Allow gender based localisation for 'lastmodifiedatby'
[lhc/web/wiklou.git] / includes / LogEventsList.php
index dff59b6..ac6c9fc 100644 (file)
 
 class LogEventsList {
        const NO_ACTION_LINK = 1;
-       
+
        private $skin;
+       private $out;
        public $flags;
 
-       function __construct( &$skin, $flags = 0 ) {
-               $this->skin =& $skin;
+       public function __construct( $skin, $out, $flags = 0 ) {
+               $this->skin = $skin;
+               $this->out = $out;
                $this->flags = $flags;
                $this->preCacheMessages();
        }
@@ -36,124 +38,175 @@ class LogEventsList {
        private function preCacheMessages() {
                // Precache various messages
                if( !isset( $this->message ) ) {
-                       $messages = 'revertmerge protect_change unblocklink revertmove undeletelink revdel-restore rev-delundel';
-                       foreach( explode(' ', $messages ) as $msg ) {
-                               $this->message[$msg] = wfMsgExt( $msg, array( 'escape') );
+                       $messages = array( 'revertmerge', 'protect_change', 'unblocklink', 'change-blocklink',
+                               'revertmove', 'undeletelink', 'revdel-restore', 'rev-delundel', 'hist', 'diff',
+                               'pipe-separator' );
+                       foreach( $messages as $msg ) {
+                               $this->message[$msg] = wfMsgExt( $msg, array( 'escapenoentities' ) );
                        }
                }
        }
-       
+
        /**
         * Set page title and show header for this log type
-        * @param OutputPage $out where to send output
-        * @param strin $type
+        * @param $type String
         */
-       public function showHeader( $out, $type ) {
+       public function showHeader( $type ) {
                if( LogPage::isLogType( $type ) ) {
-                       $out->setPageTitle( LogPage::logName( $type ) );
-                       $out->addHtml( LogPage::logHeader( $type ) );
+                       $this->out->setPageTitle( LogPage::logName( $type ) );
+                       $this->out->addHTML( LogPage::logHeader( $type ) );
                }
        }
 
        /**
         * Show options for the log list
-        * @param OutputPage $out where to send output
-        * @param string $type,
-        * @param string $user,
-        * @param string $page,
-        * @param string $pattern
+        * @param $type String
+        * @param $user String
+        * @param $page String
+        * @param $pattern String
+        * @param $year Integer: year
+        * @param $month Integer: month
+        * @param $filter: array
+        * @param $tagFilter: array?
         */
-       public function showOptions( $out, $type, $user, $page, $pattern ) {
+       public function showOptions( $type = '', $user = '', $page = '', $pattern = '', $year = '', 
+               $month = '', $filter = null, $tagFilter='' ) 
+       {
                global $wgScript, $wgMiserMode;
                $action = htmlspecialchars( $wgScript );
                $title = SpecialPage::getTitleFor( 'Log' );
                $special = htmlspecialchars( $title->getPrefixedDBkey() );
-               $out->addHTML( "<form action=\"$action\" method=\"get\"><fieldset>" .
+
+               $tagSelector = ChangeTags::buildTagFilterSelector( $tagFilter );
+
+               $this->out->addHTML( "<form action=\"$action\" method=\"get\"><fieldset>" .
                        Xml::element( 'legend', array(), wfMsg( 'log' ) ) .
                        Xml::hidden( 'title', $special ) . "\n" .
                        $this->getTypeMenu( $type ) . "\n" .
                        $this->getUserInput( $user ) . "\n" .
                        $this->getTitleInput( $page ) . "\n" .
                        ( !$wgMiserMode ? ($this->getTitlePattern( $pattern )."\n") : "" ) .
-                       Xml::submitButton( wfMsg( 'allpagessubmit' ) ) . "\n" .
-                       "</fieldset></form>" );
+                       "<p>" . Xml::dateMenu( $year, $month ) . "\n" .
+                       ( $tagSelector ? Xml::tags( 'p', null, implode( '&nbsp;', $tagSelector ) ) :'' ). "\n" .
+                       ( $filter ? "</p><p>".$this->getFilterLinks( $type, $filter )."\n" : "" ) . "\n" .
+                       Xml::submitButton( wfMsg( 'allpagessubmit' ) ) . "</p>\n" .
+                       "</fieldset></form>"
+               );
+       }
+       
+       private function getFilterLinks( $logType, $filter ) {
+               global $wgTitle, $wgLang;
+               // show/hide links
+               $messages = array( wfMsgHtml( 'show' ), wfMsgHtml( 'hide' ) );
+               // Option value -> message mapping
+               $links = array();
+               $hiddens = ''; // keep track for "go" button
+               foreach( $filter as $type => $val ) {
+                       $hideVal = 1 - intval($val);
+                       $link = $this->skin->makeKnownLinkObj( $wgTitle, $messages[$hideVal],
+                               wfArrayToCGI( array( "hide_{$type}_log" => $hideVal ), $this->getDefaultQuery() )
+                       );
+                       $links[$type] = wfMsgHtml( "log-show-hide-{$type}", $link );
+                       $hiddens .= Xml::hidden( "hide_{$type}_log", $val ) . "\n";
+               }
+               // Build links
+               return '<small>'.$wgLang->pipeList( $links ) . '</small>' . $hiddens;
+       }
+       
+       private function getDefaultQuery() {
+               if ( !isset( $this->mDefaultQuery ) ) {
+                       $this->mDefaultQuery = $_GET;
+                       unset( $this->mDefaultQuery['title'] );
+                       unset( $this->mDefaultQuery['dir'] );
+                       unset( $this->mDefaultQuery['offset'] );
+                       unset( $this->mDefaultQuery['limit'] );
+                       unset( $this->mDefaultQuery['order'] );
+                       unset( $this->mDefaultQuery['month'] );
+                       unset( $this->mDefaultQuery['year'] );
+               }
+               return $this->mDefaultQuery;
        }
 
        /**
-        * @return string Formatted HTML
+        * @param $queryType String
+        * @return String: Formatted HTML
         */
        private function getTypeMenu( $queryType ) {
                global $wgLogRestrictions, $wgUser;
-       
-               $out = "<select name='type'>\n";
+
+               $html = "<select name='type'>\n";
 
                $validTypes = LogPage::validTypes();
-               $m = array(); // Temporary array
+               $typesByName = array(); // Temporary array
 
                // First pass to load the log names
                foreach( $validTypes as $type ) {
                        $text = LogPage::logName( $type );
-                       $m[$text] = $type;
+                       $typesByName[$text] = $type;
                }
 
                // Second pass to sort by name
-               ksort($m);
+               ksort($typesByName);
 
                // Third pass generates sorted XHTML content
-               foreach( $m as $text => $type ) {
+               foreach( $typesByName as $text => $type ) {
                        $selected = ($type == $queryType);
                        // Restricted types
                        if ( isset($wgLogRestrictions[$type]) ) {
                                if ( $wgUser->isAllowed( $wgLogRestrictions[$type] ) ) {
-                                       $out .= Xml::option( $text, $type, $selected ) . "\n";
+                                       $html .= Xml::option( $text, $type, $selected ) . "\n";
                                }
                        } else {
-                               $out .= Xml::option( $text, $type, $selected ) . "\n";
+                               $html .= Xml::option( $text, $type, $selected ) . "\n";
                        }
                }
 
-               $out .= '</select>';
-               return $out;
+               $html .= '</select>';
+               return $html;
        }
 
        /**
-        * @return string Formatted HTML
+        * @param $user String
+        * @return String: Formatted HTML
         */
        private function getUserInput( $user ) {
-               return Xml::inputLabel( wfMsg( 'specialloguserlabel' ), 'user', 'user', 12, $user );
+               return Xml::inputLabel( wfMsg( 'specialloguserlabel' ), 'user', 'mw-log-user', 15, $user );
        }
 
        /**
-        * @return string Formatted HTML
+        * @param $title String
+        * @return String: Formatted HTML
         */
        private function getTitleInput( $title ) {
-               return Xml::inputLabel( wfMsg( 'speciallogtitlelabel' ), 'page', 'page', 20, $title );
+               return Xml::inputLabel( wfMsg( 'speciallogtitlelabel' ), 'page', 'mw-log-page', 20, $title );
        }
 
        /**
         * @return boolean Checkbox
         */
        private function getTitlePattern( $pattern ) {
-               return Xml::checkLabel( wfMsg( 'log-title-wildcard' ), 'pattern', 'pattern', $pattern );
+               return '<span style="white-space: nowrap">' .
+                       Xml::checkLabel( wfMsg( 'log-title-wildcard' ), 'pattern', 'pattern', $pattern ) .
+                       '</span>';
        }
-       
+
        public function beginLogEventsList() {
                return "<ul>\n";
        }
-       
+
        public function endLogEventsList() {
                return "</ul>\n";
        }
-       
-               /**
-        * @param Row $row a single row from the result set
-        * @return string Formatted HTML list item
-        * @private
+
+       /**
+        * @param $row Row: a single row from the result set
+        * @return String: Formatted HTML list item
         */
        public function logLine( $row ) {
                global $wgLang, $wgUser, $wgContLang;
-               
+
                $title = Title::makeTitle( $row->log_namespace, $row->log_title );
+               $classes = array( "mw-logline-{$row->log_type}" );
                $time = $wgLang->timeanddate( wfTimestamp(TS_MW, $row->log_timestamp), true );
                // User links
                if( self::isDeleted($row,LogPage::DELETED_USER) ) {
@@ -172,130 +225,188 @@ class LogEventsList {
                $paramArray = LogPage::extractParams( $row->log_params );
                $revert = $del = '';
                // Some user can hide log items and have review links
-               if( $wgUser->isAllowed( 'deleterevision' ) ) {
-                       $del = $this->showhideLinks( $row ) . ' ';
+               if( !($this->flags & self::NO_ACTION_LINK) && $wgUser->isAllowed( 'deleterevision' ) ) {
+                       $del = $this->getShowHideLinks( $row ) . ' ';
                }
                // Add review links and such...
-               if( !($this->flags & self::NO_ACTION_LINK) && !($row->log_deleted & LogPage::DELETED_ACTION) ) {
-                       if( $row->log_type == 'move' && isset( $paramArray[0] ) && $wgUser->isAllowed( 'move' ) ) {
-                               $destTitle = Title::newFromText( $paramArray[0] );
-                               if( $destTitle ) {
-                                       $revert = '(' . $this->skin->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
-                                               $this->message['revertmove'],
-                                               'wpOldTitle=' . urlencode( $destTitle->getPrefixedDBkey() ) .
-                                               '&wpNewTitle=' . urlencode( $title->getPrefixedDBkey() ) .
-                                               '&wpReason=' . urlencode( wfMsgForContent( 'revertmove' ) ) .
-                                               '&wpMovetalk=0' ) . ')';
-                               }
-                       // Show undelete link
-                       } else if( $row->log_action == 'delete' && $wgUser->isAllowed( 'delete' ) ) {
-                               $revert = '(' . $this->skin->makeKnownLinkObj( SpecialPage::getTitleFor( 'Undelete' ),
-                                       $this->message['undeletelink'], 'target='. urlencode( $title->getPrefixedDBkey() ) ) . ')';
-                       // Show unblock link
-                       } else if( $row->log_action == 'block' && $wgUser->isAllowed( 'block' ) ) {
-                               $revert = '(' .  $this->skin->makeKnownLinkObj( SpecialPage::getTitleFor( 'Ipblocklist' ),
+               if( ($this->flags & self::NO_ACTION_LINK) || ($row->log_deleted & LogPage::DELETED_ACTION) ) {
+                       // Action text is suppressed...
+               } else if( self::typeAction($row,'move','move','move') && !empty($paramArray[0]) ) {
+                       $destTitle = Title::newFromText( $paramArray[0] );
+                       if( $destTitle ) {
+                               $revert = '(' . $this->skin->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
+                                       $this->message['revertmove'],
+                                       'wpOldTitle=' . urlencode( $destTitle->getPrefixedDBkey() ) .
+                                       '&wpNewTitle=' . urlencode( $title->getPrefixedDBkey() ) .
+                                       '&wpReason=' . urlencode( wfMsgForContent( 'revertmove' ) ) .
+                                       '&wpMovetalk=0' ) . ')';
+                       }
+               // Show undelete link
+               } else if( self::typeAction($row,array('delete','suppress'),'delete','delete') ) {
+                       $revert = '(' . $this->skin->makeKnownLinkObj( SpecialPage::getTitleFor( 'Undelete' ),
+                               $this->message['undeletelink'], 'target='. urlencode( $title->getPrefixedDBkey() ) ) . ')';
+               // Show unblock/change block link
+               } else if( self::typeAction($row,array('block','suppress'),array('block','reblock'),'block') ) {
+                       $revert = '(' .
+                               $this->skin->link( SpecialPage::getTitleFor( 'Ipblocklist' ),
                                        $this->message['unblocklink'],
-                                       'action=unblock&ip=' . urlencode( $row->log_title ) ) . ')';
-                       // Show change protection link
-                       } else if( ( $row->log_action == 'protect' || $row->log_action == 'modify' ) && $wgUser->isAllowed( 'protect' ) ) {
-                               $revert = '(' .  $this->skin->makeKnownLinkObj( $title, $this->message['protect_change'], 'action=unprotect' ) . ')';
-                       // Show unmerge link
-                       } else if ( $row->log_action == 'merge' ) {
-                               $merge = SpecialPage::getTitleFor( 'Mergehistory' );
-                               $revert = '(' .  $this->skin->makeKnownLinkObj( $merge, $this->message['revertmerge'],
-                                       wfArrayToCGI( 
-                                               array('target' => $paramArray[0], 'dest' => $title->getPrefixedText(), 'mergepoint' => $paramArray[1] ) 
-                                       ) 
-                               ) . ')';
-                       // If an edit was hidden from a page give a review link to the history
-                       } else if( $row->log_action == 'revision' && $wgUser->isAllowed( 'deleterevision' ) && isset($paramArray[2]) ) {
+                                       array(),
+                                       array( 'action' => 'unblock', 'ip' => $row->log_title ),
+                                       'known' ) 
+                               . $this->message['pipe-separator'] .
+                               $this->skin->link( SpecialPage::getTitleFor( 'Blockip', $row->log_title ), 
+                                       $this->message['change-blocklink'],
+                                       array(), array(), 'known' ) .
+                               ')';
+               // Show change protection link
+               } else if( self::typeAction( $row, 'protect', array( 'modify', 'protect', 'unprotect' ) ) ) {
+                       $revert .= ' (' . 
+                               $this->skin->link( $title,
+                                       $this->message['hist'],
+                                       array(),
+                                       array( 'action' => 'history', 'offset' => $row->log_timestamp ) );
+                       if( $wgUser->isAllowed( 'protect' ) ) {
+                               $revert .= $this->message['pipe-separator'] .
+                                       $this->skin->link( $title,
+                                               $this->message['protect_change'],
+                                               array(),
+                                               array( 'action' => 'protect' ),
+                                               'known' );
+                       }
+                       $revert .= ')';
+               // Show unmerge link
+               } else if( self::typeAction($row,'merge','merge','mergehistory') ) {
+                       $merge = SpecialPage::getTitleFor( 'Mergehistory' );
+                       $revert = '(' .  $this->skin->makeKnownLinkObj( $merge, $this->message['revertmerge'],
+                               wfArrayToCGI( array('target' => $paramArray[0], 'dest' => $title->getPrefixedDBkey(), 
+                                       'mergepoint' => $paramArray[1] ) ) ) . ')';
+               // If an edit was hidden from a page give a review link to the history
+               } else if( self::typeAction($row,array('delete','suppress'),'revision','deleterevision') ) {
+                       if( count($paramArray) >= 2 ) {
                                $revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
                                // Different revision types use different URL params...
-                               $subtype = isset($paramArray[2]) ? $paramArray[1] : '';
-                               // Link to each hidden object ID, $paramArray[1] is the url param. List if several...
-                               $Ids = explode( ',', $paramArray[2] );
-                               if( count($Ids) == 1 ) {
-                                       $revert = $this->skin->makeKnownLinkObj( $revdel, $this->message['revdel-restore'],
-                                               wfArrayToCGI( array('target' => $paramArray[0], $paramArray[1] => $Ids[0] ) ) );
-                               } else {
-                                       $revert .= $this->message['revdel-restore'].':';
-                                       foreach( $Ids as $n => $id ) {
-                                               $revert .= ' '.$this->skin->makeKnownLinkObj( $revdel, '#'.($n+1),
-                                                       wfArrayToCGI( array('target' => $paramArray[0], $paramArray[1] => $id ) ) );
-                                       }
+                               $key = $paramArray[0];
+                               // $paramArray[1] is a CVS of the IDs
+                               $Ids = explode( ',', $paramArray[1] );
+                               $query = urlencode($paramArray[1]);
+                               $revert = array();
+                               // Diff link for single rev deletions
+                               if( $key === 'oldid' && count($Ids) == 1 ) {
+                                       $token = urlencode( $wgUser->editToken( intval($Ids[0]) ) );
+                                       $revert[] = $this->skin->makeKnownLinkObj( $title, $this->message['diff'], 
+                                               'diff='.intval($Ids[0])."&unhide=1&token=$token" );
                                }
-                               $revert = "($revert)";
-                       // Hidden log items, give review link
-                       } else if( $row->log_action == 'event' && $wgUser->isAllowed( 'deleterevision' ) && isset($paramArray[0]) ) {
+                               // View/modify link...
+                               $revert[] = $this->skin->makeKnownLinkObj( $revdel, $this->message['revdel-restore'],
+                                       'target='.$title->getPrefixedUrl()."&$key=$query" );
+                               // Pipe links
+                               $revert = '(' . implode(' | ',$revert) . ')';
+                       }
+               // Hidden log items, give review link
+               } else if( self::typeAction($row,array('delete','suppress'),'event','deleterevision') ) {
+                       if( count($paramArray) >= 1 ) {
                                $revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
-                               $revert .= $this->message['revdel-restore'];
+                               // $paramArray[1] is a CVS of the IDs
                                $Ids = explode( ',', $paramArray[0] );
-                               // Link to each hidden object ID, $paramArray[1] is the url param. List if several...
-                               if( count($Ids) == 1 ) {
-                                       $revert = $this->skin->makeKnownLinkObj( $revdel, $this->message['revdel-restore'],
-                                               wfArrayToCGI( array('logid' => $Ids[0] ) ) );
-                               } else {
-                                       foreach( $Ids as $n => $id ) {
-                                               $revert .= $this->skin->makeKnownLinkObj( $revdel, '#'.($n+1),
-                                                       wfArrayToCGI( array('logid' => $id ) ) );
-                                       }
-                               }
-                               $revert = "($revert)";
+                               $query = urlencode($paramArray[0]);
+                               // Link to each hidden object ID, $paramArray[1] is the url param
+                               $revert = '(' . $this->skin->makeKnownLinkObj( $revdel, $this->message['revdel-restore'], 
+                                       'target='.$title->getPrefixedUrl()."&logid=$query" ) . ')';
+                       }
+               // Self-created users
+               } else if( self::typeAction($row,'newusers','create2') ) {
+                       if( isset( $paramArray[0] ) ) {
+                               $revert = $this->skin->userToolLinks( $paramArray[0], $title->getDBkey(), true );
                        } else {
-                               wfRunHooks( 'LogLine', array( $row->log_type, $row->log_action, $title, $paramArray, 
-                                       &$comment, &$revert, $row->log_timestamp ) );
-                               // wfDebug( "Invoked LogLine hook for " $row->log_type . ", " . $row->log_action . "\n" );
-                               // Do nothing. The implementation is handled by the hook modifiying the passed-by-ref parameters.
+                               # Fall back to a blue contributions link
+                               $revert = $this->skin->userToolLinks( 1, $title->getDBkey() );
                        }
+                       if( $time < '20080129000000' ) {
+                               # Suppress $comment from old entries (before 2008-01-29),
+                               # not needed and can contain incorrect links
+                               $comment = '';
+                       }
+               // Do nothing. The implementation is handled by the hook modifiying the passed-by-ref parameters.
+               } else {
+                       wfRunHooks( 'LogLine', array( $row->log_type, $row->log_action, $title, $paramArray,
+                               &$comment, &$revert, $row->log_timestamp ) );
                }
                // Event description
                if( self::isDeleted($row,LogPage::DELETED_ACTION) ) {
                        $action = '<span class="history-deleted">' . wfMsgHtml('rev-deleted-event') . '</span>';
                } else {
-                       $action = LogPage::actionText( $row->log_type, $row->log_action, $title, $this->skin, $paramArray, true );
+                       $action = LogPage::actionText( $row->log_type, $row->log_action, $title,
+                               $this->skin, $paramArray, true );
                }
-               
-               return "<li>$del$time $userLink $action $comment $revert</li>\n";
+
+               // Any tags...
+               list($tagDisplay, $newClasses) = ChangeTags::formatSummaryRow( $row->ts_tags, 'logevent' );
+               $classes = array_merge( $classes, $newClasses );
+
+               if( $revert != '' ) {
+                       $revert = '<span class="mw-logevent-actionlink">' . $revert . '</span>';
+               }
+
+               return Xml::tags( 'li', array( "class" => implode( ' ', $classes ) ),
+                       $del . $time . ' ' . $userLink . ' ' . $action . ' ' . $comment . ' ' . $revert . " $tagDisplay" ) . "\n";
        }
-       
+
        /**
-        * @param Row $row
-        * @private
+        * @param $row Row
+        * @return string
         */
-       private function showhideLinks( $row ) {
-               global $wgAllowLogDeletion;
-               
-               if( !$wgAllowLogDeletion )
-                       return "";
-       
+       private function getShowHideLinks( $row ) {
                $revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
                // If event was hidden from sysops
                if( !self::userCan( $row, LogPage::DELETED_RESTRICTED ) ) {
-                       $del = $this->message['rev-delundel'];
+                       $del = Xml::tags( 'span', array( 'class'=>'mw-revdelundel-link' ),
+                               '('.$this->message['rev-delundel'].')' );
                } else if( $row->log_type == 'suppress' ) {
-                       // No one should be hiding from the oversight log
-                       $del = $this->message['rev-delundel'];
+                       $del = ''; // No one should be hiding from the oversight log
                } else {
-                       $del = $this->skin->makeKnownLinkObj( $revdel, $this->message['rev-delundel'], 'logid='.$row->log_id );
-                       // Bolden oversighted content
-                       if( self::isDeleted( $row, LogPage::DELETED_RESTRICTED ) )
-                               $del = "<strong>$del</strong>";
+                       $target = SpecialPage::getTitleFor( 'Log', $row->log_type );
+                       $page = Title::makeTitle( $row->log_namespace, $row->log_title );
+                       $query = array( 'target' => $target->getPrefixedDBkey(),
+                               'logid' => $row->log_id, 'page' => $page->getPrefixedDBkey() );
+                       $del = $this->skin->revDeleteLink( $query,
+                               self::isDeleted( $row, LogPage::DELETED_RESTRICTED ) );
                }
-               return "<tt>(<small>$del</small>)</tt>";
+               return $del;
        }
-       
+
+       /**
+        * @param $row Row
+        * @param $type Mixed: string/array
+        * @param $action Mixed: string/array
+        * @param $right string
+        * @return bool
+        */
+       public static function typeAction( $row, $type, $action, $right='' ) {
+               $match = is_array($type) ?
+                       in_array($row->log_type,$type) : $row->log_type == $type;
+               if( $match ) {
+                       $match = is_array($action) ?
+                               in_array($row->log_action,$action) : $row->log_action == $action;
+                       if( $match && $right ) {
+                               global $wgUser;
+                               $match = $wgUser->isAllowed( $right );
+                       }
+               }
+               return $match;
+       }
+
        /**
         * Determine if the current user is allowed to view a particular
         * field of this log row, if it's marked as deleted.
-        * @param Row $row
-        * @param int $field
-        * @return bool
+        * @param $row Row
+        * @param $field Integer
+        * @return Boolean
         */
        public static function userCan( $row, $field ) {
                if( ( $row->log_deleted & $field ) == $field ) {
                        global $wgUser;
                        $permission = ( $row->log_deleted & LogPage::DELETED_RESTRICTED ) == LogPage::DELETED_RESTRICTED
-                               ? 'hiderevision'
+                               ? 'suppressrevision'
                                : 'deleterevision';
                        wfDebug( "Checking for $permission due to $field match on $row->log_deleted\n" );
                        return $wgUser->isAllowed( $permission );
@@ -305,26 +416,29 @@ class LogEventsList {
        }
 
        /**
-        * @param Row $row
-        * @param int $field one of DELETED_* bitfield constants
-        * @return bool
+        * @param $row Row
+        * @param $field Integer: one of DELETED_* bitfield constants
+        * @return Boolean
         */
        public static function isDeleted( $row, $field ) {
                return ($row->log_deleted & $field) == $field;
        }
-       
+
        /**
         * Quick function to show a short log extract
-        * @param OutputPage $out
-        * @param string $type
-        * @param string $page
-        * @param string $user
+        * @param $out OutputPage
+        * @param $type String
+        * @param $page String
+        * @param $user String
+        * @param $lim Integer
+        * @param $conds Array
         */
-        public static function showLogExtract( $out, $type='', $page='', $user='' ) {
+       public static function showLogExtract( $out, $type='', $page='', $user='', $lim=0, $conds=array() ) {
                global $wgUser;
                # Insert list of top 50 or so items
-               $loglist = new LogEventsList( $wgUser->getSkin() );
-               $pager = new LogPager( $loglist, $type, $user, $page, '' );
+               $loglist = new LogEventsList( $wgUser->getSkin(), $out, 0 );
+               $pager = new LogPager( $loglist, $type, $user, $page, '', $conds );
+               if( $lim > 0 ) $pager->mLimit = $lim;
                $logBody = $pager->getBody();
                if( $logBody ) {
                        $out->addHTML(
@@ -335,27 +449,29 @@ class LogEventsList {
                } else {
                        $out->addWikiMsg( 'logempty' );
                }
-        }
-        
-        /**
+               return $pager->getNumRows();
+       }
+
+       /**
         * SQL clause to skip forbidden log types for this user
-        * @param Database $db
-        * @returns mixed (string or false)
+        * @param $db Database
+        * @param $audience string, public/user
+        * @return mixed (string or false)
         */
-       public static function getExcludeClause( $db ) {
+       public static function getExcludeClause( $db, $audience = 'public' ) {
                global $wgLogRestrictions, $wgUser;
                // Reset the array, clears extra "where" clauses when $par is used
                $hiddenLogs = array();
                // Don't show private logs to unprivileged users
-               foreach( $wgLogRestrictions as $logtype => $right ) {
-                       if( !$wgUser->isAllowed($right) ) {
-                               $safetype = $db->strencode( $logtype );
-                               $hiddenLogs[] = $safetype;
+               foreach( $wgLogRestrictions as $logType => $right ) {
+                       if( $audience == 'public' || !$wgUser->isAllowed($right) ) {
+                               $safeType = $db->strencode( $logType );
+                               $hiddenLogs[] = $safeType;
                        }
                }
                if( count($hiddenLogs) == 1 ) {
                        return 'log_type != ' . $db->addQuotes( $hiddenLogs[0] );
-               } elseif( !empty( $hiddenLogs ) ) {
+               } elseif( $hiddenLogs ) {
                        return 'log_type NOT IN (' . $db->makeList($hiddenLogs) . ')';
                }
                return false;
@@ -363,67 +479,98 @@ class LogEventsList {
 }
 
 /**
- * @addtogroup Pager
+ * @ingroup Pager
  */
 class LogPager extends ReverseChronologicalPager {
        private $type = '', $user = '', $title = '', $pattern = '';
        public $mLogEventsList;
+
        /**
-       * constructor
-       * @param LogEventsList $loglist,
-       * @param string $type,
-       * @param string $user,
-       * @param string $page,
-       * @param string $pattern
-       * @param array $conds
-       */
-       function __construct( $loglist, $type='', $user='', $title='', $pattern='', $conds = array() ) {
+        * constructor
+        * @param $list LogEventsList
+        * @param $type String
+        * @param $user String
+        * @param $title String
+        * @param $pattern String
+        * @param $conds Array
+        * @param $year Integer
+        * @param $month Integer
+        */
+       public function __construct( $list, $type = '', $user = '', $title = '', $pattern = '', 
+               $conds = array(), $year = false, $month = false, $tagFilter = '' ) 
+       {
                parent::__construct();
                $this->mConds = $conds;
-               
-               $this->mLogEventsList = $loglist;
-               
-               $this->limitType( $type );
+
+               $this->mLogEventsList = $list;
+
+               $this->limitType( $type ); // also excludes hidden types
                $this->limitUser( $user );
                $this->limitTitle( $title, $pattern );
+               $this->getDateCond( $year, $month );
+               $this->mTagFilter = $tagFilter;
        }
-       
-       function getDefaultQuery() {
+
+       public function getDefaultQuery() {
                $query = parent::getDefaultQuery();
                $query['type'] = $this->type;
+               $query['user'] = $this->user;
+               $query['month'] = $this->mMonth;
+               $query['year'] = $this->mYear;
                return $query;
        }
-       
+
+       public function getFilterParams() {
+               global $wgFilterLogTypes, $wgUser, $wgRequest;
+               $filters = array();
+               if( $this->type ) {
+                       return $filters;
+               }
+               foreach( $wgFilterLogTypes as $type => $default ) {
+                       // Avoid silly filtering
+                       if( $type !== 'patrol' || $wgUser->useNPPatrol() ) {
+                               $hide = $wgRequest->getInt( "hide_{$type}_log", $default );
+                               $filters[$type] = $hide;
+                               if( $hide )
+                                       $this->mConds[] = 'log_type != ' . $this->mDb->addQuotes( $type );
+                       }
+               }
+               return $filters;
+       }
+
        /**
         * Set the log reader to return only entries of the given type.
         * Type restrictions enforced here
-        * @param string $type A log type ('upload', 'delete', etc)
-        * @private
+        * @param $types String or array: Log types ('upload', 'delete', etc)
         */
-       private function limitType( $type ) {
+       private function limitType( $types ) {
                global $wgLogRestrictions, $wgUser;
+               // If $types is not an array, make it an array
+               $types = (array)$types;
                // Don't even show header for private logs; don't recognize it...
-               if( isset($wgLogRestrictions[$type]) && !$wgUser->isAllowed($wgLogRestrictions[$type]) ) {
-                       $type = '';
+               foreach ( $types as $type ) {
+                       if( isset( $wgLogRestrictions[$type] ) && !$wgUser->isAllowed($wgLogRestrictions[$type]) ) {
+                               $types = array_diff( $types, array( $type ) );
+                       }
                }
-               // Don't show private logs to unpriviledged users
-               $hideLogs = LogEventsList::getExcludeClause( $this->mDb );
+               // Don't show private logs to unprivileged users.
+               // Also, only show them upon specific request to avoid suprises.
+               $audience = $types ? 'user' : 'public';
+               $hideLogs = LogEventsList::getExcludeClause( $this->mDb, $audience );
                if( $hideLogs !== false ) {
                        $this->mConds[] = $hideLogs;
                }
-               if( empty($type) ) {
-                       return false;
+               if( $types ) {
+                       $this->type = $types;
+                       $this->mConds['log_type'] = $types;
                }
-               $this->type = $type;
-               $this->mConds['log_type'] = $type;
        }
-       
+
        /**
         * Set the log reader to return only entries by the given user.
-        * @param string $name (In)valid user name
-        * @private
+        * @param $name String: (In)valid user name
         */
-       function limitUser( $name ) {
+       private function limitUser( $name ) {
                if( $name == '' ) {
                        return false;
                }
@@ -434,11 +581,16 @@ class LogPager extends ReverseChronologicalPager {
                /* Fetch userid at first, if known, provides awesome query plan afterwards */
                $userid = User::idFromName( $name );
                if( !$userid ) {
-                       /* It should be nicer to abort query at all, 
+                       /* It should be nicer to abort query at all,
                           but for now it won't pass anywhere behind the optimizer */
                        $this->mConds[] = "NULL";
                } else {
+                       global $wgUser;
                        $this->mConds['log_user'] = $userid;
+                       // Paranoia: avoid brute force searches (bug 17342)
+                       if( !$wgUser->isAllowed( 'suppressrevision' ) ) {
+                               $this->mConds[] = 'log_deleted & ' . LogPage::DELETED_USER . ' = 0';
+                       }
                        $this->user = $usertitle->getText();
                }
        }
@@ -446,18 +598,29 @@ class LogPager extends ReverseChronologicalPager {
        /**
         * Set the log reader to return only entries affecting the given page.
         * (For the block and rights logs, this is a user page.)
-        * @param string $page Title name as text
-        * @private
+        * @param $page String: Title name as text
+        * @param $pattern String
         */
-       function limitTitle( $page, $pattern ) {
-               global $wgMiserMode;
-               
+       private function limitTitle( $page, $pattern ) {
+               global $wgMiserMode, $wgUser;
+
                $title = Title::newFromText( $page );
                if( strlen($page) == 0 || !$title instanceof Title )
                        return false;
-               
+
                $this->title = $title->getPrefixedText();
                $ns = $title->getNamespace();
+               # Using the (log_namespace, log_title, log_timestamp) index with a
+               # range scan (LIKE) on the first two parts, instead of simple equality,
+               # makes it unusable for sorting.  Sorted retrieval using another index
+               # would be possible, but then we might have to scan arbitrarily many
+               # nodes of that index. Therefore, we need to avoid this if $wgMiserMode
+               # is on.
+               #
+               # This is not a problem with simple title matches, because then we can
+               # use the page_time index.  That should have no more than a few hundred
+               # log entries for even the busiest pages, so it can be safely scanned
+               # in full to satisfy an impossible condition on user or similar.
                if( $pattern && !$wgMiserMode ) {
                        # use escapeLike to avoid expensive search patterns like 't%st%'
                        $safetitle = $this->mDb->escapeLike( $title->getDBkey() );
@@ -468,13 +631,14 @@ class LogPager extends ReverseChronologicalPager {
                        $this->mConds['log_namespace'] = $ns;
                        $this->mConds['log_title'] = $title->getDBkey();
                }
+               // Paranoia: avoid brute force searches (bug 17342)
+               if( !$wgUser->isAllowed( 'suppressrevision' ) ) {
+                       $this->mConds[] = 'log_deleted & ' . LogPage::DELETED_ACTION . ' = 0';
+               }
        }
 
-       function getQueryInfo() {
+       public function getQueryInfo() {
                $this->mConds[] = 'user_id = log_user';
-               # Hack this until live
-               global $wgAllowLogDeletion;
-               $log_id = $wgAllowLogDeletion ? 'log_id' : '0 AS log_id';
                # Don't use the wrong logging index
                if( $this->title || $this->pattern || $this->user ) {
                        $index = array( 'USE INDEX' => array( 'logging' => array('page_time','user_time') ) );
@@ -483,20 +647,26 @@ class LogPager extends ReverseChronologicalPager {
                } else {
                        $index = array( 'USE INDEX' => array( 'logging' => 'times' ) );
                }
-               return array(
+               $info = array(
                        'tables' => array( 'logging', 'user' ),
-                       'fields' => array( 'log_type', 'log_action', 'log_user', 'log_namespace', 'log_title', 'log_params', 
-                               'log_comment', $log_id, 'log_deleted', 'log_timestamp', 'user_name', 'user_editcount' ),
+                       'fields' => array( 'log_type', 'log_action', 'log_user', 'log_namespace', 'log_title', 'log_params',
+                               'log_comment', 'log_id', 'log_deleted', 'log_timestamp', 'user_name', 'user_editcount' ),
                        'conds' => $this->mConds,
-                       'options' => $index
+                       'options' => $index,
+                       'join_conds' => array( 'user' => array( 'INNER JOIN', 'user_id=log_user' ) ),
                );
+
+               ChangeTags::modifyDisplayQuery( $info['tables'], $info['fields'], $info['conds'],
+                       $info['join_conds'], $info['options'], $this->mTagFilter );
+
+               return $info;
        }
 
        function getIndexField() {
                return 'log_timestamp';
        }
-       
-       function getStartBody() {
+
+       public function getStartBody() {
                wfProfileIn( __METHOD__ );
                # Do a link batch query
                if( $this->getNumRows() > 0 ) {
@@ -513,48 +683,70 @@ class LogPager extends ReverseChronologicalPager {
                return '';
        }
 
-       function formatRow( $row ) {
+       public function formatRow( $row ) {
                return $this->mLogEventsList->logLine( $row );
        }
-       
+
        public function getType() {
                return $this->type;
        }
-       
+
        public function getUser() {
                return $this->user;
        }
-       
+
        public function getPage() {
                return $this->title;
        }
-       
+
        public function getPattern() {
                return $this->pattern;
        }
+
+       public function getYear() {
+               return $this->mYear;
+       }
+
+       public function getMonth() {
+               return $this->mMonth;
+       }
+
+       public function getTagFilter() {
+               return $this->mTagFilter;
+       }
 }
 
 /**
- *
- * @addtogroup SpecialPage
+ * @deprecated
+ * @ingroup SpecialPage
  */
 class LogReader {
        var $pager;
        /**
-        * @param WebRequest $request For internal use use a FauxRequest object to pass arbitrary parameters.
+        * @param $request WebRequest: for internal use use a FauxRequest object to pass arbitrary parameters.
         */
        function __construct( $request ) {
-               global $wgUser;
+               global $wgUser, $wgOut;
+               wfDeprecated(__METHOD__);
                # Get parameters
                $type = $request->getVal( 'type' );
                $user = $request->getText( 'user' );
                $title = $request->getText( 'page' );
                $pattern = $request->getBool( 'pattern' );
-               
-               $loglist = new LogEventsList( $wgUser->getSkin() );
-               $this->pager = new LogPager( $loglist, $type, $user, $title, $pattern );
+               $year = $request->getIntOrNull( 'year' );
+               $month = $request->getIntOrNull( 'month' );
+               $tagFilter = $request->getVal( 'tagfilter' );
+               # Don't let the user get stuck with a certain date
+               $skip = $request->getText( 'offset' ) || $request->getText( 'dir' ) == 'prev';
+               if( $skip ) {
+                       $year = '';
+                       $month = '';
+               }
+               # Use new list class to output results
+               $loglist = new LogEventsList( $wgUser->getSkin(), $wgOut, 0 );
+               $this->pager = new LogPager( $loglist, $type, $user, $title, $pattern, $year, $month, $tagFilter );
        }
-       
+
        /**
        * Is there at least one row?
        * @return bool
@@ -565,47 +757,49 @@ class LogReader {
 }
 
 /**
- *
- * @addtogroup SpecialPage
+ * @deprecated
+ * @ingroup SpecialPage
  */
 class LogViewer {
        const NO_ACTION_LINK = 1;
+
        /**
-        * @var LogReader $reader
+        * LogReader object
         */
        var $reader;
+
        /**
-        * @param LogReader &$reader where to get our data from
-        * @param integer $flags Bitwise combination of flags:
+        * @param &$reader LogReader: where to get our data from
+        * @param $flags Integer: Bitwise combination of flags:
         *     LogEventsList::NO_ACTION_LINK   Don't show restore/unblock/block links
         */
        function __construct( &$reader, $flags = 0 ) {
                global $wgUser;
+               wfDeprecated(__METHOD__);
                $this->reader =& $reader;
                $this->reader->pager->mLogEventsList->flags = $flags;
                # Aliases for shorter code...
                $this->pager =& $this->reader->pager;
-               $this->logEventsList =& $this->reader->pager->mLogEventsList;
+               $this->list =& $this->reader->pager->mLogEventsList;
        }
 
        /**
         * Take over the whole output page in $wgOut with the log display.
         */
        public function show() {
-               global $wgOut;
                # Set title and add header
-               $this->logEventsList->showHeader( $wgOut, $pager->getType() );
+               $this->list->showHeader( $pager->getType() );
                # Show form options
-               $this->logEventsList->showOptions( $wgOut, $this->pager->getType(), $this->pager->getUser(), 
-                       $this->pager->getPage(), $this->pager->getPattern() );
+               $this->list->showOptions( $this->pager->getType(), $this->pager->getUser(), $this->pager->getPage(),
+                       $this->pager->getPattern(), $this->pager->getYear(), $this->pager->getMonth() );
                # Insert list
                $logBody = $this->pager->getBody();
                if( $logBody ) {
                        $wgOut->addHTML(
-                               $this->pager->getNavigationBar() . 
-                               $this->logEventsList->beginLogEventsList() .
+                               $this->pager->getNavigationBar() .
+                               $this->list->beginLogEventsList() .
                                $logBody .
-                               $this->logEventsList->endLogEventsList() .
+                               $this->list->endLogEventsList() .
                                $this->pager->getNavigationBar()
                        );
                } else {
@@ -617,19 +811,18 @@ class LogViewer {
         * Output just the list of entries given by the linked LogReader,
         * with extraneous UI elements. Use for displaying log fragments in
         * another page (eg at Special:Undelete)
-        * @param OutputPage $out where to send output
+        * @param $out OutputPage: where to send output
         */
        public function showList( &$out ) {
                $logBody = $this->pager->getBody();
                if( $logBody ) {
                        $out->addHTML(
-                               $this->logEventsList->beginLogEventsList() .
+                               $this->list->beginLogEventsList() .
                                $logBody .
-                               $this->logEventsList->endLogEventsList()
+                               $this->list->endLogEventsList()
                        );
                } else {
                        $out->addWikiMsg( 'logempty' );
                }
        }
 }
-