                 $rc->save();
 499                 return $rc;
 500         }
 501
 502         /**
 503          * @param $timestamp
 504          * @param $title
 505          * @param $user
 506          * @param $actionComment
 507          * @param $ip string
 508          * @param $type
 509          * @param $action
 510          * @param $target
 511          * @param $logComment
 512          * @param $params
 513          * @param $newId int
 514          * @param $actionCommentIRC string
 515          * @return bool
 516          */
 517         public static function notifyLog( $timestamp, &$title, &$user, $actionComment, $ip, $type,
 518                 $action, $target, $logComment, $params, $newId=0, $actionCommentIRC='' )
 519         {
 520                 global $wgLogRestrictions;
 521                 # Don't add private logs to RC!
 522                 if( isset($wgLogRestrictions[$type]) && $wgLogRestrictions[$type] != '*' ) {
 523                         return false;
 524                 }
 525                 $rc = self::newLogEntry( $timestamp, $title, $user, $actionComment, $ip, $type, $action,
 526                         $target, $logComment, $params, $newId, $actionCommentIRC );
 527                 $rc->save();
 528                 return true;
 529         }
 530
 531         /**
 532          * @param $timestamp
 533          * @param $title Title
 534          * @param $user User
 535          * @param $actionComment
 536          * @param $ip string
 537          * @param $type
 538          * @param $action
 539          * @param $target Title
 540          * @param $logComment
 541          * @param $params
 542          * @param $newId int
 543          * @param $actionCommentIRC string
 544          * @return RecentChange
 545          */
 546         public static function newLogEntry( $timestamp, &$title, &$user, $actionComment, $ip,
 547                 $type, $action, $target, $logComment, $params, $newId=0, $actionCommentIRC='' ) {
 548                 global $wgRequest;
 549
 550                 $rc = new RecentChange;
 551                 $rc->mAttribs = array(
 552                         'rc_timestamp'  => $timestamp,
 553                         'rc_cur_time'   => $timestamp,
 554                         'rc_namespace'  => $target->getNamespace(),
 555                         'rc_title'      => $target->getDBkey(),
 556                         'rc_type'       => RC_LOG,
 557                         'rc_minor'      => 0,
 558                         'rc_cur_id'     => $target->getArticleID(),
 559                         'rc_user'       => $user->getId(),
 560                         'rc_user_text'  => $user->getName(),
 561                         'rc_comment'    => $logComment,
 562                         'rc_this_oldid' => 0,
 563                         'rc_last_oldid' => 0,
 564                         'rc_bot'        => $user->isAllowed( 'bot' ) ? $wgRequest->getBool( 'bot', true ) : 0,
 565                         'rc_moved_to_ns' => 0,
 566                         'rc_moved_to_title' => '',
 567                         'rc_ip'         => self::checkIPAddress( $ip ),
 568                         'rc_patrolled'  => 1,
 569                         'rc_new'        => 0, # obsolete
 570                         'rc_old_len'    => null,
 571                         'rc_new_len'    => null,
 572                         'rc_deleted'    => 0,
 573                         'rc_logid'      => $newId,
 574                         'rc_log_type'   => $type,
 575                         'rc_log_action' => $action,
 576                         'rc_params'     => $params
 577                 );
 578
 579                 $rc->mExtra =  array(
 580                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 581                         'lastTimestamp' => 0,
 582                         'actionComment' => $actionComment, // the comment appended to the action, passed from LogPage
 583                         'actionCommentIRC' => $actionCommentIRC
 584                 );
 585                 return $rc;
 586         }
 587
 588         /**
 589          * Initialises the members of this object from a mysql row object
 590          *
 591          * @param $row
 592          */
 593         public function loadFromRow( $row ) {
 594                 $this->mAttribs = get_object_vars( $row );
 595                 $this->mAttribs['rc_timestamp'] = wfTimestamp(TS_MW, $this->mAttribs['rc_timestamp']);
 596                 $this->mAttribs['rc_deleted'] = $row->rc_deleted; // MUST be set
 597         }
 598
 599         /**
 600          * Makes a pseudo-RC entry from a cur row
 601          *
 602          * @param $row
 603          */
 604         public function loadFromCurRow( $row ) {
 605                 $this->mAttribs = array(
 606                         'rc_timestamp' => wfTimestamp(TS_MW, $row->rev_timestamp),
 607                         'rc_cur_time' => $row->rev_timestamp,
 608                         'rc_user' => $row->rev_user,
 609                         'rc_user_text' => $row->rev_user_text,
 610                         'rc_namespace' => $row->page_namespace,
 611                         'rc_title' => $row->page_title,
 612                         'rc_comment' => $row->rev_comment,
 613                         'rc_minor' => $row->rev_minor_edit ? 1 : 0,
 614                         'rc_type' => $row->page_is_new ? RC_NEW : RC_EDIT,
 615                         'rc_cur_id' => $row->page_id,
 616                         'rc_this_oldid' => $row->rev_id,
 617                         'rc_last_oldid' => isset($row->rc_last_oldid) ? $row->rc_last_oldid : 0,
 618                         'rc_bot'        => 0,
 619                         'rc_moved_to_ns'        => 0,
 620                         'rc_moved_to_title'     => '',
 621                         'rc_ip' => '',
 622                         'rc_id' => $row->rc_id,
 623                         'rc_patrolled' => $row->rc_patrolled,
 624                         'rc_new' => $row->page_is_new, # obsolete
 625                         'rc_old_len' => $row->rc_old_len,
 626                         'rc_new_len' => $row->rc_new_len,
 627                         'rc_params' => isset($row->rc_params) ? $row->rc_params : '',
 628                         'rc_log_type' => isset($row->rc_log_type) ? $row->rc_log_type : null,
 629                         'rc_log_action' => isset($row->rc_log_action) ? $row->rc_log_action : null,
 630                         'rc_log_id' => isset($row->rc_log_id) ? $row->rc_log_id: 0,
 631                         'rc_deleted' => $row->rc_deleted // MUST be set
 632                 );
 633         }
 634
 635         /**
 636          * Get an attribute value
 637          *
 638          * @param $name String Attribute name
 639          * @return mixed
 640          */
 641         public function getAttribute( $name ) {
 642                 return isset( $this->mAttribs[$name] ) ? $this->mAttribs[$name] : null;
 643         }
 644
 645         /**
 646          * @return array
 647          */
 648         public function getAttributes() {
 649                 return $this->mAttribs;
 650         }
 651
 652         /**
 653          * Gets the end part of the diff URL associated with this object
 654          * Blank if no diff link should be displayed
 655          * @param $forceCur
 656          * @return string
 657          */
 658         public function diffLinkTrail( $forceCur ) {
 659                 if( $this->mAttribs['rc_type'] == RC_EDIT ) {
 660                         $trail = "curid=" . (int)($this->mAttribs['rc_cur_id']) .
 661                                 "&oldid=" . (int)($this->mAttribs['rc_last_oldid']);
 662                         if( $forceCur ) {
 663                                 $trail .= '&diff=0' ;
 664                         } else {
 665                                 $trail .= '&diff=' . (int)($this->mAttribs['rc_this_oldid']);
 666                         }
 667                 } else {
 668                         $trail = '';
 669                 }
 670                 return $trail;
 671         }
 672
 673         /**
 674          * @return string
 675          */
 676         public function getIRCLine() {
 677                 global $wgUseRCPatrol, $wgUseNPPatrol, $wgRC2UDPInterwikiPrefix, $wgLocalInterwiki,
 678                         $wgCanonicalServer, $wgScript;
 679
 680                 if( $this->mAttribs['rc_type'] == RC_LOG ) {
 681                         // Don't use SpecialPage::getTitleFor, backwards compatibility with
 682                         // IRC API which expects "Log".
 683                         $titleObj = Title::newFromText( 'Log/' . $this->mAttribs['rc_log_type'], NS_SPECIAL );
 684                 } else {
 685                         $titleObj =& $this->getTitle();
 686                 }
 687                 $title = $titleObj->getPrefixedText();
 688                 $title = self::cleanupForIRC( $title );
 689
 690                 if( $this->mAttribs['rc_type'] == RC_LOG ) {
 691                         $url = '';
 692                 } else {
 693                         $url = $wgCanonicalServer . $wgScript;
 694                         if( $this->mAttribs['rc_type'] == RC_NEW ) {
 695                                 $query = '?oldid=' . $this->mAttribs['rc_this_oldid'];
 696                         } else {
 697                                 $query = '?diff=' . $this->mAttribs['rc_this_oldid'] . '&oldid=' . $this->mAttribs['rc_last_oldid'];
 698                         }
 699                         if ( $wgUseRCPatrol || ( $this->mAttribs['rc_type'] == RC_NEW && $wgUseNPPatrol ) ) {
 700                                 $query .= '&rcid=' . $this->mAttribs['rc_id'];
 701                         }
 702                         // HACK: We need this hook for WMF's secure server setup
 703                         wfRunHooks( 'IRCLineURL', array( &$url, &$query ) );
 704                         $url .= $query;
 705                 }
 706
 707                 if( $this->mAttribs['rc_old_len'] !== null && $this->mAttribs['rc_new_len'] !== null ) {
 708                         $szdiff = $this->mAttribs['rc_new_len'] - $this->mAttribs['rc_old_len'];
 709                         if($szdiff < -500) {
 710                                 $szdiff = "\002$szdiff\002";
 711                         } elseif($szdiff >= 0) {
 712                                 $szdiff = '+' . $szdiff ;
 713                         }
 714                         // @todo i18n with parentheses in content language?
 715                         $szdiff = '(' . $szdiff . ')' ;
 716                 } else {
 717                         $szdiff = '';
 718                 }
 719
 720                 $user = self::cleanupForIRC( $this->mAttribs['rc_user_text'] );
 721
 722                 if ( $this->mAttribs['rc_type'] == RC_LOG ) {
 723                         $targetText = $this->getTitle()->getPrefixedText();
 724                         $comment = self::cleanupForIRC( str_replace( "[[$targetText]]", "[[\00302$targetText\00310]]", $this->mExtra['actionCommentIRC'] ) );
 725                         $flag = $this->mAttribs['rc_log_action'];
 726                 } else {
 727                         $comment = self::cleanupForIRC( $this->mAttribs['rc_comment'] );
 728                         $flag = '';
 729                         if ( !$this->mAttribs['rc_patrolled'] && ( $wgUseRCPatrol || $this->mAttribs['rc_new'] && $wgUseNPPatrol ) ) {
 730                                 $flag .= '!';
 731                         }
 732                         $flag .= ( $this->mAttribs['rc_new'] ? "N" : "" ) . ( $this->mAttribs['rc_minor'] ? "M" : "" ) . ( $this->mAttribs['rc_bot'] ? "B" : "" );
 733                 }
 734
 735                 if ( $wgRC2UDPInterwikiPrefix === true && $wgLocalInterwiki !== false ) {
 736                         $prefix = $wgLocalInterwiki;
 737                 } elseif ( $wgRC2UDPInterwikiPrefix ) {
 738                         $prefix = $wgRC2UDPInterwikiPrefix;
 739                 } else {
 740                         $prefix = false;
 741                 }
 742                 if ( $prefix !== false ) {
 743                         $titleString = "\00314[[\00303$prefix:\00307$title\00314]]";
 744                 } else {
 745                         $titleString = "\00314[[\00307$title\00314]]";
 746                 }
 747
 748                 # see http://www.irssi.org/documentation/formats for some colour codes. prefix is \003,
 749                 # no colour (\003) switches back to the term default
 750                 $fullString = "$titleString\0034 $flag\00310 " .
 751                                           "\00302$url\003 \0035*\003 \00303$user\003 \0035*\003 $szdiff \00310$comment\003\n";
 752
 753                 return $fullString;
 754         }
 755
 756         /**
 757          * Returns the change size (HTML).
 758          * The lengths can be given optionally.
 759          * @param $old int
 760          * @param $new int
 761          * @return string
 762          */
 763         public function getCharacterDifference( $old = 0, $new = 0 ) {
 764                 if( $old === 0 ) {
 765                         $old = $this->mAttribs['rc_old_len'];
 766                 }
 767                 if( $new === 0 ) {
 768                         $new = $this->mAttribs['rc_new_len'];
 769                 }
 770                 if( $old === null || $new === null ) {
 771                         return '';
 772                 }
 773                 return ChangesList::showCharacterDifference( $old, $new );
 774         }
 775
 776         private static function checkIPAddress( $ip ) {
 777                 global $wgRequest;
 778                 if ( $ip ) {
 779                         if ( !IP::isIPAddress( $ip ) ) {
 780                                 throw new MWException( "Attempt to write \"" . $ip . "\" as an IP address into recent changes" );
 781                         }
 782                 } else {
 783                         $ip = $wgRequest->getIP();
 784                         if( !$ip )
 785                                 $ip = '';
 786                 }
 787                 return $ip;
 788         }
 789 }