diff options
Diffstat (limited to 'www/wiki/includes/specials/SpecialChangeContentModel.php')
| -rw-r--r-- | www/wiki/includes/specials/SpecialChangeContentModel.php | 296 |
1 files changed, 296 insertions, 0 deletions
diff --git a/www/wiki/includes/specials/SpecialChangeContentModel.php b/www/wiki/includes/specials/SpecialChangeContentModel.php new file mode 100644 index 00000000..87c899f4 --- /dev/null +++ b/www/wiki/includes/specials/SpecialChangeContentModel.php @@ -0,0 +1,296 @@ +<?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'; + } +} |