18062eb3b0
These are needed for OAuth grants. Note that, even if 'editmywatchlist' is not granted, various actions will still allow for adding but not removing of pages. Change-Id: Ie33446a228dd6ed0114730935c1bf65667f5ce01
387 lines
11 KiB
PHP
387 lines
11 KiB
PHP
<?php
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/**
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* File deletion user interface.
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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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* @file
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* @author Rob Church <robchur@gmail.com>
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* @ingroup Media
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*/
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/**
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* File deletion user interface
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*
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* @ingroup Media
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*/
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class FileDeleteForm {
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/**
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* @var Title
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*/
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private $title = null;
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/**
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* @var File
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*/
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private $file = null;
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/**
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* @var File
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*/
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private $oldfile = null;
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private $oldimage = '';
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/**
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* Constructor
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*
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* @param $file File object we're deleting
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*/
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public function __construct( $file ) {
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$this->title = $file->getTitle();
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$this->file = $file;
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}
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/**
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* Fulfil the request; shows the form or deletes the file,
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* pending authentication, confirmation, etc.
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*/
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public function execute() {
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global $wgOut, $wgRequest, $wgUser, $wgUploadMaintenance;
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$permissionErrors = $this->title->getUserPermissionsErrors( 'delete', $wgUser );
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if ( count( $permissionErrors ) ) {
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throw new PermissionsError( 'delete', $permissionErrors );
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}
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if ( wfReadOnly() ) {
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throw new ReadOnlyError;
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}
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if ( $wgUploadMaintenance ) {
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throw new ErrorPageError( 'filedelete-maintenance-title', 'filedelete-maintenance' );
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}
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$this->setHeaders();
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$this->oldimage = $wgRequest->getText( 'oldimage', false );
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$token = $wgRequest->getText( 'wpEditToken' );
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# Flag to hide all contents of the archived revisions
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$suppress = $wgRequest->getVal( 'wpSuppress' ) && $wgUser->isAllowed( 'suppressrevision' );
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if ( $this->oldimage ) {
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$this->oldfile = RepoGroup::singleton()->getLocalRepo()->newFromArchiveName( $this->title, $this->oldimage );
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}
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if ( !self::haveDeletableFile( $this->file, $this->oldfile, $this->oldimage ) ) {
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$wgOut->addHTML( $this->prepareMessage( 'filedelete-nofile' ) );
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$wgOut->addReturnTo( $this->title );
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return;
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}
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// Perform the deletion if appropriate
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if ( $wgRequest->wasPosted() && $wgUser->matchEditToken( $token, $this->oldimage ) ) {
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$deleteReasonList = $wgRequest->getText( 'wpDeleteReasonList' );
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$deleteReason = $wgRequest->getText( 'wpReason' );
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if ( $deleteReasonList == 'other' ) {
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$reason = $deleteReason;
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} elseif ( $deleteReason != '' ) {
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// Entry from drop down menu + additional comment
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$reason = $deleteReasonList . wfMessage( 'colon-separator' )
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->inContentLanguage()->text() . $deleteReason;
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} else {
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$reason = $deleteReasonList;
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}
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$status = self::doDelete( $this->title, $this->file, $this->oldimage, $reason, $suppress, $wgUser );
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if ( !$status->isGood() ) {
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$wgOut->addHTML( '<h2>' . $this->prepareMessage( 'filedeleteerror-short' ) . "</h2>\n" );
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$wgOut->addWikiText( '<div class="error">' . $status->getWikiText( 'filedeleteerror-short', 'filedeleteerror-long' ) . '</div>' );
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}
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if ( $status->ok ) {
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$wgOut->setPageTitle( wfMessage( 'actioncomplete' ) );
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$wgOut->addHTML( $this->prepareMessage( 'filedelete-success' ) );
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// Return to the main page if we just deleted all versions of the
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// file, otherwise go back to the description page
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$wgOut->addReturnTo( $this->oldimage ? $this->title : Title::newMainPage() );
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WatchAction::doWatchOrUnwatch( $wgRequest->getCheck( 'wpWatch' ), $this->title, $wgUser );
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}
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return;
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}
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$this->showForm();
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$this->showLogEntries();
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}
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/**
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* Really delete the file
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*
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* @param $title Title object
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* @param File $file: file object
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* @param string $oldimage archive name
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* @param string $reason reason of the deletion
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* @param $suppress Boolean: whether to mark all deleted versions as restricted
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* @param $user User object performing the request
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* @throws MWException
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* @return bool|Status
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*/
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public static function doDelete( &$title, &$file, &$oldimage, $reason, $suppress, User $user = null ) {
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if ( $user === null ) {
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global $wgUser;
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$user = $wgUser;
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}
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if ( $oldimage ) {
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$page = null;
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$status = $file->deleteOld( $oldimage, $reason, $suppress );
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if ( $status->ok ) {
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// Need to do a log item
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$logComment = wfMessage( 'deletedrevision', $oldimage )->inContentLanguage()->text();
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if ( trim( $reason ) != '' ) {
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$logComment .= wfMessage( 'colon-separator' )
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->inContentLanguage()->text() . $reason;
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}
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$logtype = $suppress ? 'suppress' : 'delete';
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$logEntry = new ManualLogEntry( $logtype, 'delete' );
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$logEntry->setPerformer( $user );
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$logEntry->setTarget( $title );
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$logEntry->setComment( $logComment );
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$logid = $logEntry->insert();
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$logEntry->publish( $logid );
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}
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} else {
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$status = Status::newFatal( 'cannotdelete',
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wfEscapeWikiText( $title->getPrefixedText() )
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);
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$page = WikiPage::factory( $title );
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$dbw = wfGetDB( DB_MASTER );
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try {
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// delete the associated article first
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$error = '';
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$deleteStatus = $page->doDeleteArticleReal( $reason, $suppress, 0, false, $error, $user );
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// doDeleteArticleReal() returns a non-fatal error status if the page
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// or revision is missing, so check for isOK() rather than isGood()
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if ( $deleteStatus->isOK() ) {
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$status = $file->delete( $reason, $suppress );
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if ( $status->isOK() ) {
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$dbw->commit( __METHOD__ );
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} else {
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$dbw->rollback( __METHOD__ );
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}
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}
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} catch ( MWException $e ) {
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// rollback before returning to prevent UI from displaying incorrect "View or restore N deleted edits?"
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$dbw->rollback( __METHOD__ );
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throw $e;
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}
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}
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if ( $status->isOK() ) {
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wfRunHooks( 'FileDeleteComplete', array( &$file, &$oldimage, &$page, &$user, &$reason ) );
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}
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return $status;
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}
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/**
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* Show the confirmation form
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*/
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private function showForm() {
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global $wgOut, $wgUser, $wgRequest;
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if ( $wgUser->isAllowed( 'suppressrevision' ) ) {
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$suppress = "<tr id=\"wpDeleteSuppressRow\">
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<td></td>
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<td class='mw-input'><strong>" .
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Xml::checkLabel( wfMessage( 'revdelete-suppress' )->text(),
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'wpSuppress', 'wpSuppress', false, array( 'tabindex' => '3' ) ) .
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"</strong></td>
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</tr>";
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} else {
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$suppress = '';
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}
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$checkWatch = $wgUser->getBoolOption( 'watchdeletion' ) || $wgUser->isWatched( $this->title );
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$form = Xml::openElement( 'form', array( 'method' => 'post', 'action' => $this->getAction(),
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'id' => 'mw-img-deleteconfirm' ) ) .
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Xml::openElement( 'fieldset' ) .
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Xml::element( 'legend', null, wfMessage( 'filedelete-legend' )->text() ) .
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Html::hidden( 'wpEditToken', $wgUser->getEditToken( $this->oldimage ) ) .
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$this->prepareMessage( 'filedelete-intro' ) .
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Xml::openElement( 'table', array( 'id' => 'mw-img-deleteconfirm-table' ) ) .
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"<tr>
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<td class='mw-label'>" .
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Xml::label( wfMessage( 'filedelete-comment' )->text(), 'wpDeleteReasonList' ) .
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"</td>
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<td class='mw-input'>" .
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Xml::listDropDown(
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'wpDeleteReasonList',
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wfMessage( 'filedelete-reason-dropdown' )->inContentLanguage()->text(),
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wfMessage( 'filedelete-reason-otherlist' )->inContentLanguage()->text(),
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'',
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'wpReasonDropDown',
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1
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) .
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"</td>
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</tr>
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<tr>
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<td class='mw-label'>" .
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Xml::label( wfMessage( 'filedelete-otherreason' )->text(), 'wpReason' ) .
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"</td>
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<td class='mw-input'>" .
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Xml::input( 'wpReason', 60, $wgRequest->getText( 'wpReason' ),
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array( 'type' => 'text', 'maxlength' => '255', 'tabindex' => '2', 'id' => 'wpReason' ) ) .
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"</td>
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</tr>
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{$suppress}";
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if ( $wgUser->isLoggedIn() ) {
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$form .= "
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<tr>
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<td></td>
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<td class='mw-input'>" .
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Xml::checkLabel( wfMessage( 'watchthis' )->text(),
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'wpWatch', 'wpWatch', $checkWatch, array( 'tabindex' => '3' ) ) .
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"</td>
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</tr>";
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}
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$form .= "
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<tr>
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<td></td>
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<td class='mw-submit'>" .
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Xml::submitButton( wfMessage( 'filedelete-submit' )->text(),
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array( 'name' => 'mw-filedelete-submit', 'id' => 'mw-filedelete-submit', 'tabindex' => '4' ) ) .
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"</td>
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</tr>" .
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Xml::closeElement( 'table' ) .
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Xml::closeElement( 'fieldset' ) .
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Xml::closeElement( 'form' );
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if ( $wgUser->isAllowed( 'editinterface' ) ) {
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$title = Title::makeTitle( NS_MEDIAWIKI, 'Filedelete-reason-dropdown' );
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$link = Linker::link(
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$title,
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wfMessage( 'filedelete-edit-reasonlist' )->escaped(),
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array(),
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array( 'action' => 'edit' )
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);
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$form .= '<p class="mw-filedelete-editreasons">' . $link . '</p>';
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}
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$wgOut->addHTML( $form );
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}
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/**
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* Show deletion log fragments pertaining to the current file
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*/
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private function showLogEntries() {
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global $wgOut;
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$deleteLogPage = new LogPage( 'delete' );
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$wgOut->addHTML( '<h2>' . $deleteLogPage->getName()->escaped() . "</h2>\n" );
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LogEventsList::showLogExtract( $wgOut, 'delete', $this->title );
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}
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/**
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* Prepare a message referring to the file being deleted,
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* showing an appropriate message depending upon whether
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* it's a current file or an old version
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*
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* @param string $message message base
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* @return String
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*/
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private function prepareMessage( $message ) {
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global $wgLang;
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if ( $this->oldimage ) {
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return wfMessage(
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"{$message}-old", # To ensure grep will find them: 'filedelete-intro-old', 'filedelete-nofile-old', 'filedelete-success-old'
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wfEscapeWikiText( $this->title->getText() ),
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$wgLang->date( $this->getTimestamp(), true ),
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$wgLang->time( $this->getTimestamp(), true ),
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wfExpandUrl( $this->file->getArchiveUrl( $this->oldimage ), PROTO_CURRENT ) )->parseAsBlock();
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} else {
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return wfMessage(
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$message,
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wfEscapeWikiText( $this->title->getText() )
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)->parseAsBlock();
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}
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}
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/**
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* Set headers, titles and other bits
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*/
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private function setHeaders() {
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global $wgOut;
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$wgOut->setPageTitle( wfMessage( 'filedelete', $this->title->getText() ) );
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$wgOut->setRobotPolicy( 'noindex,nofollow' );
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$wgOut->addBacklinkSubtitle( $this->title );
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}
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/**
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* Is the provided `oldimage` value valid?
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*
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* @return bool
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*/
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public static function isValidOldSpec( $oldimage ) {
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return strlen( $oldimage ) >= 16
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&& strpos( $oldimage, '/' ) === false
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&& strpos( $oldimage, '\\' ) === false;
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}
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/**
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* Could we delete the file specified? If an `oldimage`
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* value was provided, does it correspond to an
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* existing, local, old version of this file?
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*
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* @param $file File
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* @param $oldfile File
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* @param $oldimage File
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* @return bool
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*/
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public static function haveDeletableFile( &$file, &$oldfile, $oldimage ) {
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return $oldimage
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? $oldfile && $oldfile->exists() && $oldfile->isLocal()
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: $file && $file->exists() && $file->isLocal();
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}
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/**
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* Prepare the form action
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*
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* @return string
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*/
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private function getAction() {
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$q = array();
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$q['action'] = 'delete';
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if ( $this->oldimage ) {
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$q['oldimage'] = $this->oldimage;
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}
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return $this->title->getLocalURL( $q );
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}
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/**
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* Extract the timestamp of the old version
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*
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* @return string
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*/
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private function getTimestamp() {
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return $this->oldfile->getTimestamp();
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}
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}
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