ApiMove.php

Go to the documentation of this file.

<?php
class ApiMove extends ApiBase {

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

        $this->requireOnlyOneParameter( $params, 'from', 'fromid' );

        if ( isset( $params['from'] ) ) {
            $fromTitle = Title::newFromText( $params['from'] );
            if ( !$fromTitle || $fromTitle->isExternal() ) {
                $this->dieUsageMsg( array( 'invalidtitle', $params['from'] ) );
            }
        } elseif ( isset( $params['fromid'] ) ) {
            $fromTitle = Title::newFromID( $params['fromid'] );
            if ( !$fromTitle ) {
                $this->dieUsageMsg( array( 'nosuchpageid', $params['fromid'] ) );
            }
        }

        if ( !$fromTitle->exists() ) {
            $this->dieUsageMsg( 'notanarticle' );
        }
        $fromTalk = $fromTitle->getTalkPage();

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

        if ( $toTitle->getNamespace() == NS_FILE
            && !RepoGroup::singleton()->getLocalRepo()->findFile( $toTitle )
            && wfFindFile( $toTitle )
        ) {
            if ( !$params['ignorewarnings'] && $user->isAllowed( 'reupload-shared' ) ) {
                $this->dieUsageMsg( 'sharedfile-exists' );
            } elseif ( !$user->isAllowed( 'reupload-shared' ) ) {
                $this->dieUsageMsg( 'cantoverwrite-sharedfile' );
            }
        }

        // Move the page
        $toTitleExists = $toTitle->exists();
        $retval = $fromTitle->moveTo( $toTitle, true, $params['reason'], !$params['noredirect'] );
        if ( $retval !== true ) {
            $this->dieUsageMsg( reset( $retval ) );
        }

        $r = array(
            'from' => $fromTitle->getPrefixedText(),
            'to' => $toTitle->getPrefixedText(),
            'reason' => $params['reason']
        );

        if ( $fromTitle->exists() ) {
            //NOTE: we assume that if the old title exists, it's because it was re-created as
            // a redirect to the new title. This is not safe, but what we did before was
            // even worse: we just determined whether a redirect should have been created,
            // and reported that it was created if it should have, without any checks.
            // Also note that isRedirect() is unreliable because of bug 37209.
            $r['redirectcreated'] = '';
        }

        if ( $toTitleExists ) {
            $r['moveoverredirect'] = '';
        }

        // Move the talk page
        if ( $params['movetalk'] && $fromTalk->exists() && !$fromTitle->isTalkPage() ) {
            $toTalkExists = $toTalk->exists();
            $retval = $fromTalk->moveTo( $toTalk, true, $params['reason'], !$params['noredirect'] );
            if ( $retval === true ) {
                $r['talkfrom'] = $fromTalk->getPrefixedText();
                $r['talkto'] = $toTalk->getPrefixedText();
                if ( $toTalkExists ) {
                    $r['talkmoveoverredirect'] = '';
                }
            } else {
                // We're not gonna dieUsage() on failure, since we already changed something
                $parsed = $this->parseMsg( reset( $retval ) );
                $r['talkmove-error-code'] = $parsed['code'];
                $r['talkmove-error-info'] = $parsed['info'];
            }
        }

        $result = $this->getResult();

        // Move subpages
        if ( $params['movesubpages'] ) {
            $r['subpages'] = $this->moveSubpages( $fromTitle, $toTitle,
                $params['reason'], $params['noredirect'] );
            $result->setIndexedTagName( $r['subpages'], 'subpage' );

            if ( $params['movetalk'] ) {
                $r['subpages-talk'] = $this->moveSubpages( $fromTalk, $toTalk,
                    $params['reason'], $params['noredirect'] );
                $result->setIndexedTagName( $r['subpages-talk'], 'subpage' );
            }
        }

        $watch = 'preferences';
        if ( isset( $params['watchlist'] ) ) {
            $watch = $params['watchlist'];
        } elseif ( $params['watch'] ) {
            $watch = 'watch';
        } elseif ( $params['unwatch'] ) {
            $watch = 'unwatch';
        }

        // Watch pages
        $this->setWatch( $watch, $fromTitle, 'watchmoves' );
        $this->setWatch( $watch, $toTitle, 'watchmoves' );

        $result->addValue( null, $this->getModuleName(), $r );
    }

    public function moveSubpages( $fromTitle, $toTitle, $reason, $noredirect ) {
        $retval = array();
        $success = $fromTitle->moveSubpages( $toTitle, true, $reason, !$noredirect );
        if ( isset( $success[0] ) ) {
            return array( 'error' => $this->parseMsg( $success ) );
        }

        // At least some pages could be moved
        // Report each of them separately
        foreach ( $success as $oldTitle => $newTitle ) {
            $r = array( 'from' => $oldTitle );
            if ( is_array( $newTitle ) ) {
                $r['error'] = $this->parseMsg( reset( $newTitle ) );
            } else {
                // Success
                $r['to'] = $newTitle;
            }
            $retval[] = $r;
        }

        return $retval;
    }

    public function mustBePosted() {
        return true;
    }

    public function isWriteMode() {
        return true;
    }

    public function getAllowedParams() {
        return array(
            'from' => null,
            'fromid' => array(
                ApiBase::PARAM_TYPE => 'integer'
            ),
            'to' => array(
                ApiBase::PARAM_TYPE => 'string',
                ApiBase::PARAM_REQUIRED => true
            ),
            'token' => array(
                ApiBase::PARAM_TYPE => 'string',
                ApiBase::PARAM_REQUIRED => true
            ),
            'reason' => '',
            'movetalk' => false,
            'movesubpages' => false,
            'noredirect' => false,
            'watch' => array(
                ApiBase::PARAM_DFLT => false,
                ApiBase::PARAM_DEPRECATED => true,
            ),
            'unwatch' => array(
                ApiBase::PARAM_DFLT => false,
                ApiBase::PARAM_DEPRECATED => true,
            ),
            'watchlist' => array(
                ApiBase::PARAM_DFLT => 'preferences',
                ApiBase::PARAM_TYPE => array(
                    'watch',
                    'unwatch',
                    'preferences',
                    'nochange'
                ),
            ),
            'ignorewarnings' => false
        );
    }

    public function getParamDescription() {
        $p = $this->getModulePrefix();

        return array(
            'from' => "Title of the page you want to move. Cannot be used together with {$p}fromid",
            'fromid' => "Page ID of the page you want to move. Cannot be used together with {$p}from",
            'to' => 'Title you want to rename the page to',
            'token' => 'A move token previously retrieved through prop=info',
            'reason' => 'Reason for the move',
            'movetalk' => 'Move the talk page, if it exists',
            'movesubpages' => 'Move subpages, if applicable',
            'noredirect' => 'Don\'t create a redirect',
            'watch' => 'Add the page and the redirect to your watchlist',
            'unwatch' => 'Remove the page and the redirect from your watchlist',
            'watchlist' => 'Unconditionally add or remove the page from your ' .
                'watchlist, use preferences or do not change watch',
            'ignorewarnings' => 'Ignore any warnings'
        );
    }

    public function getResultProperties() {
        return array(
            '' => array(
                'from' => 'string',
                'to' => 'string',
                'reason' => 'string',
                'redirectcreated' => 'boolean',
                'moveoverredirect' => 'boolean',
                'talkfrom' => array(
                    ApiBase::PROP_TYPE => 'string',
                    ApiBase::PROP_NULLABLE => true
                ),
                'talkto' => array(
                    ApiBase::PROP_TYPE => 'string',
                    ApiBase::PROP_NULLABLE => true
                ),
                'talkmoveoverredirect' => 'boolean',
                'talkmove-error-code' => array(
                    ApiBase::PROP_TYPE => 'string',
                    ApiBase::PROP_NULLABLE => true
                ),
                'talkmove-error-info' => array(
                    ApiBase::PROP_TYPE => 'string',
                    ApiBase::PROP_NULLABLE => true
                )
            )
        );
    }

    public function getDescription() {
        return 'Move a page.';
    }

    public function getPossibleErrors() {
        return array_merge( parent::getPossibleErrors(),
            $this->getRequireOnlyOneParameterErrorMessages( array( 'from', 'fromid' ) ),
            array(
                array( 'invalidtitle', 'from' ),
                array( 'nosuchpageid', 'fromid' ),
                array( 'notanarticle' ),
                array( 'invalidtitle', 'to' ),
                array( 'sharedfile-exists' ),
            )
        );
    }

    public function needsToken() {
        return true;
    }

    public function getTokenSalt() {
        return '';
    }

    public function getExamples() {
        return array(
            'api.php?action=move&from=Badtitle&to=Goodtitle&token=123ABC&' .
                'reason=Misspelled%20title&movetalk=&noredirect='
        );
    }

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