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<?php
/**
* User-requested page cache purging.
*
* 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
*/
/**
* User-requested page cache purging.
*
* For users with 'purge', this will directly trigger the cache purging and
* for users without that right, it will show a confirmation form.
*
* @ingroup Actions
*/
class PurgeAction extends FormAction {
private $redirectParams;
public function getName() {
return 'purge';
}
public function requiresUnblock() {
return false;
}
public function getDescription() {
return '';
}
/**
* Just get an empty form with a single submit button
* @return array
*/
protected function getFormFields() {
return array();
}
public function onSubmit( $data ) {
return $this->page->doPurge();
}
/**
* purge is slightly weird because it can be either formed or formless depending
* on user permissions
*/
public function show() {
$this->setHeaders();
// This will throw exceptions if there's a problem
$this->checkCanExecute( $this->getUser() );
if ( $this->getUser()->isAllowed( 'purge' ) ) {
$this->redirectParams = wfArrayToCgi( array_diff_key(
$this->getRequest()->getQueryValues(),
array( 'title' => null, 'action' => null )
) );
if ( $this->onSubmit( array() ) ) {
$this->onSuccess();
}
} else {
$this->redirectParams = $this->getRequest()->getVal( 'redirectparams', '' );
$form = $this->getForm();
if ( $form->show() ) {
$this->onSuccess();
}
}
}
protected function alterForm( HTMLForm $form ) {
$form->setSubmitTextMsg( 'confirm_purge_button' );
}
protected function preText() {
return $this->msg( 'confirm-purge-top' )->parse();
}
protected function postText() {
return $this->msg( 'confirm-purge-bottom' )->parse();
}
public function onSuccess() {
$this->getOutput()->redirect( $this->getTitle()->getFullURL( $this->redirectParams ) );
}
}
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