--- /dev/null
+<?php
+
+class SpecialChangeContentModel extends FormSpecialPage {
+
+ public function __construct() {
+ parent::__construct( 'ChangeContentModel', 'editcontentmodel' );
+ }
+
+ public function doesWrites() {
+ return true;
+ }
+
+ /**
+ * @var Title|null
+ */
+ private $title;
+
+ /**
+ * @var Revision|bool|null
+ *
+ * A Revision object, false if no revision exists, null if not loaded yet
+ */
+ private $oldRevision;
+
+ protected function setParameter( $par ) {
+ $par = $this->getRequest()->getVal( 'pagetitle', $par );
+ $title = Title::newFromText( $par );
+ if ( $title ) {
+ $this->title = $title;
+ $this->par = $title->getPrefixedText();
+ } else {
+ $this->par = '';
+ }
+ }
+
+ protected function postText() {
+ $text = '';
+ if ( $this->title ) {
+ $contentModelLogPage = new LogPage( 'contentmodel' );
+ $text = Xml::element( 'h2', null, $contentModelLogPage->getName()->text() );
+ $out = '';
+ LogEventsList::showLogExtract( $out, 'contentmodel', $this->title );
+ $text .= $out;
+ }
+ return $text;
+ }
+
+ protected function getDisplayFormat() {
+ return 'ooui';
+ }
+
+ protected function alterForm( HTMLForm $form ) {
+ if ( !$this->title ) {
+ $form->setMethod( 'GET' );
+ }
+
+ $this->addHelpLink( 'Help:ChangeContentModel' );
+
+ // T120576
+ $form->setSubmitTextMsg( 'changecontentmodel-submit' );
+ }
+
+ public function validateTitle( $title ) {
+ if ( !$title ) {
+ // No form input yet
+ return true;
+ }
+
+ // Already validated by HTMLForm, but if not, throw
+ // and exception instead of a fatal
+ $titleObj = Title::newFromTextThrow( $title );
+
+ $this->oldRevision = Revision::newFromTitle( $titleObj ) ?: false;
+
+ if ( $this->oldRevision ) {
+ $oldContent = $this->oldRevision->getContent();
+ if ( !$oldContent->getContentHandler()->supportsDirectEditing() ) {
+ return $this->msg( 'changecontentmodel-nodirectediting' )
+ ->params( ContentHandler::getLocalizedName( $oldContent->getModel() ) )
+ ->escaped();
+ }
+ }
+
+ return true;
+ }
+
+ protected function getFormFields() {
+ $fields = [
+ 'pagetitle' => [
+ 'type' => 'title',
+ 'creatable' => true,
+ 'name' => 'pagetitle',
+ 'default' => $this->par,
+ 'label-message' => 'changecontentmodel-title-label',
+ 'validation-callback' => [ $this, 'validateTitle' ],
+ ],
+ ];
+ if ( $this->title ) {
+ $options = $this->getOptionsForTitle( $this->title );
+ if ( empty( $options ) ) {
+ throw new ErrorPageError(
+ 'changecontentmodel-emptymodels-title',
+ 'changecontentmodel-emptymodels-text',
+ $this->title->getPrefixedText()
+ );
+ }
+ $fields['pagetitle']['readonly'] = true;
+ $fields += [
+ 'model' => [
+ 'type' => 'select',
+ 'name' => 'model',
+ 'options' => $options,
+ 'label-message' => 'changecontentmodel-model-label'
+ ],
+ 'reason' => [
+ 'type' => 'text',
+ 'name' => 'reason',
+ 'validation-callback' => function ( $reason ) {
+ $match = EditPage::matchSummarySpamRegex( $reason );
+ if ( $match ) {
+ return $this->msg( 'spamprotectionmatch', $match )->parse();
+ }
+
+ return true;
+ },
+ 'label-message' => 'changecontentmodel-reason-label',
+ ],
+ ];
+ }
+
+ return $fields;
+ }
+
+ private function getOptionsForTitle( Title $title = null ) {
+ $models = ContentHandler::getContentModels();
+ $options = [];
+ foreach ( $models as $model ) {
+ $handler = ContentHandler::getForModelID( $model );
+ if ( !$handler->supportsDirectEditing() ) {
+ continue;
+ }
+ if ( $title ) {
+ if ( $title->getContentModel() === $model ) {
+ continue;
+ }
+ if ( !$handler->canBeUsedOn( $title ) ) {
+ continue;
+ }
+ }
+ $options[ContentHandler::getLocalizedName( $model )] = $model;
+ }
+
+ return $options;
+ }
+
+ public function onSubmit( array $data ) {
+ if ( $data['pagetitle'] === '' ) {
+ // Initial form view of special page, pass
+ return false;
+ }
+
+ // At this point, it has to be a POST request. This is enforced by HTMLForm,
+ // but lets be safe verify that.
+ if ( !$this->getRequest()->wasPosted() ) {
+ throw new RuntimeException( "Form submission was not POSTed" );
+ }
+
+ $this->title = Title::newFromText( $data['pagetitle'] );
+ $titleWithNewContentModel = clone $this->title;
+ $titleWithNewContentModel->setContentModel( $data['model'] );
+ $user = $this->getUser();
+ // Check permissions and make sure the user has permission to:
+ $errors = wfMergeErrorArrays(
+ // edit the contentmodel of the page
+ $this->title->getUserPermissionsErrors( 'editcontentmodel', $user ),
+ // edit the page under the old content model
+ $this->title->getUserPermissionsErrors( 'edit', $user ),
+ // edit the contentmodel under the new content model
+ $titleWithNewContentModel->getUserPermissionsErrors( 'editcontentmodel', $user ),
+ // edit the page under the new content model
+ $titleWithNewContentModel->getUserPermissionsErrors( 'edit', $user )
+ );
+ if ( $errors ) {
+ $out = $this->getOutput();
+ $wikitext = $out->formatPermissionsErrorMessage( $errors );
+ // Hack to get our wikitext parsed
+ return Status::newFatal( new RawMessage( '$1', [ $wikitext ] ) );
+ }
+
+ $page = WikiPage::factory( $this->title );
+ if ( $this->oldRevision === null ) {
+ $this->oldRevision = $page->getRevision() ?: false;
+ }
+ $oldModel = $this->title->getContentModel();
+ if ( $this->oldRevision ) {
+ $oldContent = $this->oldRevision->getContent();
+ try {
+ $newContent = ContentHandler::makeContent(
+ $oldContent->serialize(), $this->title, $data['model']
+ );
+ } catch ( MWException $e ) {
+ return Status::newFatal(
+ $this->msg( 'changecontentmodel-cannot-convert' )
+ ->params(
+ $this->title->getPrefixedText(),
+ ContentHandler::getLocalizedName( $data['model'] )
+ )
+ );
+ }
+ } else {
+ // Page doesn't exist, create an empty content object
+ $newContent = ContentHandler::getForModelID( $data['model'] )->makeEmptyContent();
+ }
+
+ // All other checks have passed, let's check rate limits
+ if ( $user->pingLimiter( 'editcontentmodel' ) ) {
+ throw new ThrottledError();
+ }
+
+ $flags = $this->oldRevision ? EDIT_UPDATE : EDIT_NEW;
+ $flags |= EDIT_INTERNAL;
+ if ( $user->isAllowed( 'bot' ) ) {
+ $flags |= EDIT_FORCE_BOT;
+ }
+
+ $log = new ManualLogEntry( 'contentmodel', $this->oldRevision ? 'change' : 'new' );
+ $log->setPerformer( $user );
+ $log->setTarget( $this->title );
+ $log->setComment( $data['reason'] );
+ $log->setParameters( [
+ '4::oldmodel' => $oldModel,
+ '5::newmodel' => $data['model']
+ ] );
+
+ $formatter = LogFormatter::newFromEntry( $log );
+ $formatter->setContext( RequestContext::newExtraneousContext( $this->title ) );
+ $reason = $formatter->getPlainActionText();
+ if ( $data['reason'] !== '' ) {
+ $reason .= $this->msg( 'colon-separator' )->inContentLanguage()->text() . $data['reason'];
+ }
+
+ // Run edit filters
+ $derivativeContext = new DerivativeContext( $this->getContext() );
+ $derivativeContext->setTitle( $this->title );
+ $derivativeContext->setWikiPage( $page );
+ $status = new Status();
+ if ( !Hooks::run( 'EditFilterMergedContent',
+ [ $derivativeContext, $newContent, $status, $reason,
+ $user, false ] )
+ ) {
+ if ( $status->isGood() ) {
+ // TODO: extensions should really specify an error message
+ $status->fatal( 'hookaborted' );
+ }
+ return $status;
+ }
+
+ $status = $page->doEditContent(
+ $newContent,
+ $reason,
+ $flags,
+ $this->oldRevision ? $this->oldRevision->getId() : false,
+ $user
+ );
+ if ( !$status->isOK() ) {
+ return $status;
+ }
+
+ $logid = $log->insert();
+ $log->publish( $logid );
+
+ return $status;
+ }
+
+ public function onSuccess() {
+ $out = $this->getOutput();
+ $out->setPageTitle( $this->msg( 'changecontentmodel-success-title' ) );
+ $out->addWikiMsg( 'changecontentmodel-success-text', $this->title );
+ }
+
+ /**
+ * Return an array of subpages beginning with $search that this special page will accept.
+ *
+ * @param string $search Prefix to search for
+ * @param int $limit Maximum number of results to return (usually 10)
+ * @param int $offset Number of results to skip (usually 0)
+ * @return string[] Matching subpages
+ */
+ public function prefixSearchSubpages( $search, $limit, $offset ) {
+ return $this->prefixSearchString( $search, $limit, $offset );
+ }
+
+ protected function getGroupName() {
+ return 'pagetools';
+ }
+}
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff