includes/RecentChange.php

   1 <?php
   2
   3 /**
   4  * Utility class for creating new RC entries
   5  * mAttribs:
   6  *      rc_id           id of the row in the recentchanges table
   7  *      rc_timestamp    time the entry was made
   8  *      rc_cur_time     timestamp on the cur row
   9  *      rc_namespace    namespace #
  10  *      rc_title        non-prefixed db key
  11  *      rc_type         is new entry, used to determine whether updating is necessary
  12  *      rc_minor        is minor
  13  *      rc_cur_id       page_id of associated page entry
  14  *      rc_user         user id who made the entry
  15  *      rc_user_text    user name who made the entry
  16  *      rc_comment      edit summary
  17  *      rc_this_oldid   rev_id associated with this entry (or zero)
  18  *      rc_last_oldid   rev_id associated with the entry before this one (or zero)
  19  *      rc_bot          is bot, hidden
  20  *      rc_ip           IP address of the user in dotted quad notation
  21  *      rc_new          obsolete, use rc_type==RC_NEW
  22  *      rc_patrolled    boolean whether or not someone has marked this edit as patrolled
  23  *      rc_old_len      integer byte length of the text before the edit
  24  *      rc_new_len      the same after the edit
  25   *     rc_deleted              partial deletion
  26  *      rc_logid                the log_id value for this log entry (or zero)
  27  *  rc_log_type         the log type (or null)
  28  *      rc_log_action   the log action (or null)
  29  *  rc_params           log params
  30  *
  31  * mExtra:
  32  *      prefixedDBkey   prefixed db key, used by external app via msg queue
  33  *      lastTimestamp   timestamp of previous entry, used in WHERE clause during update
  34  *      lang            the interwiki prefix, automatically set in save()
  35  *  oldSize         text size before the change
  36  *  newSize         text size after the change
  37  *
  38  * temporary:           not stored in the database
  39  *      notificationtimestamp
  40  *      numberofWatchingusers
  41  *
  42  * @todo document functions and variables
  43  */
  44 class RecentChange
  45 {
  46         var $mAttribs = array(), $mExtra = array();
  47         var $mTitle = false, $mMovedToTitle = false;
  48         var $numberofWatchingusers = 0 ; # Dummy to prevent error message in SpecialRecentchangeslinked
  49
  50         # Factory methods
  51
  52         public static function newFromRow( $row )
  53         {
  54                 $rc = new RecentChange;
  55                 $rc->loadFromRow( $row );
  56                 return $rc;
  57         }
  58
  59         public static function newFromCurRow( $row )
  60         {
  61                 $rc = new RecentChange;
  62                 $rc->loadFromCurRow( $row );
  63                 $rc->notificationtimestamp = false;
  64                 $rc->numberofWatchingusers = false;
  65                 return $rc;
  66         }
  67
  68         /**
  69          * Obtain the recent change with a given rc_id value
  70          *
  71          * @param $rcid rc_id value to retrieve
  72          * @return RecentChange
  73          */
  74         public static function newFromId( $rcid ) {
  75                 $dbr = wfGetDB( DB_SLAVE );
  76                 $res = $dbr->select( 'recentchanges', '*', array( 'rc_id' => $rcid ), __METHOD__ );
  77                 if( $res && $dbr->numRows( $res ) > 0 ) {
  78                         $row = $dbr->fetchObject( $res );
  79                         $dbr->freeResult( $res );
  80                         return self::newFromRow( $row );
  81                 } else {
  82                         return NULL;
  83                 }
  84         }
  85
  86         /**
  87          * Find the first recent change matching some specific conditions
  88          *
  89          * @param array $conds Array of conditions
  90          * @param mixed $fname Override the method name in profiling/logs
  91          * @return RecentChange
  92          */
  93         public static function newFromConds( $conds, $fname = false ) {
  94                 if( $fname === false )
  95                         $fname = __METHOD__;
  96                 $dbr = wfGetDB( DB_SLAVE );
  97                 $res = $dbr->select(
  98                         'recentchanges',
  99                         '*',
 100                         $conds,
 101                         $fname
 102                 );
 103                 if( $res instanceof ResultWrapper && $res->numRows() > 0 ) {
 104                         $row = $res->fetchObject();
 105                         $res->free();
 106                         return self::newFromRow( $row );
 107                 }
 108                 return null;
 109         }
 110
 111         # Accessors
 112
 113         function setAttribs( $attribs )
 114         {
 115                 $this->mAttribs = $attribs;
 116         }
 117
 118         function setExtra( $extra )
 119         {
 120                 $this->mExtra = $extra;
 121         }
 122
 123         function &getTitle()
 124         {
 125                 if ( $this->mTitle === false ) {
 126                         $this->mTitle = Title::makeTitle( $this->mAttribs['rc_namespace'], $this->mAttribs['rc_title'] );
 127                 }
 128                 return $this->mTitle;
 129         }
 130
 131         function getMovedToTitle()
 132         {
 133                 if ( $this->mMovedToTitle === false ) {
 134                         $this->mMovedToTitle = Title::makeTitle( $this->mAttribs['rc_moved_to_ns'],
 135                                 $this->mAttribs['rc_moved_to_title'] );
 136                 }
 137                 return $this->mMovedToTitle;
 138         }
 139
 140         # Writes the data in this object to the database
 141         function save()
 142         {
 143                 global $wgLocalInterwiki, $wgPutIPinRC, $wgRC2UDPAddress, $wgRC2UDPOmitBots;
 144                 $fname = 'RecentChange::save';
 145
 146                 $dbw = wfGetDB( DB_MASTER );
 147                 if ( !is_array($this->mExtra) ) {
 148                         $this->mExtra = array();
 149                 }
 150                 $this->mExtra['lang'] = $wgLocalInterwiki;
 151
 152                 if ( !$wgPutIPinRC ) {
 153                         $this->mAttribs['rc_ip'] = '';
 154                 }
 155
 156                 # If our database is strict about IP addresses, use NULL instead of an empty string
 157                 if ( $dbw->strictIPs() and $this->mAttribs['rc_ip'] == '' ) {
 158                         unset( $this->mAttribs['rc_ip'] );
 159                 }
 160
 161                 # Fixup database timestamps
 162                 $this->mAttribs['rc_timestamp'] = $dbw->timestamp($this->mAttribs['rc_timestamp']);
 163                 $this->mAttribs['rc_cur_time'] = $dbw->timestamp($this->mAttribs['rc_cur_time']);
 164                 $this->mAttribs['rc_id'] = $dbw->nextSequenceValue( 'rc_rc_id_seq' );
 165
 166                 ## If we are using foreign keys, an entry of 0 for the page_id will fail, so use NULL
 167                 if ( $dbw->cascadingDeletes() and $this->mAttribs['rc_cur_id']==0 ) {
 168                         unset ( $this->mAttribs['rc_cur_id'] );
 169                 }
 170
 171                 # Insert new row
 172                 $dbw->insert( 'recentchanges', $this->mAttribs, $fname );
 173
 174                 # Set the ID
 175                 $this->mAttribs['rc_id'] = $dbw->insertId();
 176
 177                 # Notify external application via UDP
 178                 if ( $wgRC2UDPAddress && ( !$this->mAttribs['rc_bot'] || !$wgRC2UDPOmitBots ) ) {
 179                         self::sendToUDP( $this->getIRCLine() );
 180                 }
 181
 182                 # E-mail notifications
 183                 global $wgUseEnotif, $wgShowUpdatedMarker, $wgUser;
 184                 if( $wgUseEnotif || $wgShowUpdatedMarker ) {
 185                         // Users
 186                         if( $this->mAttribs['rc_user'] ) {
 187                                 $editor = ($wgUser->getId() == $this->mAttribs['rc_user']) ?
 188                                         $wgUser : User::newFromID( $this->mAttribs['rc_user'] );
 189                         // Anons
 190                         } else {
 191                                 $editor = ($wgUser->getName() == $this->mAttribs['rc_user_text']) ?
 192                                         $wgUser : User::newFromName( $this->mAttribs['rc_user_text'], false );
 193                         }
 194                         # FIXME: this would be better as an extension hook
 195                         $enotif = new EmailNotification();
 196                         $title = Title::makeTitle( $this->mAttribs['rc_namespace'], $this->mAttribs['rc_title'] );
 197                         $enotif->notifyOnPageChange( $editor, $title,
 198                                 $this->mAttribs['rc_timestamp'],
 199                                 $this->mAttribs['rc_comment'],
 200                                 $this->mAttribs['rc_minor'],
 201                                 $this->mAttribs['rc_last_oldid'] );
 202                 }
 203
 204                 # Notify extensions
 205                 wfRunHooks( 'RecentChange_save', array( &$this ) );
 206         }
 207
 208         /**
 209          * Send some text to UDP
 210          * @param string $line
 211          */
 212         static function sendToUDP( $line ) {
 213                 global $wgRC2UDPAddress, $wgRC2UDPPort, $wgRC2UDPPrefix;
 214                 # Notify external application via UDP
 215                 if( $wgRC2UDPAddress ) {
 216                         $conn = socket_create( AF_INET, SOCK_DGRAM, SOL_UDP );
 217                         if( $conn ) {
 218                                 $line = $wgRC2UDPPrefix . $line;
 219                                 socket_sendto( $conn, $line, strlen($line), 0, $wgRC2UDPAddress, $wgRC2UDPPort );
 220                                 socket_close( $conn );
 221                         }
 222                 }
 223         }
 224
 225         /**
 226          * Mark a given change as patrolled
 227          *
 228          * @param mixed $change RecentChange or corresponding rc_id
 229          * @param bool $auto for automatic patrol
 230          * @return See doMarkPatrolled(), or null if $change is not an existing rc_id
 231          */
 232         public static function markPatrolled( $change, $auto = false ) {
 233                 $change = $change instanceof RecentChange
 234                         ? $change
 235                         : RecentChange::newFromId($change);
 236                 if( !$change instanceof RecentChange ) {
 237                         return null;
 238                 }
 239                 return $change->doMarkPatrolled( $auto );
 240         }
 241
 242         /**
 243          * Mark this RecentChange as patrolled
 244          *
 245          * NOTE: Can also return 'rcpatroldisabled', 'hookaborted' and 'markedaspatrollederror-noautopatrol' as errors
 246          * @param bool $auto for automatic patrol
 247          * @return array of permissions errors, see Title::getUserPermissionsErrors()
 248          */
 249         public function doMarkPatrolled( $auto = false ) {
 250                 global $wgUser, $wgUseRCPatrol, $wgUseNPPatrol;
 251                 $errors = array();
 252                 // If recentchanges patrol is disabled, only new pages
 253                 // can be patrolled
 254                 if ( !$wgUseRCPatrol
 255                         && ( !$wgUseNPPatrol || $this->getAttribute( 'rc_type' ) != RC_NEW ) )
 256                 {
 257                         $errors[] = array('rcpatroldisabled');
 258                 }
 259
 260                 // Automatic patrol needs "autopatrol", ordinary patrol needs "patrol"
 261                 $right = $auto ? 'autopatrol' : 'patrol';
 262                 $errors = array_merge( $errors, $this->getTitle()->getUserPermissionsErrors( $right, $wgUser ) );
 263                 if( !wfRunHooks('MarkPatrolled', array($this->getAttribute('rc_id'), &$wgUser, false)) )
 264                         $errors[] = array('hookaborted');
 265
 266                 // Users without the 'autopatrol' right can't patrol their
 267                 // own revisions
 268                 if( $wgUser->getName() == $this->getAttribute('rc_user_text') && !$wgUser->isAllowed('autopatrol') )
 269                         $errors[] = array('markedaspatrollederror-noautopatrol');
 270
 271                 if( $errors ) {
 272                         return $errors;
 273                 }
 274
 275                 // If the change was patrolled already, do nothing
 276                 if( $this->getAttribute('rc_patrolled') )
 277                         return array();
 278
 279                 // Actually set the 'patrolled' flag in RC
 280                 $this->reallyMarkPatrolled();
 281
 282                 // Log this patrol event
 283                 PatrolLog::record( $this, $auto );
 284                 wfRunHooks( 'MarkPatrolledComplete', array($this->getAttribute('rc_id'), &$wgUser, false) );
 285                 return array();
 286         }
 287
 288         /**
 289          * Mark this RecentChange patrolled, without error checking
 290          * @return int Number of affected rows
 291          */
 292         public function reallyMarkPatrolled() {
 293                 $dbw = wfGetDB( DB_MASTER );
 294                 $dbw->update(
 295                         'recentchanges',
 296                         array(
 297                                 'rc_patrolled' => 1
 298                         ),
 299                         array(
 300                                 'rc_id' => $this->getAttribute('rc_id')
 301                         ),
 302                         __METHOD__
 303                 );
 304                 return $dbw->affectedRows();
 305         }
 306
 307         # Makes an entry in the database corresponding to an edit
 308         public static function notifyEdit( $timestamp, &$title, $minor, &$user, $comment,
 309                 $oldId, $lastTimestamp, $bot, $ip = '', $oldSize = 0, $newSize = 0, $newId = 0)
 310         {
 311                 if ( !$ip ) {
 312                         $ip = wfGetIP();
 313                         if ( !$ip ) {
 314                                 $ip = '';
 315                         }
 316                 }
 317
 318                 $rc = new RecentChange;
 319                 $rc->mAttribs = array(
 320                         'rc_timestamp'  => $timestamp,
 321                         'rc_cur_time'   => $timestamp,
 322                         'rc_namespace'  => $title->getNamespace(),
 323                         'rc_title'      => $title->getDBkey(),
 324                         'rc_type'       => RC_EDIT,
 325                         'rc_minor'      => $minor ? 1 : 0,
 326                         'rc_cur_id'     => $title->getArticleID(),
 327                         'rc_user'       => $user->getId(),
 328                         'rc_user_text'  => $user->getName(),
 329                         'rc_comment'    => $comment,
 330                         'rc_this_oldid' => $newId,
 331                         'rc_last_oldid' => $oldId,
 332                         'rc_bot'        => $bot ? 1 : 0,
 333                         'rc_moved_to_ns'        => 0,
 334                         'rc_moved_to_title'     => '',
 335                         'rc_ip'         => $ip,
 336                         'rc_patrolled'  => 0,
 337                         'rc_new'        => 0,  # obsolete
 338                         'rc_old_len'    => $oldSize,
 339                         'rc_new_len'    => $newSize,
 340                         'rc_deleted'    => 0,
 341                         'rc_logid'              => 0,
 342                         'rc_log_type'   => null,
 343                         'rc_log_action' => '',
 344                         'rc_params'             => ''
 345                 );
 346
 347                 $rc->mExtra =  array(
 348                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 349                         'lastTimestamp' => $lastTimestamp,
 350                         'oldSize'       => $oldSize,
 351                         'newSize'       => $newSize,
 352                 );
 353                 $rc->save();
 354                 return $rc;
 355         }
 356
 357         /**
 358          * Makes an entry in the database corresponding to page creation
 359          * Note: the title object must be loaded with the new id using resetArticleID()
 360          * @todo Document parameters and return
 361          */
 362         public static function notifyNew( $timestamp, &$title, $minor, &$user, $comment, $bot,
 363           $ip='', $size = 0, $newId = 0 )
 364         {
 365                 if ( !$ip ) {
 366                         $ip = wfGetIP();
 367                         if ( !$ip ) {
 368                                 $ip = '';
 369                         }
 370                 }
 371
 372                 $rc = new RecentChange;
 373                 $rc->mAttribs = array(
 374                         'rc_timestamp'      => $timestamp,
 375                         'rc_cur_time'       => $timestamp,
 376                         'rc_namespace'      => $title->getNamespace(),
 377                         'rc_title'          => $title->getDBkey(),
 378                         'rc_type'           => RC_NEW,
 379                         'rc_minor'          => $minor ? 1 : 0,
 380                         'rc_cur_id'         => $title->getArticleID(),
 381                         'rc_user'           => $user->getId(),
 382                         'rc_user_text'      => $user->getName(),
 383                         'rc_comment'        => $comment,
 384                         'rc_this_oldid'     => $newId,
 385                         'rc_last_oldid'     => 0,
 386                         'rc_bot'            => $bot ? 1 : 0,
 387                         'rc_moved_to_ns'    => 0,
 388                         'rc_moved_to_title' => '',
 389                         'rc_ip'             => $ip,
 390                         'rc_patrolled'      => 0,
 391                         'rc_new'                => 1, # obsolete
 392                         'rc_old_len'        => 0,
 393                         'rc_new_len'        => $size,
 394                         'rc_deleted'            => 0,
 395                         'rc_logid'                      => 0,
 396                         'rc_log_type'           => null,
 397                         'rc_log_action'         => '',
 398                         'rc_params'                     => ''
 399                 );
 400
 401                 $rc->mExtra =  array(
 402                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 403                         'lastTimestamp' => 0,
 404                         'oldSize' => 0,
 405                         'newSize' => $size
 406                 );
 407                 $rc->save();
 408                 return $rc;
 409         }
 410
 411         # Makes an entry in the database corresponding to a rename
 412         public static function notifyMove( $timestamp, &$oldTitle, &$newTitle, &$user, $comment, $ip='', $overRedir = false )
 413         {
 414                 global $wgRequest;
 415
 416                 if ( !$ip ) {
 417                         $ip = wfGetIP();
 418                         if ( !$ip ) {
 419                                 $ip = '';
 420                         }
 421                 }
 422
 423                 $rc = new RecentChange;
 424                 $rc->mAttribs = array(
 425                         'rc_timestamp'  => $timestamp,
 426                         'rc_cur_time'   => $timestamp,
 427                         'rc_namespace'  => $oldTitle->getNamespace(),
 428                         'rc_title'      => $oldTitle->getDBkey(),
 429                         'rc_type'       => $overRedir ? RC_MOVE_OVER_REDIRECT : RC_MOVE,
 430                         'rc_minor'      => 0,
 431                         'rc_cur_id'     => $oldTitle->getArticleID(),
 432                         'rc_user'       => $user->getId(),
 433                         'rc_user_text'  => $user->getName(),
 434                         'rc_comment'    => $comment,
 435                         'rc_this_oldid' => 0,
 436                         'rc_last_oldid' => 0,
 437                         'rc_bot'        => $user->isAllowed( 'bot' ) ? $wgRequest->getBool( 'bot' , true ) : 0,
 438                         'rc_moved_to_ns'        => $newTitle->getNamespace(),
 439                         'rc_moved_to_title'     => $newTitle->getDBkey(),
 440                         'rc_ip'         => $ip,
 441                         'rc_new'        => 0, # obsolete
 442                         'rc_patrolled'  => 1,
 443                         'rc_old_len'    => NULL,
 444                         'rc_new_len'    => NULL,
 445                         'rc_deleted'    => 0,
 446                         'rc_logid'              => 0, # notifyMove not used anymore
 447                         'rc_log_type'   => null,
 448                         'rc_log_action' => '',
 449                         'rc_params'             => ''
 450                 );
 451
 452                 $rc->mExtra = array(
 453                         'prefixedDBkey' => $oldTitle->getPrefixedDBkey(),
 454                         'lastTimestamp' => 0,
 455                         'prefixedMoveTo'        => $newTitle->getPrefixedDBkey()
 456                 );
 457                 $rc->save();
 458         }
 459
 460         public static function notifyMoveToNew( $timestamp, &$oldTitle, &$newTitle, &$user, $comment, $ip='' ) {
 461                 RecentChange::notifyMove( $timestamp, $oldTitle, $newTitle, $user, $comment, $ip, false );
 462         }
 463
 464         public static function notifyMoveOverRedirect( $timestamp, &$oldTitle, &$newTitle, &$user, $comment, $ip='' ) {
 465                 RecentChange::notifyMove( $timestamp, $oldTitle, $newTitle, $user, $comment, $ip, true );
 466         }
 467
 468         public static function notifyLog( $timestamp, &$title, &$user, $actionComment, $ip='',
 469            $type, $action, $target, $logComment, $params, $newId=0 )
 470         {
 471                 global $wgRequest;
 472
 473                 if ( !$ip ) {
 474                         $ip = wfGetIP();
 475                         if ( !$ip ) {
 476                                 $ip = '';
 477                         }
 478                 }
 479
 480                 $rc = new RecentChange;
 481                 $rc->mAttribs = array(
 482                         'rc_timestamp'  => $timestamp,
 483                         'rc_cur_time'   => $timestamp,
 484                         'rc_namespace'  => $target->getNamespace(),
 485                         'rc_title'      => $target->getDBkey(),
 486                         'rc_type'       => RC_LOG,
 487                         'rc_minor'      => 0,
 488                         'rc_cur_id'     => $target->getArticleID(),
 489                         'rc_user'       => $user->getId(),
 490                         'rc_user_text'  => $user->getName(),
 491                         'rc_comment'    => $logComment,
 492                         'rc_this_oldid' => 0,
 493                         'rc_last_oldid' => 0,
 494                         'rc_bot'        => $user->isAllowed( 'bot' ) ? $wgRequest->getBool( 'bot', true ) : 0,
 495                         'rc_moved_to_ns'        => 0,
 496                         'rc_moved_to_title'     => '',
 497                         'rc_ip' => $ip,
 498                         'rc_patrolled' => 1,
 499                         'rc_new'        => 0, # obsolete
 500                         'rc_old_len'    => NULL,
 501                         'rc_new_len'    => NULL,
 502                         'rc_deleted'    => 0,
 503                         'rc_logid'              => $newId,
 504                         'rc_log_type'   => $type,
 505                         'rc_log_action' => $action,
 506                         'rc_params'             => $params
 507                 );
 508                 $rc->mExtra =  array(
 509                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 510                         'lastTimestamp' => 0,
 511                         'actionComment' => $actionComment, // the comment appended to the action, passed from LogPage
 512                 );
 513                 $rc->save();
 514         }
 515
 516         # Initialises the members of this object from a mysql row object
 517         function loadFromRow( $row )
 518         {
 519                 $this->mAttribs = get_object_vars( $row );
 520                 $this->mAttribs["rc_timestamp"] = wfTimestamp(TS_MW, $this->mAttribs["rc_timestamp"]);
 521                 $this->mExtra = array();
 522         }
 523
 524         # Makes a pseudo-RC entry from a cur row
 525         function loadFromCurRow( $row )
 526         {
 527                 $this->mAttribs = array(
 528                         'rc_timestamp' => wfTimestamp(TS_MW, $row->rev_timestamp),
 529                         'rc_cur_time' => $row->rev_timestamp,
 530                         'rc_user' => $row->rev_user,
 531                         'rc_user_text' => $row->rev_user_text,
 532                         'rc_namespace' => $row->page_namespace,
 533                         'rc_title' => $row->page_title,
 534                         'rc_comment' => $row->rev_comment,
 535                         'rc_minor' => $row->rev_minor_edit ? 1 : 0,
 536                         'rc_type' => $row->page_is_new ? RC_NEW : RC_EDIT,
 537                         'rc_cur_id' => $row->page_id,
 538                         'rc_this_oldid' => $row->rev_id,
 539                         'rc_last_oldid' => isset($row->rc_last_oldid) ? $row->rc_last_oldid : 0,
 540                         'rc_bot'        => 0,
 541                         'rc_moved_to_ns'        => 0,
 542                         'rc_moved_to_title'     => '',
 543                         'rc_ip' => '',
 544                         'rc_id' => $row->rc_id,
 545                         'rc_patrolled' => $row->rc_patrolled,
 546                         'rc_new' => $row->page_is_new, # obsolete
 547                         'rc_old_len' => $row->rc_old_len,
 548                         'rc_new_len' => $row->rc_new_len,
 549                         'rc_params' => isset($row->rc_params) ? $row->rc_params : '',
 550                         'rc_log_type' => isset($row->rc_log_type) ? $row->rc_log_type : null,
 551                         'rc_log_action' => isset($row->rc_log_action) ? $row->rc_log_action : null,
 552                         'rc_log_id' => isset($row->rc_log_id) ? $row->rc_log_id: 0,
 553                         // this one REALLY should be set...
 554                         'rc_deleted' => isset($row->rc_deleted) ? $row->rc_deleted: 0,
 555                 );
 556
 557                 $this->mExtra = array();
 558         }
 559
 560         /**
 561          * Get an attribute value
 562          *
 563          * @param $name Attribute name
 564          * @return mixed
 565          */
 566         public function getAttribute( $name ) {
 567                 return isset( $this->mAttribs[$name] ) ? $this->mAttribs[$name] : NULL;
 568         }
 569
 570         /**
 571          * Gets the end part of the diff URL associated with this object
 572          * Blank if no diff link should be displayed
 573          */
 574         function diffLinkTrail( $forceCur )
 575         {
 576                 if ( $this->mAttribs['rc_type'] == RC_EDIT ) {
 577                         $trail = "curid=" . (int)($this->mAttribs['rc_cur_id']) .
 578                                 "&oldid=" . (int)($this->mAttribs['rc_last_oldid']);
 579                         if ( $forceCur ) {
 580                                 $trail .= '&diff=0' ;
 581                         } else {
 582                                 $trail .= '&diff=' . (int)($this->mAttribs['rc_this_oldid']);
 583                         }
 584                 } else {
 585                         $trail = '';
 586                 }
 587                 return $trail;
 588         }
 589
 590         function cleanupForIRC( $text ) {
 591                 return str_replace(array("\n", "\r"), array("", ""), $text);
 592         }
 593
 594         function getIRCLine() {
 595                 global $wgUseRCPatrol;
 596
 597                 // FIXME: Would be good to replace these 2 extract() calls with something more explicit
 598                 // e.g. list ($rc_type, $rc_id) = array_values ($this->mAttribs); [or something like that]
 599                 extract($this->mAttribs);
 600                 extract($this->mExtra);
 601
 602                 if ( $rc_type == RC_LOG ) {
 603                         $titleObj = Title::newFromText( "Log/$rc_log_type", NS_SPECIAL );
 604                 } else {
 605                         $titleObj =& $this->getTitle();
 606                 }
 607                 $title = $titleObj->getPrefixedText();
 608                 $title = $this->cleanupForIRC( $title );
 609
 610                 // FIXME: *HACK* these should be getFullURL(), hacked for SSL madness --brion 2005-12-26
 611                 if ( $rc_type == RC_LOG ) {
 612                         $url = '';
 613                 } elseif ( $rc_new && $wgUseRCPatrol ) {
 614                         $url = $titleObj->getInternalURL("rcid=$rc_id");
 615                 } else if ( $rc_new ) {
 616                         $url = $titleObj->getInternalURL();
 617                 } else if ( $wgUseRCPatrol ) {
 618                         $url = $titleObj->getInternalURL("diff=$rc_this_oldid&oldid=$rc_last_oldid&rcid=$rc_id");
 619                 } else {
 620                         $url = $titleObj->getInternalURL("diff=$rc_this_oldid&oldid=$rc_last_oldid");
 621                 }
 622
 623                 if ( isset( $oldSize ) && isset( $newSize ) ) {
 624                         $szdiff = $newSize - $oldSize;
 625                         if ($szdiff < -500) {
 626                                 $szdiff = "\002$szdiff\002";
 627                         } elseif ($szdiff >= 0) {
 628                                 $szdiff = '+' . $szdiff ;
 629                         }
 630                         $szdiff = '(' . $szdiff . ')' ;
 631                 } else {
 632                         $szdiff = '';
 633                 }
 634
 635                 $user = $this->cleanupForIRC( $rc_user_text );
 636
 637                 if ( $rc_type == RC_LOG ) {
 638                         $logTargetText = $this->getTitle()->getPrefixedText();
 639                         $comment = $this->cleanupForIRC( str_replace($logTargetText,"\00302$logTargetText\00310",$actionComment) );
 640                         $flag = $rc_log_action;
 641                 } else {
 642                         $comment = $this->cleanupForIRC( $rc_comment );
 643                         $flag = ($rc_new ? "N" : "") . ($rc_minor ? "M" : "") . ($rc_bot ? "B" : "");
 644                 }
 645                 # see http://www.irssi.org/documentation/formats for some colour codes. prefix is \003,
 646                 # no colour (\003) switches back to the term default
 647                 $fullString = "\00314[[\00307$title\00314]]\0034 $flag\00310 " .
 648                               "\00302$url\003 \0035*\003 \00303$user\003 \0035*\003 $szdiff \00310$comment\003\n";
 649                 return $fullString;
 650         }
 651
 652         /**
 653          * Returns the change size (HTML).
 654          * The lengths can be given optionally.
 655          */
 656         function getCharacterDifference( $old = 0, $new = 0 ) {
 657                 global $wgRCChangedSizeThreshold, $wgLang;
 658
 659                 if( $old === 0 ) {
 660                         $old = $this->mAttribs['rc_old_len'];
 661                 }
 662                 if( $new === 0 ) {
 663                         $new = $this->mAttribs['rc_new_len'];
 664                 }
 665
 666                 if( $old === NULL || $new === NULL ) {
 667                         return '';
 668                 }
 669
 670                 $szdiff = $new - $old;
 671                 $formatedSize = wfMsgExt( 'rc-change-size', array( 'parsemag', 'escape'),
 672                         $wgLang->formatNum($szdiff) );
 673
 674                 if( $szdiff < $wgRCChangedSizeThreshold ) {
 675                         return '<strong class=\'mw-plusminus-neg\'>(' . $formatedSize . ')</strong>';
 676                 } elseif( $szdiff === 0 ) {
 677                         return '<span class=\'mw-plusminus-null\'>(' . $formatedSize . ')</span>';
 678                 } elseif( $szdiff > 0 ) {
 679                         return '<span class=\'mw-plusminus-pos\'>(+' . $formatedSize . ')</span>';
 680                 } else {
 681                         return '<span class=\'mw-plusminus-neg\'>(' . $formatedSize . ')</span>';
 682                 }
 683         }
 684 }