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 User
  75          */
  76         private $mPerformer = false;
  77
  78         /**
  79          * @var Title
  80          */
  81         var $mMovedToTitle = false;
  82         var $numberofWatchingusers = 0 ; # Dummy to prevent error message in SpecialRecentchangeslinked
  83         var $notificationtimestamp;
  84
  85         # Factory methods
  86
  87         /**
  88          * @param $row
  89          * @return RecentChange
  90          */
  91         public static function newFromRow( $row ) {
  92                 $rc = new RecentChange;
  93                 $rc->loadFromRow( $row );
  94                 return $rc;
  95         }
  96
  97         /**
  98          * @param $row
  99          * @return RecentChange
 100          */
 101         public static function newFromCurRow( $row ) {
 102                 $rc = new RecentChange;
 103                 $rc->loadFromCurRow( $row );
 104                 $rc->notificationtimestamp = false;
 105                 $rc->numberofWatchingusers = false;
 106                 return $rc;
 107         }
 108
 109         /**
 110          * Obtain the recent change with a given rc_id value
 111          *
 112          * @param $rcid Int rc_id value to retrieve
 113          * @return RecentChange
 114          */
 115         public static function newFromId( $rcid ) {
 116                 return self::newFromConds( array( 'rc_id' => $rcid ), __METHOD__ );
 117         }
 118
 119         /**
 120          * Find the first recent change matching some specific conditions
 121          *
 122          * @param $conds Array of conditions
 123          * @param $fname Mixed: override the method name in profiling/logs
 124          * @return RecentChange
 125          */
 126         public static function newFromConds( $conds, $fname = __METHOD__ ) {
 127                 $dbr = wfGetDB( DB_SLAVE );
 128                 $row = $dbr->selectRow( 'recentchanges', '*', $conds, $fname );
 129                 if ( $row !== false ) {
 130                         return self::newFromRow( $row );
 131                 } else {
 132                         return null;
 133                 }
 134         }
 135
 136         # Accessors
 137
 138         /**
 139          * @param $attribs array
 140          */
 141         public function setAttribs( $attribs ) {
 142                 $this->mAttribs = $attribs;
 143         }
 144
 145         /**
 146          * @param $extra array
 147          */
 148         public function setExtra( $extra ) {
 149                 $this->mExtra = $extra;
 150         }
 151
 152         /**
 153          *
 154          * @return Title
 155          */
 156         public function &getTitle() {
 157                 if( $this->mTitle === false ) {
 158                         $this->mTitle = Title::makeTitle( $this->mAttribs['rc_namespace'], $this->mAttribs['rc_title'] );
 159                         # Make sure the correct page ID is process cached
 160                         $this->mTitle->resetArticleID( $this->mAttribs['rc_cur_id'] );
 161                 }
 162                 return $this->mTitle;
 163         }
 164
 165         /**
 166          * @return bool|Title
 167          */
 168         public function getMovedToTitle() {
 169                 if( $this->mMovedToTitle === false ) {
 170                         $this->mMovedToTitle = Title::makeTitle( $this->mAttribs['rc_moved_to_ns'],
 171                                 $this->mAttribs['rc_moved_to_title'] );
 172                 }
 173                 return $this->mMovedToTitle;
 174         }
 175
 176         /**
 177          * Get the User object of the person who performed this change.
 178          *
 179          * @return User
 180          */
 181         public function getPerformer() {
 182                 if ( $this->mPerformer === false ) {
 183                         if ( $this->mAttribs['rc_user'] ) {
 184                                 $this->mPerformer = User::newFromID( $this->mAttribs['rc_user'] );
 185                         } else {
 186                                 $this->mPerformer = User::newFromName( $this->mAttribs['rc_user_text'], false );
 187                         }
 188                 }
 189                 return $this->mPerformer;
 190         }
 191
 192         /**
 193          * Writes the data in this object to the database
 194          * @param $noudp bool
 195          */
 196         public function save( $noudp = false ) {
 197                 global $wgLocalInterwiki, $wgPutIPinRC, $wgUseEnotif, $wgShowUpdatedMarker, $wgContLang;
 198
 199                 $dbw = wfGetDB( DB_MASTER );
 200                 if( !is_array($this->mExtra) ) {
 201                         $this->mExtra = array();
 202                 }
 203                 $this->mExtra['lang'] = $wgLocalInterwiki;
 204
 205                 if( !$wgPutIPinRC ) {
 206                         $this->mAttribs['rc_ip'] = '';
 207                 }
 208
 209                 # If our database is strict about IP addresses, use NULL instead of an empty string
 210                 if( $dbw->strictIPs() and $this->mAttribs['rc_ip'] == '' ) {
 211                         unset( $this->mAttribs['rc_ip'] );
 212                 }
 213
 214                 # Make sure summary is truncated (whole multibyte characters)
 215                 $this->mAttribs['rc_comment'] = $wgContLang->truncate( $this->mAttribs['rc_comment'], 255 );
 216
 217                 # Fixup database timestamps
 218                 $this->mAttribs['rc_timestamp'] = $dbw->timestamp($this->mAttribs['rc_timestamp']);
 219                 $this->mAttribs['rc_cur_time'] = $dbw->timestamp($this->mAttribs['rc_cur_time']);
 220                 $this->mAttribs['rc_id'] = $dbw->nextSequenceValue( 'recentchanges_rc_id_seq' );
 221
 222                 ## If we are using foreign keys, an entry of 0 for the page_id will fail, so use NULL
 223                 if( $dbw->cascadingDeletes() and $this->mAttribs['rc_cur_id']==0 ) {
 224                         unset( $this->mAttribs['rc_cur_id'] );
 225                 }
 226
 227                 # Insert new row
 228                 $dbw->insert( 'recentchanges', $this->mAttribs, __METHOD__ );
 229
 230                 # Set the ID
 231                 $this->mAttribs['rc_id'] = $dbw->insertId();
 232
 233                 # Notify extensions
 234                 wfRunHooks( 'RecentChange_save', array( &$this ) );
 235
 236                 # Notify external application via UDP
 237                 if ( !$noudp ) {
 238                         $this->notifyRC2UDP();
 239                 }
 240
 241                 # E-mail notifications
 242                 if( $wgUseEnotif || $wgShowUpdatedMarker ) {
 243                         $editor = $this->getPerformer();
 244                         $title = $this->getTitle();
 245
 246                         if ( wfRunHooks( 'AbortEmailNotification', array($editor, $title) ) ) {
 247                                 # @todo FIXME: This would be better as an extension hook
 248                                 $enotif = new EmailNotification();
 249                                 $enotif->notifyOnPageChange( $editor, $title,
 250                                         $this->mAttribs['rc_timestamp'],
 251                                         $this->mAttribs['rc_comment'],
 252                                         $this->mAttribs['rc_minor'],
 253                                         $this->mAttribs['rc_last_oldid'] );
 254                         }
 255                 }
 256         }
 257
 258         public function notifyRC2UDP() {
 259                 global $wgRC2UDPAddress, $wgRC2UDPOmitBots;
 260                 # Notify external application via UDP
 261                 if( $wgRC2UDPAddress && ( !$this->mAttribs['rc_bot'] || !$wgRC2UDPOmitBots ) ) {
 262                         self::sendToUDP( $this->getIRCLine() );
 263                 }
 264         }
 265
 266         /**
 267          * Send some text to UDP.
 268          * @see RecentChange::cleanupForIRC
 269          * @param $line String: text to send
 270          * @param $address String: defaults to $wgRC2UDPAddress.
 271          * @param $prefix String: defaults to $wgRC2UDPPrefix.
 272          * @param $port Int: defaults to $wgRC2UDPPort. (Since 1.17)
 273          * @return Boolean: success
 274          */
 275         public static function sendToUDP( $line, $address = '', $prefix = '', $port = '' ) {
 276                 global $wgRC2UDPAddress, $wgRC2UDPPrefix, $wgRC2UDPPort;
 277                 # Assume default for standard RC case
 278                 $address = $address ? $address : $wgRC2UDPAddress;
 279                 $prefix = $prefix ? $prefix : $wgRC2UDPPrefix;
 280                 $port = $port ? $port : $wgRC2UDPPort;
 281                 # Notify external application via UDP
 282                 if( $address ) {
 283                         $conn = socket_create( AF_INET, SOCK_DGRAM, SOL_UDP );
 284                         if( $conn ) {
 285                                 $line = $prefix . $line;
 286                                 wfDebug( __METHOD__ . ": sending UDP line: $line\n" );
 287                                 socket_sendto( $conn, $line, strlen($line), 0, $address, $port );
 288                                 socket_close( $conn );
 289                                 return true;
 290                         } else {
 291                                 wfDebug( __METHOD__ . ": failed to create UDP socket\n" );
 292                         }
 293                 }
 294                 return false;
 295         }
 296
 297         /**
 298          * Remove newlines, carriage returns and decode html entites
 299          * @param $text String
 300          * @return String
 301          */
 302         public static function cleanupForIRC( $text ) {
 303                 return Sanitizer::decodeCharReferences( str_replace( array( "\n", "\r" ), array( "", "" ), $text ) );
 304         }
 305
 306         /**
 307          * Mark a given change as patrolled
 308          *
 309          * @param $change Mixed: RecentChange or corresponding rc_id
 310          * @param $auto Boolean: for automatic patrol
 311          * @return Array See doMarkPatrolled(), or null if $change is not an existing rc_id
 312          */
 313         public static function markPatrolled( $change, $auto = false ) {
 314                 global $wgUser;
 315
 316                 $change = $change instanceof RecentChange
 317                         ? $change
 318                         : RecentChange::newFromId($change);
 319
 320                 if( !$change instanceof RecentChange ) {
 321                         return null;
 322                 }
 323                 return $change->doMarkPatrolled( $wgUser, $auto );
 324         }
 325
 326         /**
 327          * Mark this RecentChange as patrolled
 328          *
 329          * NOTE: Can also return 'rcpatroldisabled', 'hookaborted' and 'markedaspatrollederror-noautopatrol' as errors
 330          * @param $user User object doing the action
 331          * @param $auto Boolean: for automatic patrol
 332          * @return array of permissions errors, see Title::getUserPermissionsErrors()
 333          */
 334         public function doMarkPatrolled( User $user, $auto = false ) {
 335                 global $wgUseRCPatrol, $wgUseNPPatrol;
 336                 $errors = array();
 337                 // If recentchanges patrol is disabled, only new pages
 338                 // can be patrolled
 339                 if( !$wgUseRCPatrol && ( !$wgUseNPPatrol || $this->getAttribute('rc_type') != RC_NEW ) ) {
 340                         $errors[] = array('rcpatroldisabled');
 341                 }
 342                 // Automatic patrol needs "autopatrol", ordinary patrol needs "patrol"
 343                 $right = $auto ? 'autopatrol' : 'patrol';
 344                 $errors = array_merge( $errors, $this->getTitle()->getUserPermissionsErrors( $right, $user ) );
 345                 if( !wfRunHooks('MarkPatrolled', array($this->getAttribute('rc_id'), &$user, false)) ) {
 346                         $errors[] = array('hookaborted');
 347                 }
 348                 // Users without the 'autopatrol' right can't patrol their
 349                 // own revisions
 350                 if( $user->getName() == $this->getAttribute('rc_user_text') && !$user->isAllowed('autopatrol') ) {
 351                         $errors[] = array('markedaspatrollederror-noautopatrol');
 352                 }
 353                 if( $errors ) {
 354                         return $errors;
 355                 }
 356                 // If the change was patrolled already, do nothing
 357                 if( $this->getAttribute('rc_patrolled') ) {
 358                         return array();
 359                 }
 360                 // Actually set the 'patrolled' flag in RC
 361                 $this->reallyMarkPatrolled();
 362                 // Log this patrol event
 363                 PatrolLog::record( $this, $auto, $user );
 364                 wfRunHooks( 'MarkPatrolledComplete', array($this->getAttribute('rc_id'), &$user, false) );
 365                 return array();
 366         }
 367
 368         /**
 369          * Mark this RecentChange patrolled, without error checking
 370          * @return Integer: number of affected rows
 371          */
 372         public function reallyMarkPatrolled() {
 373                 $dbw = wfGetDB( DB_MASTER );
 374                 $dbw->update(
 375                         'recentchanges',
 376                         array(
 377                                 'rc_patrolled' => 1
 378                         ),
 379                         array(
 380                                 'rc_id' => $this->getAttribute('rc_id')
 381                         ),
 382                         __METHOD__
 383                 );
 384                 return $dbw->affectedRows();
 385         }
 386
 387         /**
 388          * Makes an entry in the database corresponding to an edit
 389          *
 390          * @param $timestamp
 391          * @param $title Title
 392          * @param $minor
 393          * @param $user User
 394          * @param $comment
 395          * @param $oldId
 396          * @param $lastTimestamp
 397          * @param $bot
 398          * @param $ip string
 399          * @param $oldSize int
 400          * @param $newSize int
 401          * @param $newId int
 402          * @param $patrol int
 403          * @return RecentChange
 404          */
 405         public static function notifyEdit( $timestamp, &$title, $minor, &$user, $comment, $oldId,
 406                 $lastTimestamp, $bot, $ip='', $oldSize=0, $newSize=0, $newId=0, $patrol=0 ) {
 407                 $rc = new RecentChange;
 408                 $rc->mTitle = $title;
 409                 $rc->mPerformer = $user;
 410                 $rc->mAttribs = array(
 411                         'rc_timestamp'  => $timestamp,
 412                         'rc_cur_time'   => $timestamp,
 413                         'rc_namespace'  => $title->getNamespace(),
 414                         'rc_title'      => $title->getDBkey(),
 415                         'rc_type'       => RC_EDIT,
 416                         'rc_minor'      => $minor ? 1 : 0,
 417                         'rc_cur_id'     => $title->getArticleID(),
 418                         'rc_user'       => $user->getId(),
 419                         'rc_user_text'  => $user->getName(),
 420                         'rc_comment'    => $comment,
 421                         'rc_this_oldid' => $newId,
 422                         'rc_last_oldid' => $oldId,
 423                         'rc_bot'        => $bot ? 1 : 0,
 424                         'rc_moved_to_ns' => 0,
 425                         'rc_moved_to_title' => '',
 426                         'rc_ip'         => self::checkIPAddress( $ip ),
 427                         'rc_patrolled'  => intval($patrol),
 428                         'rc_new'        => 0,  # obsolete
 429                         'rc_old_len'    => $oldSize,
 430                         'rc_new_len'    => $newSize,
 431                         'rc_deleted'    => 0,
 432                         'rc_logid'      => 0,
 433                         'rc_log_type'   => null,
 434                         'rc_log_action' => '',
 435                         'rc_params'     => ''
 436                 );
 437
 438                 $rc->mExtra =  array(
 439                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 440                         'lastTimestamp' => $lastTimestamp,
 441                         'oldSize'       => $oldSize,
 442                         'newSize'       => $newSize,
 443                 );
 444                 $rc->save();
 445                 return $rc;
 446         }
 447
 448         /**
 449          * Makes an entry in the database corresponding to page creation
 450          * Note: the title object must be loaded with the new id using resetArticleID()
 451          * @todo Document parameters and return
 452          *
 453          * @param $timestamp
 454          * @param $title Title
 455          * @param $minor
 456          * @param $user User
 457          * @param $comment
 458          * @param $bot
 459          * @param $ip string
 460          * @param $size int
 461          * @param $newId int
 462          * @param $patrol int
 463          * @return RecentChange
 464          */
 465         public static function notifyNew( $timestamp, &$title, $minor, &$user, $comment, $bot,
 466                 $ip='', $size=0, $newId=0, $patrol=0 ) {
 467                 $rc = new RecentChange;
 468                 $rc->mTitle = $title;
 469                 $rc->mPerformer = $user;
 470                 $rc->mAttribs = array(
 471                         'rc_timestamp'      => $timestamp,
 472                         'rc_cur_time'       => $timestamp,
 473                         'rc_namespace'      => $title->getNamespace(),
 474                         'rc_title'          => $title->getDBkey(),
 475                         'rc_type'           => RC_NEW,
 476                         'rc_minor'          => $minor ? 1 : 0,
 477                         'rc_cur_id'         => $title->getArticleID(),
 478                         'rc_user'           => $user->getId(),
 479                         'rc_user_text'      => $user->getName(),
 480                         'rc_comment'        => $comment,
 481                         'rc_this_oldid'     => $newId,
 482                         'rc_last_oldid'     => 0,
 483                         'rc_bot'            => $bot ? 1 : 0,
 484                         'rc_moved_to_ns'    => 0,
 485                         'rc_moved_to_title' => '',
 486                         'rc_ip'             => self::checkIPAddress( $ip ),
 487                         'rc_patrolled'      => intval($patrol),
 488                         'rc_new'            => 1, # obsolete
 489                         'rc_old_len'        => 0,
 490                         'rc_new_len'        => $size,
 491                         'rc_deleted'        => 0,
 492                         'rc_logid'          => 0,
 493                         'rc_log_type'       => null,
 494                         'rc_log_action'     => '',
 495                         'rc_params'         => ''
 496                 );
 497
 498                 $rc->mExtra =  array(
 499                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 500                         'lastTimestamp' => 0,
 501                         'oldSize' => 0,
 502                         'newSize' => $size
 503                 );
 504                 $rc->save();
 505                 return $rc;
 506         }
 507
 508         /**
 509          * @param $timestamp
 510          * @param $title
 511          * @param $user
 512          * @param $actionComment
 513          * @param $ip string
 514          * @param $type
 515          * @param $action
 516          * @param $target
 517          * @param $logComment
 518          * @param $params
 519          * @param $newId int
 520          * @param $actionCommentIRC string
 521          * @return bool
 522          */
 523         public static function notifyLog( $timestamp, &$title, &$user, $actionComment, $ip, $type,
 524                 $action, $target, $logComment, $params, $newId=0, $actionCommentIRC='' )
 525         {
 526                 global $wgLogRestrictions;
 527                 # Don't add private logs to RC!
 528                 if( isset($wgLogRestrictions[$type]) && $wgLogRestrictions[$type] != '*' ) {
 529                         return false;
 530                 }
 531                 $rc = self::newLogEntry( $timestamp, $title, $user, $actionComment, $ip, $type, $action,
 532                         $target, $logComment, $params, $newId, $actionCommentIRC );
 533                 $rc->save();
 534                 return true;
 535         }
 536
 537         /**
 538          * @param $timestamp
 539          * @param $title Title
 540          * @param $user User
 541          * @param $actionComment
 542          * @param $ip string
 543          * @param $type
 544          * @param $action
 545          * @param $target Title
 546          * @param $logComment
 547          * @param $params
 548          * @param $newId int
 549          * @param $actionCommentIRC string
 550          * @return RecentChange
 551          */
 552         public static function newLogEntry( $timestamp, &$title, &$user, $actionComment, $ip,
 553                 $type, $action, $target, $logComment, $params, $newId=0, $actionCommentIRC='' ) {
 554                 global $wgRequest;
 555
 556                 $rc = new RecentChange;
 557                 $rc->mTitle = $target;
 558                 $rc->mPerformer = $user;
 559                 $rc->mAttribs = array(
 560                         'rc_timestamp'  => $timestamp,
 561                         'rc_cur_time'   => $timestamp,
 562                         'rc_namespace'  => $target->getNamespace(),
 563                         'rc_title'      => $target->getDBkey(),
 564                         'rc_type'       => RC_LOG,
 565                         'rc_minor'      => 0,
 566                         'rc_cur_id'     => $target->getArticleID(),
 567                         'rc_user'       => $user->getId(),
 568                         'rc_user_text'  => $user->getName(),
 569                         'rc_comment'    => $logComment,
 570                         'rc_this_oldid' => 0,
 571                         'rc_last_oldid' => 0,
 572                         'rc_bot'        => $user->isAllowed( 'bot' ) ? $wgRequest->getBool( 'bot', true ) : 0,
 573                         'rc_moved_to_ns' => 0,
 574                         'rc_moved_to_title' => '',
 575                         'rc_ip'         => self::checkIPAddress( $ip ),
 576                         'rc_patrolled'  => 1,
 577                         'rc_new'        => 0, # obsolete
 578                         'rc_old_len'    => null,
 579                         'rc_new_len'    => null,
 580                         'rc_deleted'    => 0,
 581                         'rc_logid'      => $newId,
 582                         'rc_log_type'   => $type,
 583                         'rc_log_action' => $action,
 584                         'rc_params'     => $params
 585                 );
 586
 587                 $rc->mExtra =  array(
 588                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 589                         'lastTimestamp' => 0,
 590                         'actionComment' => $actionComment, // the comment appended to the action, passed from LogPage
 591                         'actionCommentIRC' => $actionCommentIRC
 592                 );
 593                 return $rc;
 594         }
 595
 596         /**
 597          * Initialises the members of this object from a mysql row object
 598          *
 599          * @param $row
 600          */
 601         public function loadFromRow( $row ) {
 602                 $this->mAttribs = get_object_vars( $row );
 603                 $this->mAttribs['rc_timestamp'] = wfTimestamp(TS_MW, $this->mAttribs['rc_timestamp']);
 604                 $this->mAttribs['rc_deleted'] = $row->rc_deleted; // MUST be set
 605         }
 606
 607         /**
 608          * Makes a pseudo-RC entry from a cur row
 609          *
 610          * @param $row
 611          */
 612         public function loadFromCurRow( $row ) {
 613                 $this->mAttribs = array(
 614                         'rc_timestamp' => wfTimestamp(TS_MW, $row->rev_timestamp),
 615                         'rc_cur_time' => $row->rev_timestamp,
 616                         'rc_user' => $row->rev_user,
 617                         'rc_user_text' => $row->rev_user_text,
 618                         'rc_namespace' => $row->page_namespace,
 619                         'rc_title' => $row->page_title,
 620                         'rc_comment' => $row->rev_comment,
 621                         'rc_minor' => $row->rev_minor_edit ? 1 : 0,
 622                         'rc_type' => $row->page_is_new ? RC_NEW : RC_EDIT,
 623                         'rc_cur_id' => $row->page_id,
 624                         'rc_this_oldid' => $row->rev_id,
 625                         'rc_last_oldid' => isset($row->rc_last_oldid) ? $row->rc_last_oldid : 0,
 626                         'rc_bot'        => 0,
 627                         'rc_moved_to_ns'        => 0,
 628                         'rc_moved_to_title'     => '',
 629                         'rc_ip' => '',
 630                         'rc_id' => $row->rc_id,
 631                         'rc_patrolled' => $row->rc_patrolled,
 632                         'rc_new' => $row->page_is_new, # obsolete
 633                         'rc_old_len' => $row->rc_old_len,
 634                         'rc_new_len' => $row->rc_new_len,
 635                         'rc_params' => isset($row->rc_params) ? $row->rc_params : '',
 636                         'rc_log_type' => isset($row->rc_log_type) ? $row->rc_log_type : null,
 637                         'rc_log_action' => isset($row->rc_log_action) ? $row->rc_log_action : null,
 638                         'rc_log_id' => isset($row->rc_log_id) ? $row->rc_log_id: 0,
 639                         'rc_deleted' => $row->rc_deleted // MUST be set
 640                 );
 641         }
 642
 643         /**
 644          * Get an attribute value
 645          *
 646          * @param $name String Attribute name
 647          * @return mixed
 648          */
 649         public function getAttribute( $name ) {
 650                 return isset( $this->mAttribs[$name] ) ? $this->mAttribs[$name] : null;
 651         }
 652
 653         /**
 654          * @return array
 655          */
 656         public function getAttributes() {
 657                 return $this->mAttribs;
 658         }
 659
 660         /**
 661          * Gets the end part of the diff URL associated with this object
 662          * Blank if no diff link should be displayed
 663          * @param $forceCur
 664          * @return string
 665          */
 666         public function diffLinkTrail( $forceCur ) {
 667                 if( $this->mAttribs['rc_type'] == RC_EDIT ) {
 668                         $trail = "curid=" . (int)($this->mAttribs['rc_cur_id']) .
 669                                 "&oldid=" . (int)($this->mAttribs['rc_last_oldid']);
 670                         if( $forceCur ) {
 671                                 $trail .= '&diff=0' ;
 672                         } else {
 673                                 $trail .= '&diff=' . (int)($this->mAttribs['rc_this_oldid']);
 674                         }
 675                 } else {
 676                         $trail = '';
 677                 }
 678                 return $trail;
 679         }
 680
 681         /**
 682          * @return string
 683          */
 684         public function getIRCLine() {
 685                 global $wgUseRCPatrol, $wgUseNPPatrol, $wgRC2UDPInterwikiPrefix, $wgLocalInterwiki,
 686                         $wgCanonicalServer, $wgScript;
 687
 688                 if( $this->mAttribs['rc_type'] == RC_LOG ) {
 689                         // Don't use SpecialPage::getTitleFor, backwards compatibility with
 690                         // IRC API which expects "Log".
 691                         $titleObj = Title::newFromText( 'Log/' . $this->mAttribs['rc_log_type'], NS_SPECIAL );
 692                 } else {
 693                         $titleObj =& $this->getTitle();
 694                 }
 695                 $title = $titleObj->getPrefixedText();
 696                 $title = self::cleanupForIRC( $title );
 697
 698                 if( $this->mAttribs['rc_type'] == RC_LOG ) {
 699                         $url = '';
 700                 } else {
 701                         $url = $wgCanonicalServer . $wgScript;
 702                         if( $this->mAttribs['rc_type'] == RC_NEW ) {
 703                                 $query = '?oldid=' . $this->mAttribs['rc_this_oldid'];
 704                         } else {
 705                                 $query = '?diff=' . $this->mAttribs['rc_this_oldid'] . '&oldid=' . $this->mAttribs['rc_last_oldid'];
 706                         }
 707                         if ( $wgUseRCPatrol || ( $this->mAttribs['rc_type'] == RC_NEW && $wgUseNPPatrol ) ) {
 708                                 $query .= '&rcid=' . $this->mAttribs['rc_id'];
 709                         }
 710                         // HACK: We need this hook for WMF's secure server setup
 711                         wfRunHooks( 'IRCLineURL', array( &$url, &$query ) );
 712                         $url .= $query;
 713                 }
 714
 715                 if( $this->mAttribs['rc_old_len'] !== null && $this->mAttribs['rc_new_len'] !== null ) {
 716                         $szdiff = $this->mAttribs['rc_new_len'] - $this->mAttribs['rc_old_len'];
 717                         if($szdiff < -500) {
 718                                 $szdiff = "\002$szdiff\002";
 719                         } elseif($szdiff >= 0) {
 720                                 $szdiff = '+' . $szdiff ;
 721                         }
 722                         // @todo i18n with parentheses in content language?
 723                         $szdiff = '(' . $szdiff . ')' ;
 724                 } else {
 725                         $szdiff = '';
 726                 }
 727
 728                 $user = self::cleanupForIRC( $this->mAttribs['rc_user_text'] );
 729
 730                 if ( $this->mAttribs['rc_type'] == RC_LOG ) {
 731                         $targetText = $this->getTitle()->getPrefixedText();
 732                         $comment = self::cleanupForIRC( str_replace( "[[$targetText]]", "[[\00302$targetText\00310]]", $this->mExtra['actionCommentIRC'] ) );
 733                         $flag = $this->mAttribs['rc_log_action'];
 734                 } else {
 735                         $comment = self::cleanupForIRC( $this->mAttribs['rc_comment'] );
 736                         $flag = '';
 737                         if ( !$this->mAttribs['rc_patrolled'] && ( $wgUseRCPatrol || $this->mAttribs['rc_type'] == RC_NEW && $wgUseNPPatrol ) ) {
 738                                 $flag .= '!';
 739                         }
 740                         $flag .= ( $this->mAttribs['rc_type'] == RC_NEW ? "N" : "" ) . ( $this->mAttribs['rc_minor'] ? "M" : "" ) . ( $this->mAttribs['rc_bot'] ? "B" : "" );
 741                 }
 742
 743                 if ( $wgRC2UDPInterwikiPrefix === true && $wgLocalInterwiki !== false ) {
 744                         $prefix = $wgLocalInterwiki;
 745                 } elseif ( $wgRC2UDPInterwikiPrefix ) {
 746                         $prefix = $wgRC2UDPInterwikiPrefix;
 747                 } else {
 748                         $prefix = false;
 749                 }
 750                 if ( $prefix !== false ) {
 751                         $titleString = "\00314[[\00303$prefix:\00307$title\00314]]";
 752                 } else {
 753                         $titleString = "\00314[[\00307$title\00314]]";
 754                 }
 755
 756                 # see http://www.irssi.org/documentation/formats for some colour codes. prefix is \003,
 757                 # no colour (\003) switches back to the term default
 758                 $fullString = "$titleString\0034 $flag\00310 " .
 759                                           "\00302$url\003 \0035*\003 \00303$user\003 \0035*\003 $szdiff \00310$comment\003\n";
 760
 761                 return $fullString;
 762         }
 763
 764         /**
 765          * Returns the change size (HTML).
 766          * The lengths can be given optionally.
 767          * @param $old int
 768          * @param $new int
 769          * @return string
 770          */
 771         public function getCharacterDifference( $old = 0, $new = 0 ) {
 772                 if( $old === 0 ) {
 773                         $old = $this->mAttribs['rc_old_len'];
 774                 }
 775                 if( $new === 0 ) {
 776                         $new = $this->mAttribs['rc_new_len'];
 777                 }
 778                 if( $old === null || $new === null ) {
 779                         return '';
 780                 }
 781                 return ChangesList::showCharacterDifference( $old, $new );
 782         }
 783
 784         private static function checkIPAddress( $ip ) {
 785                 global $wgRequest;
 786                 if ( $ip ) {
 787                         if ( !IP::isIPAddress( $ip ) ) {
 788                                 throw new MWException( "Attempt to write \"" . $ip . "\" as an IP address into recent changes" );
 789                         }
 790                 } else {
 791                         $ip = $wgRequest->getIP();
 792                         if( !$ip )
 793                                 $ip = '';
 794                 }
 795                 return $ip;
 796         }
 797 }