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<?php
/**
* Edit rollback 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
*/
/**
* User interface for the rollback action
*
* @ingroup Actions
*/
class RollbackAction extends FormlessAction {
public function getName() {
return 'rollback';
}
public function getRestriction() {
return 'rollback';
}
public function onView() {
$details = null;
$request = $this->getRequest();
$result = $this->page->doRollback(
$request->getVal( 'from' ),
$request->getText( 'summary' ),
$request->getVal( 'token' ),
$request->getBool( 'bot' ),
$details,
$this->getUser()
);
if ( in_array( array( 'actionthrottledtext' ), $result ) ) {
throw new ThrottledError;
}
if ( isset( $result[0][0] ) && ( $result[0][0] == 'alreadyrolled' || $result[0][0] == 'cantrollback' ) ) {
$this->getOutput()->setPageTitle( $this->msg( 'rollbackfailed' ) );
$errArray = $result[0];
$errMsg = array_shift( $errArray );
$this->getOutput()->addWikiMsgArray( $errMsg, $errArray );
if ( isset( $details['current'] ) ) {
$current = $details['current'];
if ( $current->getComment() != '' ) {
$this->getOutput()->addHTML( $this->msg( 'editcomment' )->rawParams(
Linker::formatComment( $current->getComment() ) )->parse() );
}
}
return;
}
# Display permissions errors before read-only message -- there's no
# point in misleading the user into thinking the inability to rollback
# is only temporary.
if ( !empty( $result ) && $result !== array( array( 'readonlytext' ) ) ) {
# array_diff is completely broken for arrays of arrays, sigh.
# Remove any 'readonlytext' error manually.
$out = array();
foreach ( $result as $error ) {
if ( $error != array( 'readonlytext' ) ) {
$out [] = $error;
}
}
throw new PermissionsError( 'rollback', $out );
}
if ( $result == array( array( 'readonlytext' ) ) ) {
throw new ReadOnlyError;
}
$current = $details['current'];
$target = $details['target'];
$newId = $details['newid'];
$this->getOutput()->setPageTitle( $this->msg( 'actioncomplete' ) );
$this->getOutput()->setRobotPolicy( 'noindex,nofollow' );
if ( $current->getUserText() === '' ) {
$old = $this->msg( 'rev-deleted-user' )->escaped();
} else {
$old = Linker::userLink( $current->getUser(), $current->getUserText() )
. Linker::userToolLinks( $current->getUser(), $current->getUserText() );
}
$new = Linker::userLink( $target->getUser(), $target->getUserText() )
. Linker::userToolLinks( $target->getUser(), $target->getUserText() );
$this->getOutput()->addHTML( $this->msg( 'rollback-success' )->rawParams( $old, $new )->parseAsBlock() );
$this->getOutput()->returnToMain( false, $this->getTitle() );
if ( !$request->getBool( 'hidediff', false ) && !$this->getUser()->getBoolOption( 'norollbackdiff', false ) ) {
$de = new DifferenceEngine( $this->getContext(), $current->getId(), $newId, false, true );
$de->showDiff( '', '' );
}
}
protected function getDescription() {
return '';
}
}
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