includes/LogEventsList.php

   1 <?php
   2 # Copyright (C) 2004 Brion Vibber <brion@pobox.com>, 2008 Aaron Schulz
   3 # http://www.mediawiki.org/
   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 class LogEventsList {
  21         const NO_ACTION_LINK = 1;
  22
  23         private $skin;
  24         private $out;
  25         public $flags;
  26
  27         function __construct( $skin, $out, $flags = 0 ) {
  28                 $this->skin = $skin;
  29                 $this->out = $out;
  30                 $this->flags = $flags;
  31                 $this->preCacheMessages();
  32         }
  33
  34         /**
  35          * As we use the same small set of messages in various methods and that
  36          * they are called often, we call them once and save them in $this->message
  37          */
  38         private function preCacheMessages() {
  39                 // Precache various messages
  40                 if( !isset( $this->message ) ) {
  41                         $messages = 'revertmerge protect_change unblocklink revertmove undeletelink revdel-restore rev-delundel hist';
  42                         foreach( explode(' ', $messages ) as $msg ) {
  43                                 $this->message[$msg] = wfMsgExt( $msg, array( 'escape') );
  44                         }
  45                 }
  46         }
  47
  48         /**
  49          * Set page title and show header for this log type
  50          * @param string $type
  51          */
  52         public function showHeader( $type ) {
  53                 if( LogPage::isLogType( $type ) ) {
  54                         $this->out->setPageTitle( LogPage::logName( $type ) );
  55                         $this->out->addHtml( LogPage::logHeader( $type ) );
  56                 }
  57         }
  58
  59         /**
  60          * Show options for the log list
  61          * @param string $type,
  62          * @param string $user,
  63          * @param string $page,
  64          * @param string $pattern
  65          * @param int $year
  66          * @parm int $month
  67          */
  68         public function showOptions( $type='', $user='', $page='', $pattern='', $year='', $month='' ) {
  69                 global $wgScript, $wgMiserMode;
  70                 $action = htmlspecialchars( $wgScript );
  71                 $title = SpecialPage::getTitleFor( 'Log' );
  72                 $special = htmlspecialchars( $title->getPrefixedDBkey() );
  73
  74                 $this->out->addHTML( "<form action=\"$action\" method=\"get\"><fieldset>" .
  75                         Xml::element( 'legend', array(), wfMsg( 'log' ) ) .
  76                         Xml::hidden( 'title', $special ) . "\n" .
  77                         $this->getTypeMenu( $type ) . "\n" .
  78                         $this->getUserInput( $user ) . "\n" .
  79                         $this->getTitleInput( $page ) . "\n" .
  80                         ( !$wgMiserMode ? ($this->getTitlePattern( $pattern )."\n") : "" ) .
  81                         "<p>" . $this->getDateMenu( $year, $month ) . "\n" .
  82                         Xml::submitButton( wfMsg( 'allpagessubmit' ) ) . "</p>\n" .
  83                         "</fieldset></form>" );
  84         }
  85
  86         /**
  87          * @return string Formatted HTML
  88          * @param string $queryType
  89          */
  90         private function getTypeMenu( $queryType ) {
  91                 global $wgLogRestrictions, $wgUser;
  92
  93                 $html = "<select name='type'>\n";
  94
  95                 $validTypes = LogPage::validTypes();
  96                 $m = array(); // Temporary array
  97
  98                 // First pass to load the log names
  99                 foreach( $validTypes as $type ) {
 100                         $text = LogPage::logName( $type );
 101                         $m[$text] = $type;
 102                 }
 103
 104                 // Second pass to sort by name
 105                 ksort($m);
 106
 107                 // Third pass generates sorted XHTML content
 108                 foreach( $m as $text => $type ) {
 109                         $selected = ($type == $queryType);
 110                         // Restricted types
 111                         if ( isset($wgLogRestrictions[$type]) ) {
 112                                 if ( $wgUser->isAllowed( $wgLogRestrictions[$type] ) ) {
 113                                         $html .= Xml::option( $text, $type, $selected ) . "\n";
 114                                 }
 115                         } else {
 116                                 $html .= Xml::option( $text, $type, $selected ) . "\n";
 117                         }
 118                 }
 119
 120                 $html .= '</select>';
 121                 return $html;
 122         }
 123
 124         /**
 125          * @return string Formatted HTML
 126          * @param string $user
 127          */
 128         private function getUserInput( $user ) {
 129                 return Xml::inputLabel( wfMsg( 'specialloguserlabel' ), 'user', 'user', 15, $user );
 130         }
 131
 132         /**
 133          * @return string Formatted HTML
 134          * @param string $title
 135          */
 136         private function getTitleInput( $title ) {
 137                 return Xml::inputLabel( wfMsg( 'speciallogtitlelabel' ), 'page', 'page', 20, $title );
 138         }
 139
 140         /**
 141          * @return string Formatted HTML
 142          * @param int $year
 143          * @param int $month
 144          */
 145         private function getDateMenu( $year, $month ) {
 146                 # Offset overrides year/month selection
 147                 if( $month && $month !== -1 ) {
 148                         $encMonth = intval( $month );
 149                 } else {
 150                         $encMonth = '';
 151                 }
 152                 if ( $year ) {
 153                         $encYear = intval( $year );
 154                 } else if( $encMonth ) {
 155                         $thisMonth = intval( gmdate( 'n' ) );
 156                         $thisYear = intval( gmdate( 'Y' ) );
 157                         if( intval($encMonth) > $thisMonth ) {
 158                                 $thisYear--;
 159                         }
 160                         $encYear = $thisYear;
 161                 } else {
 162                         $encYear = '';
 163                 }
 164                 return Xml::label( wfMsg( 'year' ), 'year' ) . ' '.
 165                         Xml::input( 'year', 4, $encYear, array('id' => 'year', 'maxlength' => 4) ) .
 166                         ' '.
 167                         Xml::label( wfMsg( 'month' ), 'month' ) . ' '.
 168                         Xml::monthSelector( $encMonth, -1 );
 169         }
 170
 171         /**
 172          * @return boolean Checkbox
 173          */
 174         private function getTitlePattern( $pattern ) {
 175                 return '<span style="white-space: nowrap">' .
 176                         Xml::checkLabel( wfMsg( 'log-title-wildcard' ), 'pattern', 'pattern', $pattern ) .
 177                         '</span>';
 178         }
 179
 180         public function beginLogEventsList() {
 181                 return "<ul>\n";
 182         }
 183
 184         public function endLogEventsList() {
 185                 return "</ul>\n";
 186         }
 187
 188                 /**
 189          * @param Row $row a single row from the result set
 190          * @return string Formatted HTML list item
 191          * @private
 192          */
 193         public function logLine( $row ) {
 194                 global $wgLang, $wgUser, $wgContLang;
 195
 196                 $title = Title::makeTitle( $row->log_namespace, $row->log_title );
 197                 $time = $wgLang->timeanddate( wfTimestamp(TS_MW, $row->log_timestamp), true );
 198                 // User links
 199                 if( self::isDeleted($row,LogPage::DELETED_USER) ) {
 200                         $userLink = '<span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
 201                 } else {
 202                         $userLink = $this->skin->userLink( $row->log_user, $row->user_name ) .
 203                                 $this->skin->userToolLinks( $row->log_user, $row->user_name, true, 0, $row->user_editcount );
 204                 }
 205                 // Comment
 206                 if( self::isDeleted($row,LogPage::DELETED_COMMENT) ) {
 207                         $comment = '<span class="history-deleted">' . wfMsgHtml('rev-deleted-comment') . '</span>';
 208                 } else {
 209                         $comment = $wgContLang->getDirMark() . $this->skin->commentBlock( $row->log_comment );
 210                 }
 211                 // Extract extra parameters
 212                 $paramArray = LogPage::extractParams( $row->log_params );
 213                 $revert = $del = '';
 214                 // Some user can hide log items and have review links
 215                 if( $wgUser->isAllowed( 'deleterevision' ) ) {
 216                         $del = $this->showhideLinks( $row ) . ' ';
 217                 }
 218                 // Add review links and such...
 219                 if( ($this->flags & self::NO_ACTION_LINK) || ($row->log_deleted & LogPage::DELETED_ACTION) ) {
 220                         // Action text is suppressed...
 221                 } else if( self::typeAction($row,'move','move') && !empty($paramArray[0]) && $wgUser->isAllowed( 'move' ) ) {
 222                         $destTitle = Title::newFromText( $paramArray[0] );
 223                         if( $destTitle ) {
 224                                 $revert = '(' . $this->skin->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
 225                                         $this->message['revertmove'],
 226                                         'wpOldTitle=' . urlencode( $destTitle->getPrefixedDBkey() ) .
 227                                         '&wpNewTitle=' . urlencode( $title->getPrefixedDBkey() ) .
 228                                         '&wpReason=' . urlencode( wfMsgForContent( 'revertmove' ) ) .
 229                                         '&wpMovetalk=0' ) . ')';
 230                         }
 231                 // Show undelete link
 232                 } else if( self::typeAction($row,array('delete','suppress'),'delete') && $wgUser->isAllowed( 'delete' ) ) {
 233                         $revert = '(' . $this->skin->makeKnownLinkObj( SpecialPage::getTitleFor( 'Undelete' ),
 234                                 $this->message['undeletelink'], 'target='. urlencode( $title->getPrefixedDBkey() ) ) . ')';
 235                 // Show unblock link
 236                 } else if( self::typeAction($row,array('block','suppress'),'block') && $wgUser->isAllowed( 'block' ) ) {
 237                         $revert = '(' .  $this->skin->makeKnownLinkObj( SpecialPage::getTitleFor( 'Ipblocklist' ),
 238                                 $this->message['unblocklink'],
 239                                 'action=unblock&ip=' . urlencode( $row->log_title ) ) . ')';
 240                 // Show change protection link
 241                 } else if( self::typeAction($row,'protect',array('modify','protect','unprotect')) ) {
 242                         $revert .= ' (' .  $this->skin->makeKnownLinkObj( $title, $this->message['hist'],
 243                                 'action=history&offset=' . urlencode($row->log_timestamp) ) . ')';
 244                         if( $wgUser->isAllowed('protect') && $row->log_action != 'unprotect' ) {
 245                                 $revert .= ' (' .  $this->skin->makeKnownLinkObj( $title, $this->message['protect_change'],
 246                                         'action=unprotect' ) . ')';
 247                         }
 248                 // Show unmerge link
 249                 } else if ( self::typeAction($row,'merge','merge') ) {
 250                         $merge = SpecialPage::getTitleFor( 'Mergehistory' );
 251                         $revert = '(' .  $this->skin->makeKnownLinkObj( $merge, $this->message['revertmerge'],
 252                                 wfArrayToCGI( array('target' => $paramArray[0], 'dest' => $title->getPrefixedDBkey(),
 253                                         'mergepoint' => $paramArray[1] ) ) ) . ')';
 254                 // If an edit was hidden from a page give a review link to the history
 255                 } else if( self::typeAction($row,array('delete','suppress'),'revision') && $wgUser->isAllowed( 'deleterevision' ) ) {
 256                         if( count($paramArray) == 2 ) {
 257                                 $revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
 258                                 // Different revision types use different URL params...
 259                                 $key = $paramArray[0];
 260                                 // Link to each hidden object ID, $paramArray[1] is the url param
 261                                 $Ids = explode( ',', $paramArray[1] );
 262                                 $revParams = '';
 263                                 foreach( $Ids as $n => $id ) {
 264                                         $revParams .= '&' . urlencode($key) . '[]=' . urlencode($id);
 265                                 }
 266                                 $revert = '(' . $this->skin->makeKnownLinkObj( $revdel, $this->message['revdel-restore'],
 267                                         'target=' . $title->getPrefixedUrl() . $revParams ) . ')';
 268                         }
 269                 // Hidden log items, give review link
 270                 } else if( self::typeAction($row,array('delete','suppress'),'event') && $wgUser->isAllowed( 'deleterevision' ) ) {
 271                         if( count($paramArray) == 1 ) {
 272                                 $revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
 273                                 $Ids = explode( ',', $paramArray[0] );
 274                                 // Link to each hidden object ID, $paramArray[1] is the url param
 275                                 $logParams = '';
 276                                 foreach( $Ids as $n => $id ) {
 277                                         $logParams .= '&logid[]=' . intval($id);
 278                                 }
 279                                 $revert = '(' . $this->skin->makeKnownLinkObj( $revdel, $this->message['revdel-restore'],
 280                                         'target=' . $title->getPrefixedUrl() . $logParams ) . ')';
 281                         }
 282                 // Self-created users
 283                 } else if( self::typeAction($row,'newusers','create2') ) {
 284                         if( isset( $paramArray[0] ) ) {
 285                                 $revert = $this->skin->userToolLinks( $paramArray[0], $title->getDBkey(), true );
 286                         } else {
 287                                 # Fall back to a blue contributions link
 288                                 $revert = $this->skin->userToolLinks( 1, $title->getDBkey() );
 289                         }
 290                         if( $time < '20080129000000' ) {
 291                                 # Suppress $comment from old entries (before 2008-01-29), not needed and can contain incorrect links
 292                                 $comment = '';
 293                         }
 294                 // Do nothing. The implementation is handled by the hook modifiying the passed-by-ref parameters.
 295                 } else {
 296                         wfRunHooks( 'LogLine', array( $row->log_type, $row->log_action, $title, $paramArray,
 297                                 &$comment, &$revert, $row->log_timestamp ) );
 298                 }
 299                 // Event description
 300                 if( self::isDeleted($row,LogPage::DELETED_ACTION) ) {
 301                         $action = '<span class="history-deleted">' . wfMsgHtml('rev-deleted-event') . '</span>';
 302                 } else {
 303                         $action = LogPage::actionText( $row->log_type, $row->log_action, $title, $this->skin, $paramArray, true );
 304                 }
 305
 306                 return "<li>$del$time $userLink $action $comment $revert</li>\n";
 307         }
 308
 309         /**
 310          * @param Row $row
 311          * @return string
 312          */
 313         private function showhideLinks( $row ) {
 314                 $revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
 315                 // If event was hidden from sysops
 316                 if( !self::userCan( $row, LogPage::DELETED_RESTRICTED ) ) {
 317                         $del = $this->message['rev-delundel'];
 318                 } else if( $row->log_type == 'suppress' ) {
 319                         // No one should be hiding from the oversight log
 320                         $del = $this->message['rev-delundel'];
 321                 } else {
 322                         $target = SpecialPage::getTitleFor( 'Log', $row->log_type );
 323                         $del = $this->skin->makeKnownLinkObj( $revdel, $this->message['rev-delundel'],
 324                                 'target=' . $target->getPrefixedUrl() . '&logid='.$row->log_id );
 325                         // Bolden oversighted content
 326                         if( self::isDeleted( $row, LogPage::DELETED_RESTRICTED ) )
 327                                 $del = "<strong>$del</strong>";
 328                 }
 329                 return "<tt>(<small>$del</small>)</tt>";
 330         }
 331
 332         /**
 333          * @param Row $row
 334          * @param mixed $type (string/array)
 335          * @param mixed $action (string/array)
 336          * @return bool
 337          */
 338         public static function typeAction( $row, $type, $action ) {
 339                 $match = is_array($type) ? in_array($row->log_type,$type) : $row->log_type == $type;
 340                 if( $match ) {
 341                         $match = is_array($action) ? in_array($row->log_action,$action) : $row->log_action == $action;
 342                 }
 343                 return $match;
 344         }
 345
 346         /**
 347          * Determine if the current user is allowed to view a particular
 348          * field of this log row, if it's marked as deleted.
 349          * @param Row $row
 350          * @param int $field
 351          * @return bool
 352          */
 353         public static function userCan( $row, $field ) {
 354                 if( ( $row->log_deleted & $field ) == $field ) {
 355                         global $wgUser;
 356                         $permission = ( $row->log_deleted & LogPage::DELETED_RESTRICTED ) == LogPage::DELETED_RESTRICTED
 357                                 ? 'suppressrevision'
 358                                 : 'deleterevision';
 359                         wfDebug( "Checking for $permission due to $field match on $row->log_deleted\n" );
 360                         return $wgUser->isAllowed( $permission );
 361                 } else {
 362                         return true;
 363                 }
 364         }
 365
 366         /**
 367          * @param Row $row
 368          * @param int $field one of DELETED_* bitfield constants
 369          * @return bool
 370          */
 371         public static function isDeleted( $row, $field ) {
 372                 return ($row->log_deleted & $field) == $field;
 373         }
 374
 375         /**
 376          * Quick function to show a short log extract
 377          * @param OutputPage $out
 378          * @param string $type
 379          * @param string $page
 380          * @param string $user
 381          */
 382         public static function showLogExtract( $out, $type='', $page='', $user='', $limit = NULL ) {
 383                 global $wgUser;
 384                 # Insert list of top 50 or so items
 385                 $loglist = new LogEventsList( $wgUser->getSkin(), $out, 0 );
 386                 $pager = new LogPager( $loglist, $type, $user, $page, '' );
 387                 if( $limit ) $pager->mLimit = $limit;
 388                 $logBody = $pager->getBody();
 389                 if( $logBody ) {
 390                         $out->addHTML(
 391                                 $loglist->beginLogEventsList() .
 392                                 $logBody .
 393                                 $loglist->endLogEventsList()
 394                         );
 395                 } else {
 396                         $out->addWikiMsg( 'logempty' );
 397                 }
 398         }
 399
 400          /**
 401          * SQL clause to skip forbidden log types for this user
 402          * @param Database $db
 403          * @returns mixed (string or false)
 404          */
 405         public static function getExcludeClause( $db ) {
 406                 global $wgLogRestrictions, $wgUser;
 407                 // Reset the array, clears extra "where" clauses when $par is used
 408                 $hiddenLogs = array();
 409                 // Don't show private logs to unprivileged users
 410                 foreach( $wgLogRestrictions as $logtype => $right ) {
 411                         if( !$wgUser->isAllowed($right) ) {
 412                                 $safetype = $db->strencode( $logtype );
 413                                 $hiddenLogs[] = $safetype;
 414                         }
 415                 }
 416                 if( count($hiddenLogs) == 1 ) {
 417                         return 'log_type != ' . $db->addQuotes( $hiddenLogs[0] );
 418                 } elseif( !empty( $hiddenLogs ) ) {
 419                         return 'log_type NOT IN (' . $db->makeList($hiddenLogs) . ')';
 420                 }
 421                 return false;
 422         }
 423 }
 424
 425 /**
 426  * @ingroup Pager
 427  */
 428 class LogPager extends ReverseChronologicalPager {
 429         private $type = '', $user = '', $title = '', $pattern = '';
 430         public $mLogEventsList;
 431         /**
 432         * constructor
 433         * @param LogEventsList $loglist,
 434         * @param string $type,
 435         * @param string $user,
 436         * @param string $page,
 437         * @param string $pattern
 438         * @param array $conds
 439         */
 440         function __construct( $list, $type='', $user='', $title='', $pattern='', $conds=array(), $y=false, $m=false ) {
 441                 parent::__construct();
 442                 $this->mConds = $conds;
 443
 444                 $this->mLogEventsList = $list;
 445
 446                 $this->limitType( $type );
 447                 $this->limitUser( $user );
 448                 $this->limitTitle( $title, $pattern );
 449                 $this->getDateCond( $y, $m );
 450         }
 451
 452         function getDefaultQuery() {
 453                 $query = parent::getDefaultQuery();
 454                 $query['type'] = $this->type;
 455                 $query['month'] = $this->mMonth;
 456                 $query['year'] = $this->mYear;
 457                 return $query;
 458         }
 459
 460         /**
 461          * Set the log reader to return only entries of the given type.
 462          * Type restrictions enforced here
 463          * @param string $type A log type ('upload', 'delete', etc)
 464          * @private
 465          */
 466         private function limitType( $type ) {
 467                 global $wgLogRestrictions, $wgUser;
 468                 // Don't even show header for private logs; don't recognize it...
 469                 if( isset($wgLogRestrictions[$type]) && !$wgUser->isAllowed($wgLogRestrictions[$type]) ) {
 470                         $type = '';
 471                 }
 472                 // Don't show private logs to unpriviledged users
 473                 $hideLogs = LogEventsList::getExcludeClause( $this->mDb );
 474                 if( $hideLogs !== false ) {
 475                         $this->mConds[] = $hideLogs;
 476                 }
 477                 if( empty($type) ) {
 478                         return false;
 479                 }
 480                 $this->type = $type;
 481                 $this->mConds['log_type'] = $type;
 482         }
 483
 484         /**
 485          * Set the log reader to return only entries by the given user.
 486          * @param string $name (In)valid user name
 487          * @private
 488          */
 489         function limitUser( $name ) {
 490                 if( $name == '' ) {
 491                         return false;
 492                 }
 493                 $usertitle = Title::makeTitleSafe( NS_USER, $name );
 494                 if( is_null($usertitle) ) {
 495                         return false;
 496                 }
 497                 /* Fetch userid at first, if known, provides awesome query plan afterwards */
 498                 $userid = User::idFromName( $name );
 499                 if( !$userid ) {
 500                         /* It should be nicer to abort query at all,
 501                            but for now it won't pass anywhere behind the optimizer */
 502                         $this->mConds[] = "NULL";
 503                 } else {
 504                         $this->mConds['log_user'] = $userid;
 505                         $this->user = $usertitle->getText();
 506                 }
 507         }
 508
 509         /**
 510          * Set the log reader to return only entries affecting the given page.
 511          * (For the block and rights logs, this is a user page.)
 512          * @param string $page Title name as text
 513          * @private
 514          */
 515         function limitTitle( $page, $pattern ) {
 516                 global $wgMiserMode;
 517
 518                 $title = Title::newFromText( $page );
 519                 if( strlen($page) == 0 || !$title instanceof Title )
 520                         return false;
 521
 522                 $this->title = $title->getPrefixedText();
 523                 $ns = $title->getNamespace();
 524                 # Using the (log_namespace, log_title, log_timestamp) index with a
 525                 # range scan (LIKE) on the first two parts, instead of simple equality,
 526                 # makes it unusable for sorting.  Sorted retrieval using another index
 527                 # would be possible, but then we might have to scan arbitrarily many
 528                 # nodes of that index. Therefore, we need to avoid this if $wgMiserMode
 529                 # is on.
 530                 #
 531                 # This is not a problem with simple title matches, because then we can
 532                 # use the page_time index.  That should have no more than a few hundred
 533                 # log entries for even the busiest pages, so it can be safely scanned
 534                 # in full to satisfy an impossible condition on user or similar.
 535                 if( $pattern && !$wgMiserMode ) {
 536                         # use escapeLike to avoid expensive search patterns like 't%st%'
 537                         $safetitle = $this->mDb->escapeLike( $title->getDBkey() );
 538                         $this->mConds['log_namespace'] = $ns;
 539                         $this->mConds[] = "log_title LIKE '$safetitle%'";
 540                         $this->pattern = $pattern;
 541                 } else {
 542                         $this->mConds['log_namespace'] = $ns;
 543                         $this->mConds['log_title'] = $title->getDBkey();
 544                 }
 545         }
 546
 547         function getQueryInfo() {
 548                 $this->mConds[] = 'user_id = log_user';
 549                 # Don't use the wrong logging index
 550                 if( $this->title || $this->pattern || $this->user ) {
 551                         $index = array( 'USE INDEX' => array( 'logging' => array('page_time','user_time') ) );
 552                 } else if( $this->type ) {
 553                         $index = array( 'USE INDEX' => array( 'logging' => 'type_time' ) );
 554                 } else {
 555                         $index = array( 'USE INDEX' => array( 'logging' => 'times' ) );
 556                 }
 557                 return array(
 558                         'tables' => array( 'logging', 'user' ),
 559                         'fields' => array( 'log_type', 'log_action', 'log_user', 'log_namespace', 'log_title', 'log_params',
 560                                 'log_comment', 'log_id', 'log_deleted', 'log_timestamp', 'user_name', 'user_editcount' ),
 561                         'conds' => $this->mConds,
 562                         'options' => $index
 563                 );
 564         }
 565
 566         function getIndexField() {
 567                 return 'log_timestamp';
 568         }
 569
 570         function getStartBody() {
 571                 wfProfileIn( __METHOD__ );
 572                 # Do a link batch query
 573                 if( $this->getNumRows() > 0 ) {
 574                         $lb = new LinkBatch;
 575                         while( $row = $this->mResult->fetchObject() ) {
 576                                 $lb->add( $row->log_namespace, $row->log_title );
 577                                 $lb->addObj( Title::makeTitleSafe( NS_USER, $row->user_name ) );
 578                                 $lb->addObj( Title::makeTitleSafe( NS_USER_TALK, $row->user_name ) );
 579                         }
 580                         $lb->execute();
 581                         $this->mResult->seek( 0 );
 582                 }
 583                 wfProfileOut( __METHOD__ );
 584                 return '';
 585         }
 586
 587         function formatRow( $row ) {
 588                 return $this->mLogEventsList->logLine( $row );
 589         }
 590
 591         public function getType() {
 592                 return $this->type;
 593         }
 594
 595         public function getUser() {
 596                 return $this->user;
 597         }
 598
 599         public function getPage() {
 600                 return $this->title;
 601         }
 602
 603         public function getPattern() {
 604                 return $this->pattern;
 605         }
 606
 607         public function getYear() {
 608                 return $this->mYear;
 609         }
 610
 611         public function getMonth() {
 612                 return $this->mMonth;
 613         }
 614 }
 615
 616 /**
 617  * @deprecated
 618  * @ingroup SpecialPage
 619  */
 620 class LogReader {
 621         var $pager;
 622         /**
 623          * @param WebRequest $request For internal use use a FauxRequest object to pass arbitrary parameters.
 624          */
 625         function __construct( $request ) {
 626                 global $wgUser, $wgOut;
 627                 # Get parameters
 628                 $type = $request->getVal( 'type' );
 629                 $user = $request->getText( 'user' );
 630                 $title = $request->getText( 'page' );
 631                 $pattern = $request->getBool( 'pattern' );
 632                 $y = $request->getIntOrNull( 'year' );
 633                 $m = $request->getIntOrNull( 'month' );
 634                 # Don't let the user get stuck with a certain date
 635                 $skip = $request->getText( 'offset' ) || $request->getText( 'dir' ) == 'prev';
 636                 if( $skip ) {
 637                         $y = '';
 638                         $m = '';
 639                 }
 640                 # Use new list class to output results
 641                 $loglist = new LogEventsList( $wgUser->getSkin(), $wgOut, 0 );
 642                 $this->pager = new LogPager( $loglist, $type, $user, $title, $pattern, $y, $m );
 643         }
 644
 645         /**
 646         * Is there at least one row?
 647         * @return bool
 648         */
 649         public function hasRows() {
 650                 return isset($this->pager) ? ($this->pager->getNumRows() > 0) : false;
 651         }
 652 }
 653
 654 /**
 655  * @deprecated
 656  * @ingroup SpecialPage
 657  */
 658 class LogViewer {
 659         const NO_ACTION_LINK = 1;
 660         /**
 661          * @var LogReader $reader
 662          */
 663         var $reader;
 664         /**
 665          * @param LogReader &$reader where to get our data from
 666          * @param integer $flags Bitwise combination of flags:
 667          *     LogEventsList::NO_ACTION_LINK   Don't show restore/unblock/block links
 668          */
 669         function __construct( &$reader, $flags = 0 ) {
 670                 global $wgUser;
 671                 $this->reader =& $reader;
 672                 $this->reader->pager->mLogEventsList->flags = $flags;
 673                 # Aliases for shorter code...
 674                 $this->pager =& $this->reader->pager;
 675                 $this->list =& $this->reader->pager->mLogEventsList;
 676         }
 677
 678         /**
 679          * Take over the whole output page in $wgOut with the log display.
 680          */
 681         public function show() {
 682                 # Set title and add header
 683                 $this->list->showHeader( $pager->getType() );
 684                 # Show form options
 685                 $this->list->showOptions( $this->pager->getType(), $this->pager->getUser(), $this->pager->getPage(),
 686                         $this->pager->getPattern(), $this->pager->getYear(), $this->pager->getMonth() );
 687                 # Insert list
 688                 $logBody = $this->pager->getBody();
 689                 if( $logBody ) {
 690                         $wgOut->addHTML(
 691                                 $this->pager->getNavigationBar() .
 692                                 $this->list->beginLogEventsList() .
 693                                 $logBody .
 694                                 $this->list->endLogEventsList() .
 695                                 $this->pager->getNavigationBar()
 696                         );
 697                 } else {
 698                         $wgOut->addWikiMsg( 'logempty' );
 699                 }
 700         }
 701
 702         /**
 703          * Output just the list of entries given by the linked LogReader,
 704          * with extraneous UI elements. Use for displaying log fragments in
 705          * another page (eg at Special:Undelete)
 706          * @param OutputPage $out where to send output
 707          */
 708         public function showList( &$out ) {
 709                 $logBody = $this->pager->getBody();
 710                 if( $logBody ) {
 711                         $out->addHTML(
 712                                 $this->list->beginLogEventsList() .
 713                                 $logBody .
 714                                 $this->list->endLogEventsList()
 715                         );
 716                 } else {
 717                         $out->addWikiMsg( 'logempty' );
 718                 }
 719         }
 720 }