includes/logging/LogFormatter.php

   1 <?php
   2 /**
   3  * Contains classes for formatting log entries
   4  *
   5  * @file
   6  * @author Niklas Laxström
   7  * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
   8  * @since 1.19
   9  */
  10
  11 /**
  12  * Implements the default log formatting.
  13  * Can be overridden by subclassing and setting
  14  * $wgLogActionsHandlers['type/subtype'] = 'class'; or
  15  * $wgLogActionsHandlers['type/*'] = 'class';
  16  * @since 1.19
  17  */
  18 class LogFormatter {
  19         // Audience options for viewing usernames, comments, and actions
  20         const FOR_PUBLIC = 1;
  21         const FOR_THIS_USER = 2;
  22
  23         // Static->
  24
  25         /**
  26          * Constructs a new formatter suitable for given entry.
  27          * @param $entry LogEntry
  28          * @return LogFormatter
  29          */
  30         public static function newFromEntry( LogEntry $entry ) {
  31                 global $wgLogActionsHandlers;
  32                 $fulltype = $entry->getFullType();
  33                 $wildcard = $entry->getType() . '/*';
  34                 $handler = '';
  35
  36                 if ( isset( $wgLogActionsHandlers[$fulltype] ) ) {
  37                         $handler = $wgLogActionsHandlers[$fulltype];
  38                 } elseif ( isset( $wgLogActionsHandlers[$wildcard] ) ) {
  39                         $handler = $wgLogActionsHandlers[$wildcard];
  40                 }
  41
  42                 if ( $handler !== '' && is_string( $handler ) && class_exists( $handler ) ) {
  43                         return new $handler( $entry );
  44                 }
  45
  46                 return new LegacyLogFormatter( $entry );
  47         }
  48
  49         /**
  50          * Handy shortcut for constructing a formatter directly from
  51          * database row.
  52          * @param $row
  53          * @see DatabaseLogEntry::getSelectQueryData
  54          * @return LogFormatter
  55          */
  56         public static function newFromRow( $row ) {
  57                 return self::newFromEntry( DatabaseLogEntry::newFromRow( $row ) );
  58         }
  59
  60         // Nonstatic->
  61
  62         /// @var LogEntry
  63         protected $entry;
  64
  65         /// Integer constant for handling log_deleted
  66         protected $audience = self::FOR_PUBLIC;
  67
  68         /// Whether to output user tool links
  69         protected $linkFlood = false;
  70
  71         /**
  72          * Set to true if we are constructing a message text that is going to
  73          * be included in page history or send to IRC feed. Links are replaced
  74          * with plaintext or with [[pagename]] kind of syntax, that is parsed
  75          * by page histories and IRC feeds.
  76          * @var boolean
  77          */
  78         protected $plaintext = false;
  79
  80         protected $irctext = false;
  81
  82         protected function __construct( LogEntry $entry ) {
  83                 $this->entry = $entry;
  84                 $this->context = RequestContext::getMain();
  85         }
  86
  87         /**
  88          * Replace the default context
  89          * @param $context IContextSource
  90          */
  91         public function setContext( IContextSource $context ) {
  92                 $this->context = $context;
  93         }
  94
  95         /**
  96          * Set the visibility restrictions for displaying content.
  97          * If set to public, and an item is deleted, then it will be replaced
  98          * with a placeholder even if the context user is allowed to view it.
  99          * @param $audience integer self::FOR_THIS_USER or self::FOR_PUBLIC
 100          */
 101         public function setAudience( $audience ) {
 102                 $this->audience = ( $audience == self::FOR_THIS_USER )
 103                         ? self::FOR_THIS_USER
 104                         : self::FOR_PUBLIC;
 105         }
 106
 107         /**
 108          * Check if a log item can be displayed
 109          * @param $field integer LogPage::DELETED_* constant
 110          * @return bool
 111          */
 112         protected function canView( $field ) {
 113                 if ( $this->audience == self::FOR_THIS_USER ) {
 114                         return LogEventsList::userCanBitfield(
 115                                 $this->entry->getDeleted(), $field, $this->context->getUser() );
 116                 } else {
 117                         return !$this->entry->isDeleted( $field );
 118                 }
 119         }
 120
 121         /**
 122          * If set to true, will produce user tool links after
 123          * the user name. This should be replaced with generic
 124          * CSS/JS solution.
 125          * @param $value boolean
 126          */
 127         public function setShowUserToolLinks( $value ) {
 128                 $this->linkFlood = $value;
 129         }
 130
 131         /**
 132          * Ugly hack to produce plaintext version of the message.
 133          * Usually you also want to set extraneous request context
 134          * to avoid formatting for any particular user.
 135          * @see getActionText()
 136          * @return string text
 137          */
 138         public function getPlainActionText() {
 139                 $this->plaintext = true;
 140                 $text = $this->getActionText();
 141                 $this->plaintext = false;
 142                 return $text;
 143         }
 144
 145         /**
 146          * Even uglier hack to maintain backwards compatibilty with IRC bots
 147          * (bug 34508).
 148          * @see getActionText()
 149          * @return string text
 150          */
 151         public function getIRCActionComment() {
 152                 $actionComment = $this->getIRCActionText();
 153                 $comment = $this->entry->getComment();
 154
 155                 if ( $comment != '' ) {
 156                         if ( $actionComment == '' ) {
 157                                 $actionComment = $comment;
 158                         } else {
 159                                 $actionComment .= wfMsgForContent( 'colon-separator' ) . $comment;
 160                         }
 161                 }
 162
 163                 return $actionComment;
 164         }
 165
 166         /**
 167          * Even uglier hack to maintain backwards compatibilty with IRC bots
 168          * (bug 34508).
 169          * @see getActionText()
 170          * @return string text
 171          */
 172         public function getIRCActionText() {
 173                 $this->plaintext = true;
 174                 $this->irctext = true;
 175                 $text = $this->getActionText();
 176
 177                 $entry = $this->entry;
 178                 $parameters = $entry->getParameters();
 179                 // @see LogPage::actionText()
 180                 $msgOpts = array( 'parsemag', 'escape', 'replaceafter', 'content' );
 181                 // Text of title the action is aimed at.
 182                 $target = $entry->getTarget()->getPrefixedText() ;
 183                 $text = null;
 184                 switch( $entry->getType() ) {
 185                         case 'move':
 186                                 switch( $entry->getSubtype() ) {
 187                                         case 'move':
 188                                                 $movesource =  $parameters['4::target'];
 189                                                 $text = wfMsgExt( '1movedto2', $msgOpts, $target, $movesource );
 190                                                 break;
 191                                         case 'move_redir':
 192                                                 $movesource =  $parameters['4::target'];
 193                                                 $text = wfMsgExt( '1movedto2_redir', $msgOpts, $target, $movesource );
 194                                                 break;
 195                                         case 'move-noredirect':
 196                                                 break;
 197                                         case 'move_redir-noredirect':
 198                                                 break;
 199                                 }
 200                                 break;
 201
 202                         case 'delete':
 203                                 switch( $entry->getSubtype() ) {
 204                                         case 'delete':
 205                                                 $text = wfMsgExt( 'deletedarticle', $msgOpts, $target );
 206                                                 break;
 207                                         case 'restore':
 208                                                 $text = wfMsgExt( 'undeletedarticle', $msgOpts, $target );
 209                                                 break;
 210                                         //case 'revision': // Revision deletion
 211                                         //case 'event': // Log deletion
 212                                                 // see https://svn.wikimedia.org/viewvc/mediawiki/trunk/phase3/includes/LogPage.php?&pathrev=97044&r1=97043&r2=97044
 213                                         //default:
 214                                 }
 215                                 break;
 216
 217                         case 'patrol':
 218                                 // https://svn.wikimedia.org/viewvc/mediawiki/trunk/phase3/includes/PatrolLog.php?&pathrev=97495&r1=97494&r2=97495
 219                                 // Create a diff link to the patrolled revision
 220                                 if ( $entry->getSubtype() === 'patrol' ) {
 221                                         $diffLink = htmlspecialchars(
 222                                                 wfMsgForContent( 'patrol-log-diff', $parameters['4::curid'] ) );
 223                                         $text = wfMsgForContent( 'patrol-log-line', $diffLink, "[[$target]]", "" );
 224                                 } else {
 225                                         // broken??
 226                                 }
 227                                 break;
 228
 229                         case 'protect':
 230                                 switch( $entry->getSubtype() ) {
 231                                 case 'protect':
 232                                         $text = wfMsgExt( 'protectedarticle', $msgOpts, $target . ' ' . $parameters[0] );
 233                                                 break;
 234                                 case 'unprotect':
 235                                         $text = wfMsgExt( 'unprotectedarticle', $msgOpts, $target );
 236                                                 break;
 237                                 case 'modify':
 238                                         $text = wfMsgExt( 'modifiedarticleprotection', $msgOpts, $target . ' ' . $parameters[0] );
 239                                                 break;
 240                                 }
 241                                 break;
 242
 243                         case 'newusers':
 244                                 switch( $entry->getSubtype() ) {
 245                                         case 'newusers':
 246                                         case 'create':
 247                                                 $text = wfMsgExt( 'newuserlog-create-entry', $msgOpts /* no params */ );
 248                                                 break;
 249                                         case 'create2':
 250                                                 $text = wfMsgExt( 'newuserlog-create2-entry', $msgOpts, $target );
 251                                                 break;
 252                                         case 'autocreate':
 253                                                 $text = wfMsgExt( 'newuserlog-autocreate-entry', $msgOpts /* no params */ );
 254                                                 break;
 255                                 }
 256                                 break;
 257
 258                         case 'upload':
 259                                 switch( $entry->getSubtype() ) {
 260                                         case 'upload':
 261                                                 $text = wfMsgExt( 'uploadedimage', $msgOpts, $target );
 262                                                 break;
 263                                         case 'overwrite':
 264                                                 $text = wfMsgExt( 'overwroteimage', $msgOpts, $target );
 265                                                 break;
 266                                 }
 267                                 break;
 268
 269
 270                         // case 'suppress' --private log -- aaron  (sign your messages so we know who to blame in a few years :-D)
 271                         // default:
 272                 }
 273                 if( is_null( $text ) ) {
 274                         $text = $this->getPlainActionText();
 275                 }
 276
 277                 $this->plaintext = false;
 278                 $this->irctext = false;
 279                 return $text;
 280         }
 281
 282         /**
 283          * Gets the log action, including username.
 284          * @return string HTML
 285          */
 286         public function getActionText() {
 287                 if ( $this->canView( LogPage::DELETED_ACTION ) ) {
 288                         $element = $this->getActionMessage();
 289                         if ( $element instanceof Message ) {
 290                                 $element = $this->plaintext ? $element->text() : $element->escaped();
 291                         }
 292                         if ( $this->entry->isDeleted( LogPage::DELETED_ACTION ) ) {
 293                                 $element = $this->styleRestricedElement( $element );
 294                         }
 295                 } else {
 296                         $performer = $this->getPerformerElement() . $this->msg( 'word-separator' )->text();
 297                         $element = $performer . $this->getRestrictedElement( 'rev-deleted-event' );
 298                 }
 299
 300                 return $element;
 301         }
 302
 303         /**
 304          * Returns a sentence describing the log action. Usually
 305          * a Message object is returned, but old style log types
 306          * and entries might return pre-escaped html string.
 307          * @return Message|string pre-escaped html
 308          */
 309         protected function getActionMessage() {
 310                 $message = $this->msg( $this->getMessageKey() );
 311                 $message->params( $this->getMessageParameters() );
 312                 return $message;
 313         }
 314
 315         /**
 316          * Returns a key to be used for formatting the action sentence.
 317          * Default is logentry-TYPE-SUBTYPE for modern logs. Legacy log
 318          * types will use custom keys, and subclasses can also alter the
 319          * key depending on the entry itself.
 320          * @return string message key
 321          */
 322         protected function getMessageKey() {
 323                 $type = $this->entry->getType();
 324                 $subtype = $this->entry->getSubtype();
 325
 326                 return "logentry-$type-$subtype";
 327         }
 328
 329         /**
 330          * Extracts the optional extra parameters for use in action messages.
 331          * The array indexes start from number 3.
 332          * @return array
 333          */
 334         protected function extractParameters() {
 335                 $entry = $this->entry;
 336                 $params = array();
 337
 338                 if ( $entry->isLegacy() ) {
 339                         foreach ( $entry->getParameters() as $index => $value ) {
 340                                 $params[$index + 3] = $value;
 341                         }
 342                 }
 343
 344                 // Filter out parameters which are not in format #:foo
 345                 foreach ( $entry->getParameters() as $key => $value ) {
 346                         if ( strpos( $key, ':' ) === false ) continue;
 347                         list( $index, $type, $name ) = explode( ':', $key, 3 );
 348                         $params[$index - 1] = $value;
 349                 }
 350
 351                 /* Message class doesn't like non consecutive numbering.
 352                  * Fill in missing indexes with empty strings to avoid
 353                  * incorrect renumbering.
 354                  */
 355                 if ( count( $params ) ) {
 356                         $max = max( array_keys( $params ) );
 357                         for ( $i = 4; $i < $max; $i++ ) {
 358                                 if ( !isset( $params[$i] ) ) {
 359                                         $params[$i] = '';
 360                                 }
 361                         }
 362                 }
 363                 return $params;
 364         }
 365
 366         /**
 367          * Formats parameters intented for action message from
 368          * array of all parameters. There are three hardcoded
 369          * parameters (array is zero-indexed, this list not):
 370          *  - 1: user name with premade link
 371          *  - 2: usable for gender magic function
 372          *  - 3: target page with premade link
 373          * @return array
 374          */
 375         protected function getMessageParameters() {
 376                 if ( isset( $this->parsedParameters ) ) {
 377                         return $this->parsedParameters;
 378                 }
 379
 380                 $entry = $this->entry;
 381                 $params = $this->extractParameters();
 382                 $params[0] = Message::rawParam( $this->getPerformerElement() );
 383                 $params[1] = $entry->getPerformer()->getName();
 384                 $params[2] = Message::rawParam( $this->makePageLink( $entry->getTarget() ) );
 385
 386                 // Bad things happens if the numbers are not in correct order
 387                 ksort( $params );
 388                 return $this->parsedParameters = $params;
 389         }
 390
 391         /**
 392          * Helper to make a link to the page, taking the plaintext
 393          * value in consideration.
 394          * @param $title Title the page
 395          * @param $parameters array query parameters
 396          * @return String
 397          */
 398         protected function makePageLink( Title $title = null, $parameters = array() ) {
 399                 if ( !$this->plaintext ) {
 400                         $link = Linker::link( $title, null, array(), $parameters );
 401                 } else {
 402                         if ( !$title instanceof Title ) {
 403                                 throw new MWException( "Expected title, got null" );
 404                         }
 405                         $link = '[[' . $title->getPrefixedText() . ']]';
 406                 }
 407                 return $link;
 408         }
 409
 410         /**
 411          * Provides the name of the user who performed the log action.
 412          * Used as part of log action message or standalone, depending
 413          * which parts of the log entry has been hidden.
 414          * @return String
 415          */
 416         public function getPerformerElement() {
 417                 if ( $this->canView( LogPage::DELETED_USER ) ) {
 418                         $performer = $this->entry->getPerformer();
 419                         $element = $this->makeUserLink( $performer );
 420                         if ( $this->entry->isDeleted( LogPage::DELETED_USER ) ) {
 421                                 $element = $this->styleRestricedElement( $element );
 422                         }
 423                 } else {
 424                         $element = $this->getRestrictedElement( 'rev-deleted-user' );
 425                 }
 426
 427                 return $element;
 428         }
 429
 430         /**
 431          * Gets the luser provided comment
 432          * @return string HTML
 433          */
 434         public function getComment() {
 435                 if ( $this->canView( LogPage::DELETED_COMMENT ) ) {
 436                         $comment = Linker::commentBlock( $this->entry->getComment() );
 437                         // No hard coded spaces thanx
 438                         $element = ltrim( $comment );
 439                         if ( $this->entry->isDeleted( LogPage::DELETED_COMMENT ) ) {
 440                                 $element = $this->styleRestricedElement( $element );
 441                         }
 442                 } else {
 443                         $element = $this->getRestrictedElement( 'rev-deleted-comment' );
 444                 }
 445
 446                 return $element;
 447         }
 448
 449         /**
 450          * Helper method for displaying restricted element.
 451          * @param $message string
 452          * @return string HTML or wikitext
 453          */
 454         protected function getRestrictedElement( $message ) {
 455                 if ( $this->plaintext ) {
 456                         return $this->msg( $message )->text();
 457                 }
 458
 459                 $content =  $this->msg( $message )->escaped();
 460                 $attribs = array( 'class' => 'history-deleted' );
 461                 return Html::rawElement( 'span', $attribs, $content );
 462         }
 463
 464         /**
 465          * Helper method for styling restricted element.
 466          * @param $content string
 467          * @return string HTML or wikitext
 468          */
 469         protected function styleRestricedElement( $content ) {
 470                 if ( $this->plaintext ) {
 471                         return $content;
 472                 }
 473                 $attribs = array( 'class' => 'history-deleted' );
 474                 return Html::rawElement( 'span', $attribs, $content );
 475         }
 476
 477         /**
 478          * Shortcut for wfMessage which honors local context.
 479          * @todo Would it be better to require replacing the global context instead?
 480          * @param $key string
 481          * @return Message
 482          */
 483         protected function msg( $key ) {
 484                 return wfMessage( $key )
 485                         ->inLanguage( $this->context->getLanguage() )
 486                         ->title( $this->context->getTitle() );
 487         }
 488
 489         protected function makeUserLink( User $user ) {
 490                 if ( $this->plaintext ) {
 491                         $element = $user->getName();
 492                 } else {
 493                         $element = Linker::userLink(
 494                                 $user->getId(),
 495                                 $user->getName()
 496                         );
 497
 498                         if ( $this->linkFlood ) {
 499                                 $element .= Linker::userToolLinks(
 500                                         $user->getId(),
 501                                         $user->getName(),
 502                                         true, // Red if no edits
 503                                         0, // Flags
 504                                         $user->getEditCount()
 505                                 );
 506                         }
 507                 }
 508                 return $element;
 509         }
 510
 511         /**
 512          * @return Array of titles that should be preloaded with LinkBatch.
 513          */
 514         public function getPreloadTitles() {
 515                 return array();
 516         }
 517
 518 }
 519
 520 /**
 521  * This class formats all log entries for log types
 522  * which have not been converted to the new system.
 523  * This is not about old log entries which store
 524  * parameters in a different format - the new
 525  * LogFormatter classes have code to support formatting
 526  * those too.
 527  * @since 1.19
 528  */
 529 class LegacyLogFormatter extends LogFormatter {
 530         protected function getActionMessage() {
 531                 $entry = $this->entry;
 532                 $action = LogPage::actionText(
 533                         $entry->getType(),
 534                         $entry->getSubtype(),
 535                         $entry->getTarget(),
 536                         $this->plaintext ? null : $this->context->getSkin(),
 537                         (array)$entry->getParameters(),
 538                         !$this->plaintext // whether to filter [[]] links
 539                 );
 540
 541                 $performer = $this->getPerformerElement();
 542                 if ( !$this->irctext ) {
 543                         $action = $performer .  $this->msg( 'word-separator' )->text() . $action;
 544                 }
 545
 546                 return $action;
 547         }
 548
 549 }
 550
 551 /**
 552  * This class formats move log entries.
 553  * @since 1.19
 554  */
 555 class MoveLogFormatter extends LogFormatter {
 556         public function getPreloadTitles() {
 557                 $params = $this->extractParameters();
 558                 return array( Title::newFromText( $params[3] ) );
 559         }
 560
 561         protected function getMessageKey() {
 562                 $key = parent::getMessageKey();
 563                 $params = $this->getMessageParameters();
 564                 if ( isset( $params[4] ) && $params[4] === '1' ) {
 565                         $key .= '-noredirect';
 566                 }
 567                 return $key;
 568         }
 569
 570         protected function getMessageParameters() {
 571                 $params = parent::getMessageParameters();
 572                 $oldname = $this->makePageLink( $this->entry->getTarget(), array( 'redirect' => 'no' ) );
 573                 $newname = $this->makePageLink( Title::newFromText( $params[3] ) );
 574                 $params[2] = Message::rawParam( $oldname );
 575                 $params[3] = Message::rawParam( $newname );
 576                 return $params;
 577         }
 578 }
 579
 580 /**
 581  * This class formats delete log entries.
 582  * @since 1.19
 583  */
 584 class DeleteLogFormatter extends LogFormatter {
 585         protected function getMessageKey() {
 586                 $key = parent::getMessageKey();
 587                 if ( in_array( $this->entry->getSubtype(), array( 'event', 'revision' ) ) ) {
 588                         if ( count( $this->getMessageParameters() ) < 5 ) {
 589                                 return "$key-legacy";
 590                         }
 591                 }
 592                 return $key;
 593         }
 594
 595         protected function getMessageParameters() {
 596                 if ( isset( $this->parsedParametersDeleteLog ) ) {
 597                         return $this->parsedParametersDeleteLog;
 598                 }
 599
 600                 $params = parent::getMessageParameters();
 601                 $subtype = $this->entry->getSubtype();
 602                 if ( in_array( $subtype, array( 'event', 'revision' ) ) ) {
 603                         if (
 604                                 ($subtype === 'event' && count( $params ) === 6 ) ||
 605                                 ($subtype === 'revision' && isset( $params[3] ) && $params[3] === 'revision' )
 606                         ) {
 607                                 $paramStart = $subtype === 'revision' ? 4 : 3;
 608
 609                                 $old = $this->parseBitField( $params[$paramStart+1] );
 610                                 $new = $this->parseBitField( $params[$paramStart+2] );
 611                                 list( $hid, $unhid, $extra ) = RevisionDeleter::getChanges( $new, $old );
 612                                 $changes = array();
 613                                 foreach ( $hid as $v ) {
 614                                         $changes[] = $this->msg( "$v-hid" )->plain();
 615                                 }
 616                                 foreach ( $unhid as $v ) {
 617                                         $changes[] = $this->msg( "$v-unhid" )->plain();
 618                                 }
 619                                 foreach ( $extra as $v ) {
 620                                         $changes[] = $this->msg( $v )->plain();
 621                                 }
 622                                 $changeText =  $this->context->getLanguage()->listToText( $changes );
 623
 624
 625                                 $newParams = array_slice( $params, 0, 3 );
 626                                 $newParams[3] = $changeText;
 627                                 $count = count( explode( ',', $params[$paramStart] ) );
 628                                 $newParams[4] = $this->context->getLanguage()->formatNum( $count );
 629                                 return $this->parsedParametersDeleteLog = $newParams;
 630                         } else {
 631                                 return $this->parsedParametersDeleteLog = array_slice( $params, 0, 3 );
 632                         }
 633                 }
 634
 635                 return $this->parsedParametersDeleteLog = $params;
 636         }
 637
 638         protected function parseBitField( $string ) {
 639                 // Input is like ofield=2134 or just the number
 640                 if ( strpos( $string, 'field=' ) === 1 ) {
 641                         list( , $field ) = explode( '=', $string );
 642                         return (int) $field;
 643                 } else {
 644                         return (int) $string;
 645                 }
 646         }
 647 }
 648
 649 /**
 650  * This class formats patrol log entries.
 651  * @since 1.19
 652  */
 653 class PatrolLogFormatter extends LogFormatter {
 654         protected function getMessageKey() {
 655                 $key = parent::getMessageKey();
 656                 $params = $this->getMessageParameters();
 657                 if ( isset( $params[5] ) && $params[5] ) {
 658                         $key .= '-auto';
 659                 }
 660                 return $key;
 661         }
 662
 663         protected function getMessageParameters() {
 664                 $params = parent::getMessageParameters();
 665
 666                 $target = $this->entry->getTarget();
 667                 $oldid = $params[3];
 668                 $revision = $this->context->getLanguage()->formatNum( $oldid, true );
 669
 670                 if ( $this->plaintext ) {
 671                         $revlink = $revision;
 672                 } elseif ( $target->exists() ) {
 673                         $query = array(
 674                                 'oldid' => $oldid,
 675                                 'diff' => 'prev'
 676                         );
 677                         $revlink = Linker::link( $target, htmlspecialchars( $revision ), array(), $query );
 678                 } else {
 679                         $revlink = htmlspecialchars( $revision );
 680                 }
 681
 682                 $params[3] = Message::rawParam( $revlink );
 683                 return $params;
 684         }
 685 }
 686
 687 /**
 688  * This class formats new user log entries.
 689  * @since 1.19
 690  */
 691 class NewUsersLogFormatter extends LogFormatter {
 692         protected function getMessageParameters() {
 693                 $params = parent::getMessageParameters();
 694                 if ( $this->entry->getSubtype() === 'create2' ) {
 695                         if ( isset( $params[3] ) ) {
 696                                 $target = User::newFromId( $params[3] );
 697                         } else {
 698                                 $target = User::newFromName( $this->entry->getTarget()->getText(), false );
 699                         }
 700                         $params[2] = Message::rawParam( $this->makeUserLink( $target ) );
 701                         $params[3] = $target->getName();
 702                 }
 703                 return $params;
 704         }
 705
 706         public function getComment() {
 707                 $timestamp = wfTimestamp( TS_MW, $this->entry->getTimestamp() );
 708                 if ( $timestamp < '20080129000000' ) {
 709                         # Suppress $comment from old entries (before 2008-01-29),
 710                         # not needed and can contain incorrect links
 711                         return '';
 712                 }
 713                 return parent::getComment();
 714         }
 715 }