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