500 lines
14 KiB
PHP
500 lines
14 KiB
PHP
<?php
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# Copyright (C) 2004 Brion Vibber <brion@pobox.com>
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# http://www.mediawiki.org/
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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# http://www.gnu.org/copyleft/gpl.html
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/**
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*
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* @addtogroup SpecialPage
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*/
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/**
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* constructor
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*/
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function wfSpecialLog( $par = '' ) {
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global $wgRequest;
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$logReader = new LogReader( $wgRequest );
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if( $wgRequest->getVal( 'type' ) == '' && $par != '' ) {
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$logReader->limitType( $par );
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}
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$logViewer = new LogViewer( $logReader );
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$logViewer->show();
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}
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/**
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*
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* @addtogroup SpecialPage
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*/
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class LogReader {
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var $db, $joinClauses, $whereClauses;
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var $type = '', $user = '', $title = null, $pattern = false;
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/**
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* @param WebRequest $request For internal use use a FauxRequest object to pass arbitrary parameters.
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*/
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function LogReader( $request ) {
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$this->db = wfGetDB( DB_SLAVE );
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$this->setupQuery( $request );
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}
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/**
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* Basic setup and applies the limiting factors from the WebRequest object.
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* @param WebRequest $request
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* @private
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*/
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function setupQuery( $request ) {
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$page = $this->db->tableName( 'page' );
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$user = $this->db->tableName( 'user' );
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$this->joinClauses = array(
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"LEFT OUTER JOIN $page ON log_namespace=page_namespace AND log_title=page_title",
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"INNER JOIN $user ON user_id=log_user" );
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$this->whereClauses = array();
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$this->limitType( $request->getVal( 'type' ) );
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$this->limitUser( $request->getText( 'user' ) );
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$this->limitTitle( $request->getText( 'page' ) , $request->getBool( 'pattern' ) );
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$this->limitTime( $request->getVal( 'from' ), '>=' );
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$this->limitTime( $request->getVal( 'until' ), '<=' );
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list( $this->limit, $this->offset ) = $request->getLimitOffset();
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// XXX This all needs to use Pager, ugly hack for now.
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global $wgMiserMode;
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if ($wgMiserMode && ($this->offset >10000)) $this->offset=10000;
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}
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/**
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* Set the log reader to return only entries of the given type.
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* @param string $type A log type ('upload', 'delete', etc)
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* @private
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*/
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function limitType( $type ) {
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if( empty( $type ) ) {
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return false;
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}
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$this->type = $type;
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$safetype = $this->db->strencode( $type );
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$this->whereClauses[] = "log_type='$safetype'";
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}
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/**
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* Set the log reader to return only entries by the given user.
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* @param string $name (In)valid user name
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* @private
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*/
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function limitUser( $name ) {
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if ( $name == '' )
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return false;
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$usertitle = Title::makeTitleSafe( NS_USER, $name );
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if ( is_null( $usertitle ) )
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return false;
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$this->user = $usertitle->getText();
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/* Fetch userid at first, if known, provides awesome query plan afterwards */
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$userid = $this->db->selectField('user','user_id',array('user_name'=>$this->user));
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if (!$userid)
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/* It should be nicer to abort query at all,
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but for now it won't pass anywhere behind the optimizer */
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$this->whereClauses[] = "NULL";
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else
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$this->whereClauses[] = "log_user=$userid";
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}
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/**
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* Set the log reader to return only entries affecting the given page.
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* (For the block and rights logs, this is a user page.)
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* @param string $page Title name as text
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* @private
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*/
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function limitTitle( $page , $pattern ) {
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global $wgMiserMode;
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$title = Title::newFromText( $page );
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if( empty( $page ) || is_null( $title ) ) {
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return false;
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}
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$this->title =& $title;
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$this->pattern = $pattern;
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$ns = $title->getNamespace();
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if ( $pattern && !$wgMiserMode ) {
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$safetitle = $this->db->escapeLike( $title->getDBkey() ); // use escapeLike to avoid expensive search patterns like 't%st%'
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$this->whereClauses[] = "log_namespace=$ns AND log_title LIKE '$safetitle%'";
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} else {
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$safetitle = $this->db->strencode( $title->getDBkey() );
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$this->whereClauses[] = "log_namespace=$ns AND log_title = '$safetitle'";
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}
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}
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/**
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* Set the log reader to return only entries in a given time range.
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* @param string $time Timestamp of one endpoint
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* @param string $direction either ">=" or "<=" operators
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* @private
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*/
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function limitTime( $time, $direction ) {
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# Direction should be a comparison operator
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if( empty( $time ) ) {
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return false;
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}
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$safetime = $this->db->strencode( wfTimestamp( TS_MW, $time ) );
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$this->whereClauses[] = "log_timestamp $direction '$safetime'";
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}
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/**
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* Build an SQL query from all the set parameters.
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* @return string the SQL query
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* @private
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*/
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function getQuery() {
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$logging = $this->db->tableName( "logging" );
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$sql = "SELECT /*! STRAIGHT_JOIN */ log_type, log_action, log_timestamp,
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log_user, user_name,
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log_namespace, log_title, page_id,
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log_comment, log_params FROM $logging ";
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if( !empty( $this->joinClauses ) ) {
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$sql .= implode( ' ', $this->joinClauses );
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}
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if( !empty( $this->whereClauses ) ) {
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$sql .= " WHERE " . implode( ' AND ', $this->whereClauses );
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}
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$sql .= " ORDER BY log_timestamp DESC ";
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$sql = $this->db->limitResult($sql, $this->limit, $this->offset );
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return $sql;
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}
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/**
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* Execute the query and start returning results.
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* @return ResultWrapper result object to return the relevant rows
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*/
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function getRows() {
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$res = $this->db->query( $this->getQuery(), 'LogReader::getRows' );
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return $this->db->resultObject( $res );
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}
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/**
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* @return string The query type that this LogReader has been limited to.
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*/
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function queryType() {
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return $this->type;
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}
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/**
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* @return string The username type that this LogReader has been limited to, if any.
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*/
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function queryUser() {
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return $this->user;
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}
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/**
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* @return boolean The checkbox, if titles should be searched by a pattern too
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*/
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function queryPattern() {
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return $this->pattern;
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}
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/**
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* @return string The text of the title that this LogReader has been limited to.
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*/
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function queryTitle() {
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if( is_null( $this->title ) ) {
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return '';
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} else {
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return $this->title->getPrefixedText();
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}
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}
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}
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/**
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*
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* @addtogroup SpecialPage
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*/
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class LogViewer {
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/**
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* @var LogReader $reader
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*/
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var $reader;
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var $numResults = 0;
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/**
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* @param LogReader &$reader where to get our data from
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*/
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function LogViewer( &$reader ) {
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global $wgUser;
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$this->skin = $wgUser->getSkin();
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$this->reader =& $reader;
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}
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/**
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* Take over the whole output page in $wgOut with the log display.
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*/
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function show() {
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global $wgOut;
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$this->showHeader( $wgOut );
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$this->showOptions( $wgOut );
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$result = $this->getLogRows();
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if ( $this->numResults > 0 ) {
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$this->showPrevNext( $wgOut );
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$this->doShowList( $wgOut, $result );
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$this->showPrevNext( $wgOut );
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} else {
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$this->showError( $wgOut );
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}
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}
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/**
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* Load the data from the linked LogReader
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* Preload the link cache
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* Initialise numResults
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*
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* Must be called before calling showPrevNext
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*
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* @return object database result set
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*/
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function getLogRows() {
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$result = $this->reader->getRows();
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$this->numResults = 0;
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// Fetch results and form a batch link existence query
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$batch = new LinkBatch;
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while ( $s = $result->fetchObject() ) {
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// User link
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$batch->addObj( Title::makeTitleSafe( NS_USER, $s->user_name ) );
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$batch->addObj( Title::makeTitleSafe( NS_USER_TALK, $s->user_name ) );
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// Move destination link
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if ( $s->log_type == 'move' ) {
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$paramArray = LogPage::extractParams( $s->log_params );
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$title = Title::newFromText( $paramArray[0] );
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$batch->addObj( $title );
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}
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++$this->numResults;
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}
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$batch->execute();
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return $result;
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}
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/**
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* Output just the list of entries given by the linked LogReader,
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* with extraneous UI elements. Use for displaying log fragments in
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* another page (eg at Special:Undelete)
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* @param OutputPage $out where to send output
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*/
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function showList( &$out ) {
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$result = $this->getLogRows();
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if ( $this->numResults > 0 ) {
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$this->doShowList( $out, $result );
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} else {
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$this->showError( $out );
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}
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}
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function doShowList( &$out, $result ) {
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// Rewind result pointer and go through it again, making the HTML
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$html = "\n<ul>\n";
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$result->seek( 0 );
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while( $s = $result->fetchObject() ) {
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$html .= $this->logLine( $s );
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}
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$html .= "\n</ul>\n";
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$out->addHTML( $html );
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$result->free();
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}
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function showError( &$out ) {
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$out->addWikiText( wfMsg( 'logempty' ) );
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}
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/**
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* @param Object $s a single row from the result set
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* @return string Formatted HTML list item
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* @private
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*/
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function logLine( $s ) {
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global $wgLang, $wgUser;;
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$skin = $wgUser->getSkin();
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$title = Title::makeTitle( $s->log_namespace, $s->log_title );
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$time = $wgLang->timeanddate( wfTimestamp(TS_MW, $s->log_timestamp), true );
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// Enter the existence or non-existence of this page into the link cache,
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// for faster makeLinkObj() in LogPage::actionText()
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$linkCache =& LinkCache::singleton();
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if( $s->page_id ) {
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$linkCache->addGoodLinkObj( $s->page_id, $title );
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} else {
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$linkCache->addBadLinkObj( $title );
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}
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$userLink = $this->skin->userLink( $s->log_user, $s->user_name ) . $this->skin->userToolLinksRedContribs( $s->log_user, $s->user_name );
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$comment = $this->skin->commentBlock( $s->log_comment );
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$paramArray = LogPage::extractParams( $s->log_params );
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$revert = '';
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// show revertmove link
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if ( $s->log_type == 'move' && isset( $paramArray[0] ) ) {
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$destTitle = Title::newFromText( $paramArray[0] );
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if ( $destTitle ) {
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$revert = '(' . $this->skin->makeKnownLinkObj( SpecialPage::getTitleFor( 'Movepage' ),
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wfMsg( 'revertmove' ),
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'wpOldTitle=' . urlencode( $destTitle->getPrefixedDBkey() ) .
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'&wpNewTitle=' . urlencode( $title->getPrefixedDBkey() ) .
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'&wpReason=' . urlencode( wfMsgForContent( 'revertmove' ) ) .
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'&wpMovetalk=0' ) . ')';
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}
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// show undelete link
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} elseif ( $s->log_action == 'delete' && $wgUser->isAllowed( 'delete' ) ) {
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$revert = '(' . $this->skin->makeKnownLinkObj( SpecialPage::getTitleFor( 'Undelete' ),
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wfMsg( 'undeletebtn' ) ,
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'target='. urlencode( $title->getPrefixedDBkey() ) ) . ')';
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// show unblock link
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} elseif ( $s->log_action == 'block' && $wgUser->isAllowed( 'block' ) ) {
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$revert = '(' . $skin->makeKnownLinkObj( SpecialPage::getTitleFor( 'Ipblocklist' ),
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wfMsg( 'unblocklink' ),
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'action=unblock&ip=' . urlencode( $s->log_title ) ) . ')';
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// show change protection link
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} elseif ( $s->log_action == 'protect' && $wgUser->isAllowed( 'protect' ) ) {
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$revert = '(' . $skin->makeKnownLink( $title->getPrefixedDBkey() ,
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wfMsg( 'protect_change' ),
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'action=unprotect' ) . ')';
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// show user tool links for self created users
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} elseif ( $s->log_action == 'create2' ) {
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$revert = $this->skin->userToolLinksRedContribs( $s->log_user, $s->log_title );
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// do not show $comment for self created accounts. It includes wrong user tool links:
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// 'blockip' for users w/o block allowance and broken links for very long usernames (bug 4756)
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$comment = '';
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}
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$action = LogPage::actionText( $s->log_type, $s->log_action, $title, $this->skin, $paramArray, true, true );
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$out = "<li>$time $userLink $action $comment $revert</li>\n";
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return $out;
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}
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/**
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* @param OutputPage &$out where to send output
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* @private
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*/
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function showHeader( &$out ) {
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$type = $this->reader->queryType();
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if( LogPage::isLogType( $type ) ) {
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$out->setPageTitle( LogPage::logName( $type ) );
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$out->addWikiText( LogPage::logHeader( $type ) );
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}
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}
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/**
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* @param OutputPage &$out where to send output
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* @private
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*/
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function showOptions( &$out ) {
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global $wgScript, $wgMiserMode;
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$action = htmlspecialchars( $wgScript );
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$title = SpecialPage::getTitleFor( 'Log' );
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$special = htmlspecialchars( $title->getPrefixedDBkey() );
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$out->addHTML( "<form action=\"$action\" method=\"get\">\n" .
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'<fieldset>' .
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Xml::element( 'legend', array(), wfMsg( 'log' ) ) .
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Xml::hidden( 'title', $special ) . "\n" .
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$this->getTypeMenu() . "\n" .
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$this->getUserInput() . "\n" .
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$this->getTitleInput() . "\n" .
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(!$wgMiserMode?($this->getTitlePattern()."\n"):"") .
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Xml::submitButton( wfMsg( 'allpagessubmit' ) ) . "\n" .
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"</fieldset></form>" );
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}
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/**
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* @return string Formatted HTML
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* @private
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*/
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function getTypeMenu() {
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$out = "<select name='type'>\n";
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$validTypes = LogPage::validTypes();
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$m = array(); // Temporary array
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// First pass to load the log names
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foreach( $validTypes as $type ) {
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$text = LogPage::logName( $type );
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$m[$text] = $type;
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}
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// Second pass to sort by name
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ksort($m);
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// Third pass generates sorted XHTML content
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foreach( $m as $text => $type ) {
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$selected = ($type == $this->reader->queryType());
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$out .= Xml::option( $text, $type, $selected ) . "\n";
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}
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$out .= '</select>';
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return $out;
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}
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/**
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* @return string Formatted HTML
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* @private
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*/
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function getUserInput() {
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$user = $this->reader->queryUser();
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return Xml::inputLabel( wfMsg( 'specialloguserlabel' ), 'user', 'user', 12, $user );
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}
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/**
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* @return string Formatted HTML
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* @private
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*/
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function getTitleInput() {
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$title = $this->reader->queryTitle();
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return Xml::inputLabel( wfMsg( 'speciallogtitlelabel' ), 'page', 'page', 20, $title );
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}
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/**
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* @return boolean Checkbox
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* @private
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*/
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function getTitlePattern() {
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$pattern = $this->reader->queryPattern();
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return Xml::checkLabel( wfMsg( 'log-title-wildcard' ), 'pattern', 'pattern', $pattern );
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}
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/**
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* @param OutputPage &$out where to send output
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* @private
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*/
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function showPrevNext( &$out ) {
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global $wgContLang,$wgRequest;
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$pieces = array();
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$pieces[] = 'type=' . urlencode( $this->reader->queryType() );
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$pieces[] = 'user=' . urlencode( $this->reader->queryUser() );
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$pieces[] = 'page=' . urlencode( $this->reader->queryTitle() );
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$pieces[] = 'pattern=' . urlencode( $this->reader->queryPattern() );
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$bits = implode( '&', $pieces );
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list( $limit, $offset ) = $wgRequest->getLimitOffset();
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# TODO: use timestamps instead of offsets to make it more natural
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# to go huge distances in time
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$html = wfViewPrevNext( $offset, $limit,
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$wgContLang->specialpage( 'Log' ),
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$bits,
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$this->numResults < $limit);
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$out->addHTML( '<p>' . $html . '</p>' );
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}
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}
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?>
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