357 lines
9.7 KiB
PHP
357 lines
9.7 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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# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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# http://www.gnu.org/copyleft/gpl.html
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/**
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*
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* @package MediaWiki
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* @subpackage 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' ) && !empty( $par ) ) {
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$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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* @package MediaWiki
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* @subpackage 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;
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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( $request ) {
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$cur = $this->db->tableName( 'cur' );
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$user = $this->db->tableName( 'user' );
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$this->joinClauses = array( "LEFT OUTER JOIN $cur ON log_namespace=cur_namespace AND log_title=cur_title" );
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$this->whereClauses = array( 'user_id=log_user' );
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$this->limitType( $request->getVal( 'type' ) );
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$this->limitUser( $request->getText( 'user' ) );
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$this->limitTitle( $request->getText( 'page' ) );
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$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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}
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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 Valid user name
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* @private
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*/
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function limitUser( $name ) {
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$title = Title::makeTitle( NS_USER, $name );
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if( empty( $name ) || is_null( $title ) ) {
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return false;
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}
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$this->user = str_replace( '_', ' ', $title->getDBkey() );
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$safename = $this->db->strencode( $this->user );
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$user = $this->db->tableName( 'user' );
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$this->whereClauses[] = "user_name='$safename'";
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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( $page ) {
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$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 =& $title;
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$safetitle = $this->db->strencode( $title->getDBkey() );
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$ns = $title->getNamespace();
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$this->whereClauses[] = "log_namespace=$ns AND log_title='$safetitle'";
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}
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/**
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* 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 = $this->db->tableName( "logging" );
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$user = $this->db->tableName( 'user' );
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$sql = "SELECT log_type, log_action, log_timestamp,
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log_user, user_name,
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log_namespace, log_title, cur_id,
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log_comment FROM $user, $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( $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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return $this->db->resultObject( $this->db->query( $this->getQuery() ) );
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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 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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* @package MediaWiki
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* @subpackage 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 $reader;
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/**
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* @param LogReader &$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( $wgOut );
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$this->showPrevNext( $wgOut );
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$this->showList( $wgOut );
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$this->showPrevNext( $wgOut );
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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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$html = "";
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$result = $this->reader->getRows();
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while( $s = $result->fetchObject() ) {
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$html .= $this->logLine( $s );
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}
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$result->free();
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$out->addHTML( $html );
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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 $wgLang;
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$title = Title::makeTitle( $s->log_namespace, $s->log_title );
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$user = Title::makeTitleSafe( NS_USER, $s->user_name );
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$time = $wgLang->timeanddate( $s->log_timestamp );
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if( $s->cur_id ) {
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$titleLink = $this->skin->makeKnownLinkObj( $title );
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} else {
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$titleLink = $this->skin->makeBrokenLinkObj( $title );
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}
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$userLink = $this->skin->makeLinkObj( $user, htmlspecialchars( $s->user_name ) );
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if( '' === $s->log_comment ) {
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$comment = '';
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} else {
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$comment = '(<em>' . $this->skin->formatComment( $s->log_comment ) . '</em>)';
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}
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$action = LogPage::actionText( $s->log_type, $s->log_action, $titleLink );
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$out = "<li>$time $userLink $action $comment</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 $wgScript;
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$action = htmlspecialchars( $wgScript );
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$title = Title::makeTitle( NS_SPECIAL, 'Log' );
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$special = htmlspecialchars( $title->getPrefixedDBkey() );
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$out->addHTML( "<form action=\"$action\" method=\"get\">\n" .
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"<input type='hidden' name='title' value=\"$special\" />\n" .
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$this->getTypeMenu() .
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$this->getUserInput() .
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$this->getTitleInput() .
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"<input type='submit' />" .
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"</form>" );
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}
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/**
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* @return string Formatted HTML
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* @private
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*/
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function getTypeMenu() {
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$out = "<select name='type'>\n";
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foreach( LogPage::validTypes() as $type ) {
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$text = htmlspecialchars( LogPage::logName( $type ) );
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$selected = ($type == $this->reader->queryType()) ? ' selected="selected"' : '';
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$out .= "<option value=\"$type\"$selected>$text</option>\n";
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}
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$out .= "</select>\n";
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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 = htmlspecialchars( $this->reader->queryUser() );
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return "User: <input type='text' name='user' size='12' value=\"$user\" />\n";
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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 = htmlspecialchars( $this->reader->queryTitle() );
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return "Title: <input type='text' name='page' size='20' value=\"$title\" />\n";
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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 $wgContLang;
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$pieces = array();
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$pieces[] = 'type=' . htmlspecialchars( $this->reader->queryType() );
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$pieces[] = 'user=' . htmlspecialchars( $this->reader->queryUser() );
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$pieces[] = 'page=' . htmlspecialchars( $this->reader->queryTitle() );
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$bits = implode( '&', $pieces );
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$offset = 0; $limit = 50;
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# TODO: use timestamps instead of offsets to make it more natural
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# to go huge distances in time
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$html = wfViewPrevNext( $offset, $limit,
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$wgContLang->specialpage( 'Log' ),
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$bits,
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false);
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$out->addHTML( '<p>' . $html . '</p>' );
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}
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}
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?>
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