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<?php
/**
* File reversion user interface
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*
* @file
* @ingroup Actions
* @ingroup Media
* @author Alexandre Emsenhuber
* @author Rob Church <robchur@gmail.com>
*/
/**
* File reversion user interface
*
* @ingroup Actions
*/
class RevertAction extends FormAction {
/**
* @var OldLocalFile
*/
protected $oldFile;
public function getName() {
return 'revert';
}
public function getRestriction() {
return 'upload';
}
protected function checkCanExecute( User $user ) {
if ( $this->getTitle()->getNamespace() !== NS_FILE ) {
throw new ErrorPageError( $this->msg( 'nosuchaction' ), $this->msg( 'nosuchactiontext' ) );
}
parent::checkCanExecute( $user );
$oldimage = $this->getRequest()->getText( 'oldimage' );
if ( strlen( $oldimage ) < 16
|| strpos( $oldimage, '/' ) !== false
|| strpos( $oldimage, '\\' ) !== false
) {
throw new ErrorPageError( 'internalerror', 'unexpected', array( 'oldimage', $oldimage ) );
}
$this->oldFile = RepoGroup::singleton()->getLocalRepo()->newFromArchiveName(
$this->getTitle(),
$oldimage
);
if ( !$this->oldFile->exists() ) {
throw new ErrorPageError( '', 'filerevert-badversion' );
}
}
protected function alterForm( HTMLForm $form ) {
$form->setWrapperLegendMsg( 'filerevert-legend' );
$form->setSubmitTextMsg( 'filerevert-submit' );
$form->addHiddenField( 'oldimage', $this->getRequest()->getText( 'oldimage' ) );
$form->setTokenSalt( array( 'revert', $this->getTitle()->getPrefixedDBkey() ) );
}
protected function getFormFields() {
global $wgContLang;
$timestamp = $this->oldFile->getTimestamp();
$user = $this->getUser();
$lang = $this->getLanguage();
$userDate = $lang->userDate( $timestamp, $user );
$userTime = $lang->userTime( $timestamp, $user );
$siteDate = $wgContLang->date( $timestamp, false, false );
$siteTime = $wgContLang->time( $timestamp, false, false );
return array(
'intro' => array(
'type' => 'info',
'vertical-label' => true,
'raw' => true,
'default' => $this->msg( 'filerevert-intro',
$this->getTitle()->getText(), $userDate, $userTime,
wfExpandUrl(
$this->page->getFile()->getArchiveUrl( $this->getRequest()->getText( 'oldimage' ) ),
PROTO_CURRENT
) )->parseAsBlock()
),
'comment' => array(
'type' => 'text',
'label-message' => 'filerevert-comment',
'default' => $this->msg( 'filerevert-defaultcomment', $siteDate, $siteTime
)->inContentLanguage()->text()
)
);
}
public function onSubmit( $data ) {
$this->useTransactionalTimeLimit();
$source = $this->page->getFile()->getArchiveVirtualUrl(
$this->getRequest()->getText( 'oldimage' )
);
$comment = $data['comment'];
// TODO: Preserve file properties from database instead of reloading from file
return $this->page->getFile()->upload(
$source,
$comment,
$comment,
0,
false,
false,
$this->getUser()
);
}
public function onSuccess() {
$timestamp = $this->oldFile->getTimestamp();
$user = $this->getUser();
$lang = $this->getLanguage();
$userDate = $lang->userDate( $timestamp, $user );
$userTime = $lang->userTime( $timestamp, $user );
$this->getOutput()->addWikiMsg( 'filerevert-success', $this->getTitle()->getText(),
$userDate, $userTime,
wfExpandUrl( $this->page->getFile()->getArchiveUrl( $this->getRequest()->getText( 'oldimage' ) ),
PROTO_CURRENT
) );
$this->getOutput()->returnToMain( false, $this->getTitle() );
}
protected function getPageTitle() {
return $this->msg( 'filerevert', $this->getTitle()->getText() );
}
protected function getDescription() {
return OutputPage::buildBacklinkSubtitle( $this->getTitle() );
}
}
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