mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Scribunto
synced 2024-11-24 08:14:09 +00:00
327 lines
9.3 KiB
PHP
327 lines
9.3 KiB
PHP
<?php
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/**
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* Wikitext scripting infrastructure for MediaWiki: hooks.
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* Copyright (C) 2009-2012 Victor Vasiliev <vasilvv@gmail.com>
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* http://www.mediawiki.org/
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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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/**
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* Hooks for the Scribunto extension.
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*/
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class ScribuntoHooks {
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/**
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* Register parser hooks.
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* @param $parser Parser
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* @return bool
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*/
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public static function setupParserHook( &$parser ) {
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$parser->setFunctionHook( 'invoke', 'ScribuntoHooks::invokeHook', SFH_OBJECT_ARGS );
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return true;
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}
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/**
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* Called when the interpreter is to be reset.
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*
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* @param $parser Parser
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* @return bool
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*/
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public static function clearState( &$parser ) {
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Scribunto::resetParserEngine( $parser );
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return true;
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}
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/**
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* Hook function for {{#invoke:module|func}}
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*
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* @param $parser Parser
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* @param $frame PPFrame
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* @param $args array
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* @throws MWException
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* @throws ScribuntoException
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* @return string
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*/
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public static function invokeHook( &$parser, $frame, $args ) {
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if ( !@constant( get_class( $frame ) . '::SUPPORTS_INDEX_OFFSET' ) ) {
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throw new MWException(
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'Scribunto needs MediaWiki 1.20 or later (Preprocessor::SUPPORTS_INDEX_OFFSET)' );
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}
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wfProfileIn( __METHOD__ );
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try {
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if ( count( $args ) < 2 ) {
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throw new ScribuntoException( 'scribunto-common-nofunction' );
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}
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$moduleName = trim( $frame->expand( $args[0] ) );
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$engine = Scribunto::getParserEngine( $parser );
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$title = Title::makeTitleSafe( NS_MODULE, $moduleName );
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if ( !$title ) {
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throw new ScribuntoException( 'scribunto-common-nosuchmodule' );
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}
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$module = $engine->fetchModuleFromParser( $title );
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if ( !$module ) {
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throw new ScribuntoException( 'scribunto-common-nosuchmodule' );
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}
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$functionName = trim( $frame->expand( $args[1] ) );
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unset( $args[0] );
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unset( $args[1] );
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$childFrame = $frame->newChild( $args, $title, 1 );
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$result = $module->invoke( $functionName, $childFrame );
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$result = UtfNormal::cleanUp( strval( $result ) );
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wfProfileOut( __METHOD__ );
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return $result;
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} catch( ScribuntoException $e ) {
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$trace = $e->getScriptTraceHtml( array( 'msgOptions' => array( 'content' ) ) );
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$html = Html::element( 'p', array(), $e->getMessage() );
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if ( $trace !== false ) {
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$html .= Html::element( 'p', array(), wfMsgForContent( 'scribunto-common-backtrace' ) ) . $trace;
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}
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$out = $parser->getOutput();
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if ( !isset( $out->scribunto_errors ) ) {
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$out->addOutputHook( 'ScribuntoError' );
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$out->scribunto_errors = array();
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$parser->addTrackingCategory( 'scribunto-common-error-category' );
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}
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$out->scribunto_errors[] = $html;
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$id = 'mw-scribunto-error-' . ( count( $out->scribunto_errors ) - 1 );
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$parserError = wfMsgForContent( 'scribunto-parser-error' ) .
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$parser->insertStripItem( '<!--' . htmlspecialchars( $e->getMessage() ) . '-->' );
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wfProfileOut( __METHOD__ );
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// #iferror-compatible error element
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return "<strong class=\"error\"><span class=\"scribunto-error\" id=\"$id\">" .
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$parserError. "</span></strong>";
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}
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}
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/**
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* Overrides the standard view for modules. Enables syntax highlighting when
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* possible.
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*
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* @param $text string
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* @param $title Title
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* @param $output OutputPage
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* @return bool
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*/
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public static function handleScriptView( $text, $title, $output ) {
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global $wgScribuntoUseGeSHi;
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if( $title->getNamespace() == NS_MODULE ) {
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$engine = Scribunto::newDefaultEngine();
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$language = $engine->getGeSHiLanguage();
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if( $wgScribuntoUseGeSHi && $language ) {
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$geshi = SyntaxHighlight_GeSHi::prepare( $text, $language );
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$geshi->set_language( $language );
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if( $geshi instanceof GeSHi && !$geshi->error() ) {
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$code = $geshi->parse_code();
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if( $code ) {
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$output->addHeadItem( "source-{$language}", SyntaxHighlight_GeSHi::buildHeadItem( $geshi ) );
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$output->addHTML( "<div dir=\"ltr\">{$code}</div>" );
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return false;
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}
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}
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}
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// No GeSHi, or GeSHi can't parse it, use plain <pre>
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$output->addHTML( "<pre class=\"mw-code mw-script\" dir=\"ltr\">\n" );
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$output->addHTML( htmlspecialchars( $text ) );
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$output->addHTML( "\n</pre>\n" );
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return false;
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} else {
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return true;
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}
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}
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/**
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* @param $title Title
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* @param $lang string
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* @return bool
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*/
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public static function getCodeLanguage( $title, &$lang ) {
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global $wgScribuntoUseCodeEditor;
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if( $wgScribuntoUseCodeEditor && $title->getNamespace() == NS_MODULE ) {
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$engine = Scribunto::newDefaultEngine();
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if( $engine->getCodeEditorLanguage() ) {
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$lang = $engine->getCodeEditorLanguage();
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return false;
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}
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}
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return true;
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}
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/**
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* Indicates that modules are not wikitext.
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* @param $title Title
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* @param $result
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* @return bool
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*/
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public static function isWikitextPage( $title, &$result ) {
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if( $title->getNamespace() == NS_MODULE ) {
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$result = false;
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return false;
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}
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return true;
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}
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/**
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* Adds report of number of evaluations by the single wikitext page.
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*
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* @param $parser Parser
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* @param $report
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* @return bool
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*/
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public static function reportLimits( $parser, &$report ) {
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if ( Scribunto::isParserEnginePresent( $parser ) ) {
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$engine = Scribunto::getParserEngine( $parser );
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$report .= $engine->getLimitReport();
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}
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return true;
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}
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/**
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* Adds the module namespaces.
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*/
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public static function addCanonicalNamespaces( &$list ) {
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$list[NS_MODULE] = 'Module';
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$list[NS_MODULE_TALK] = 'Module_talk';
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return true;
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}
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/**
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* EditPageBeforeEditChecks hook
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* @param $editor EditPage
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* @param $checkboxes Checkbox array
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* @param $tabindex Current tabindex
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*/
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public static function beforeEditChecks( &$editor, &$checkboxes, &$tabindex ) {
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if ( $editor->getTitle()->getNamespace() !== NS_MODULE ) {
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return true;
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}
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$req = RequestContext::getMain()->getRequest();
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$name = 'scribunto_ignore_errors';
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$attribs = array(
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'tabindex' => ++$tabindex,
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'id' => "mw-$name",
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);
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$checkboxes['scribunto'] =
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Xml::check( $name, $req->getCheck( $name ), $attribs ) .
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' ' .
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Xml::label( wfMsg( 'scribunto-ignore-errors' ), "mw-$name" );
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// While we're here, lets set up the edit module
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global $wgOut;
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$wgOut->addModules( 'ext.scribunto.edit' );
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$editor->editFormTextAfterTools = '<div id="mw-scribunto-console"></div>';
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return true;
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}
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/**
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* EditPageBeforeEditButtons hook
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* @param $editor EditPage
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* @param $buttons Button array
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* @param $tabindex Current tabindex
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*/
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public static function beforeEditButtons( &$editor, &$buttons, &$tabindex ) {
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if ( $editor->getTitle()->getNamespace() !== NS_MODULE ) {
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return true;
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}
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unset( $buttons['preview'] );
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return true;
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}
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/**
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* @param $editor EditPage
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* @param $text string
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* @param $error
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* @param $summary
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* @return bool
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*/
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public static function validateScript( $editor, $text, &$error, $summary ) {
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global $wgOut;
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$title = $editor->getTitle();
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if( $title->getNamespace() != NS_MODULE ) {
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return true;
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}
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$req = RequestContext::getMain()->getRequest();
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if ( $req->getBool( 'scribunto_ignore_errors' ) ) {
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return true;
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}
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$engine = Scribunto::newDefaultEngine();
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$engine->setTitle( $title );
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$status = $engine->validate( $text, $title->getPrefixedDBkey() );
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if( $status->isOK() ) {
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return true;
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}
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$errmsg = $status->getWikiText( 'scribunto-error-short', 'scribunto-error-long' );
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$error = <<<WIKI
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<div class="errorbox">
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{$errmsg}
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</div>
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<br clear="all" />
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WIKI;
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if ( isset( $status->scribunto_error->params['module'] ) ) {
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$module = $status->scribunto_error->params['module'];
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$line = $status->scribunto_error->params['line'];
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if ( $module === $title->getPrefixedDBkey() && preg_match( '/^\d+$/', $line ) ) {
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$wgOut->addInlineScript( 'window.location.hash = ' . Xml::encodeJsVar( "#mw-ce-l$line" ) );
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}
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}
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return true;
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}
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/**
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* @param $files array
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* @return bool
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*/
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public static function unitTestsList( &$files ) {
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$tests = array(
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'engines/LuaStandalone/LuaStandaloneInterpreterTest.php',
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'engines/LuaStandalone/LuaStandaloneEngineTest.php',
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'engines/LuaSandbox/LuaSandboxInterpreterTest.php',
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'engines/LuaSandbox/LuaSandboxEngineTest.php' );
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foreach ( $tests as $test ) {
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$files[] = dirname( __FILE__ ) .'/../tests/' . $test;
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}
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return true;
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}
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/**
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* @param $outputPage OutputPage
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* @param $parserOutput ParserOutput
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*/
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public static function parserOutputHook( $outputPage, $parserOutput ) {
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$outputPage->addModules( 'ext.scribunto' );
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$outputPage->addInlineScript( 'mw.loader.using("ext.scribunto", function() {' .
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Xml::encodeJsCall( 'mw.scribunto.setErrors', array( $parserOutput->scribunto_errors ) )
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. '});' );
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}
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}
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