ApiUndelete.php

Go to the documentation of this file.

<?php
class ApiUndelete extends ApiBase {

        public function execute() {
                $params = $this->extractRequestParams();

                if ( !$this->getUser()->isAllowed( 'undelete' ) ) {
                        $this->dieUsageMsg( 'permdenied-undelete' );
                }

                if ( $this->getUser()->isBlocked() ) {
                        $this->dieUsageMsg( 'blockedtext' );
                }

                $titleObj = Title::newFromText( $params['title'] );
                if ( !$titleObj || $titleObj->isExternal() ) {
                        $this->dieUsageMsg( array( 'invalidtitle', $params['title'] ) );
                }

                // Convert timestamps
                if ( !isset( $params['timestamps'] ) ) {
                        $params['timestamps'] = array();
                }
                if ( !is_array( $params['timestamps'] ) ) {
                        $params['timestamps'] = array( $params['timestamps'] );
                }
                foreach ( $params['timestamps'] as $i => $ts ) {
                        $params['timestamps'][$i] = wfTimestamp( TS_MW, $ts );
                }

                $pa = new PageArchive( $titleObj );
                $retval = $pa->undelete(
                        ( isset( $params['timestamps'] ) ? $params['timestamps'] : array() ),
                        $params['reason'],
                        array(),
                        false,
                        $this->getUser()
                );
                if ( !is_array( $retval ) ) {
                        $this->dieUsageMsg( 'cannotundelete' );
                }

                if ( $retval[1] ) {
                        wfRunHooks( 'FileUndeleteComplete',
                                array( $titleObj, array(), $this->getUser(), $params['reason'] ) );
                }

                $this->setWatch( $params['watchlist'], $titleObj );

                $info['title'] = $titleObj->getPrefixedText();
                $info['revisions'] = intval( $retval[0] );
                $info['fileversions'] = intval( $retval[1] );
                $info['reason'] = $retval[2];
                $this->getResult()->addValue( null, $this->getModuleName(), $info );
        }

        public function mustBePosted() {
                return true;
        }

        public function isWriteMode() {
                return true;
        }

        public function getAllowedParams() {
                return array(
                        'title' => array(
                                ApiBase::PARAM_TYPE => 'string',
                                ApiBase::PARAM_REQUIRED => true
                        ),
                        'token' => array(
                                ApiBase::PARAM_TYPE => 'string',
                                ApiBase::PARAM_REQUIRED => true
                        ),
                        'reason' => '',
                        'timestamps' => array(
                                ApiBase::PARAM_TYPE => 'timestamp',
                                ApiBase::PARAM_ISMULTI => true,
                        ),
                        'watchlist' => array(
                                ApiBase::PARAM_DFLT => 'preferences',
                                ApiBase::PARAM_TYPE => array(
                                        'watch',
                                        'unwatch',
                                        'preferences',
                                        'nochange'
                                ),
                        ),
                );
        }

        public function getParamDescription() {
                return array(
                        'title' => 'Title of the page you want to restore',
                        'token' => 'An undelete token previously retrieved through list=deletedrevs',
                        'reason' => 'Reason for restoring',
                        'timestamps' => 'Timestamps of the revisions to restore. If not set, all revisions will be restored.',
                        'watchlist' => 'Unconditionally add or remove the page from your watchlist, use preferences or do not change watch',
                );
        }

        public function getResultProperties() {
                return array(
                        '' => array(
                                'title' => 'string',
                                'revisions' => 'integer',
                                'filerevisions' => 'integer',
                                'reason' => 'string'
                        )
                );
        }

        public function getDescription() {
                return array(
                        'Restore certain revisions of a deleted page. A list of deleted revisions (including timestamps) can be',
                        'retrieved through list=deletedrevs'
                );
        }

        public function getPossibleErrors() {
                return array_merge( parent::getPossibleErrors(), array(
                        array( 'permdenied-undelete' ),
                        array( 'blockedtext' ),
                        array( 'invalidtitle', 'title' ),
                        array( 'cannotundelete' ),
                ) );
        }

        public function needsToken() {
                return true;
        }

        public function getTokenSalt() {
                return '';
        }

        public function getExamples() {
                return array(
                        'api.php?action=undelete&title=Main%20Page&token=123ABC&reason=Restoring%20main%20page',
                        'api.php?action=undelete&title=Main%20Page&token=123ABC&timestamps=20070703220045|20070702194856'
                );
        }

        public function getHelpUrls() {
                return 'https://www.mediawiki.org/wiki/API:Undelete';
        }
}