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