6906a7728c
UnknownContentHandler can be configued to handle models that belong to extensions that have been undeployed: $wgContentHandlers['xyzzy'] = 'UnknownContentHandler'; This way, no errors will be thrown when trying to access pages with the unsupported model. Instead, an error message is shown, and editing is prevented. This patch also improves handling of non-editable content in EditPage and in DifferenceEngine. Bug: T220608 Change-Id: Ia94521b786c0a5225a674e4dc3cb6761a723d75b
149 lines
3.3 KiB
PHP
149 lines
3.3 KiB
PHP
<?php
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/**
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* Content object implementation for representing unknown content.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @since 1.34
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*
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* @file
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* @ingroup Content
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*
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* @author Daniel Kinzler
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*/
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/**
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* Content object implementation representing unknown content.
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*
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* This can be used to handle content for which no ContentHandler exists on the system,
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* perhaps because the extension that provided it has been removed.
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*
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* UnknownContent instances are immutable.
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*
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* @ingroup Content
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*/
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class UnknownContent extends AbstractContent {
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/** @var string */
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private $data;
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/**
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* @param string $data
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* @param string $model_id The model ID to handle
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*/
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public function __construct( $data, $model_id ) {
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parent::__construct( $model_id );
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$this->data = $data;
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}
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/**
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* @return Content $this
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*/
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public function copy() {
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// UnknownContent is immutable, so no need to copy.
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return $this;
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}
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/**
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* Returns an empty string.
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*
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* @param int $maxlength
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*
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* @return string
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*/
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public function getTextForSummary( $maxlength = 250 ) {
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return '';
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}
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/**
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* Returns the data size in bytes.
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*
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* @return int
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*/
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public function getSize() {
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return strlen( $this->data );
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}
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/**
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* Returns false.
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*
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* @param bool|null $hasLinks If it is known whether this content contains links,
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* provide this information here, to avoid redundant parsing to find out.
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*
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* @return bool
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*/
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public function isCountable( $hasLinks = null ) {
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return false;
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}
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/**
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* @return string data of unknown format and meaning
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*/
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public function getNativeData() {
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return $this->getData();
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}
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/**
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* @return string data of unknown format and meaning
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*/
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public function getData() {
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return $this->data;
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}
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/**
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* Returns an empty string.
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*
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* @return string The raw text.
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*/
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public function getTextForSearchIndex() {
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return '';
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}
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/**
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* Returns false.
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*/
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public function getWikitextForTransclusion() {
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return false;
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}
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/**
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* Fills the ParserOutput with an error message.
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*/
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protected function fillParserOutput( Title $title, $revId,
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ParserOptions $options, $generateHtml, ParserOutput &$output
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) {
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$msg = wfMessage( 'unsupported-content-model', [ $this->getModel() ] );
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$html = Html::rawElement( 'div', [ 'class' => 'error' ], $msg->inContentLanguage()->parse() );
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$output->setText( $html );
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}
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/**
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* Returns false.
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*/
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public function convert( $toModel, $lossy = '' ) {
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return false;
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}
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protected function equalsInternal( Content $that ) {
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if ( !$that instanceof UnknownContent ) {
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return false;
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}
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return $this->getData() == $that->getData();
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}
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}
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