mediawiki-extensions-Scribunto/common/Hooks.php
Brad Jorsch 3d51662881 Rewrite error handling to avoid OutputPage::addInlineScript
This is apparently unofficially deprecated, and we can do things a bit
more straightforwardly by using ParserOutput::addJsConfigVars() to
communicate the error messages to the JS.

This also takes the opportunity to move "ext.scribunto", which is mostly
about errors, to "ext.scribunto.errors".

Bug: T75618
Change-Id: I1577dab2dab1bd79cb127879de141fdbb8963aeb
2015-03-16 16:08:44 -04:00

381 lines
11 KiB
PHP

<?php
/**
* Wikitext scripting infrastructure for MediaWiki: hooks.
* Copyright (C) 2009-2012 Victor Vasiliev <vasilvv@gmail.com>
* http://www.mediawiki.org/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*/
/**
* Hooks for the Scribunto extension.
*/
class ScribuntoHooks {
/**
* Get software information for Special:Version
*
* @param array &$software
* @return bool
*/
public static function getSoftwareInfo( array &$software ) {
$engine = Scribunto::newDefaultEngine();
$engine->setTitle( Title::makeTitle( NS_SPECIAL, 'Version' ) );
$engine->getSoftwareInfo( $software );
return true;
}
/**
* Register parser hooks.
*
* @param Parser $parser
* @return bool
*/
public static function setupParserHook( Parser &$parser ) {
$parser->setFunctionHook( 'invoke', 'ScribuntoHooks::invokeHook', Parser::SFH_OBJECT_ARGS );
return true;
}
/**
* Called when the interpreter is to be reset.
*
* @param Parser $parser
* @return bool
*/
public static function clearState( Parser &$parser ) {
Scribunto::resetParserEngine( $parser );
return true;
}
/**
* Called when the parser is cloned
*
* @param Parser $parser
* @return bool
*/
public static function parserCloned( Parser $parser ) {
$parser->scribunto_engine = null;
return true;
}
/**
* Hook function for {{#invoke:module|func}}
*
* @param Parser $parser
* @param PPFrame $frame
* @param array $args
* @throws MWException
* @throws ScribuntoException
* @return string
*/
public static function invokeHook( Parser &$parser, PPFrame $frame, array $args ) {
if ( !@constant( get_class( $frame ) . '::SUPPORTS_INDEX_OFFSET' ) ) {
throw new MWException(
'Scribunto needs MediaWiki 1.20 or later (Preprocessor::SUPPORTS_INDEX_OFFSET)' );
}
try {
if ( count( $args ) < 2 ) {
throw new ScribuntoException( 'scribunto-common-nofunction' );
}
$moduleName = trim( $frame->expand( $args[0] ) );
$engine = Scribunto::getParserEngine( $parser );
$title = Title::makeTitleSafe( NS_MODULE, $moduleName );
if ( !$title || Scribunto::isDocPage( $title ) ) {
throw new ScribuntoException( 'scribunto-common-nosuchmodule', array( 'args' => array( $moduleName ) ) );
}
$module = $engine->fetchModuleFromParser( $title );
if ( !$module ) {
throw new ScribuntoException( 'scribunto-common-nosuchmodule', array( 'args' => array( $moduleName ) ) );
}
$functionName = trim( $frame->expand( $args[1] ) );
$bits = $args[1]->splitArg();
unset( $args[0] );
unset( $args[1] );
// If $bits['index'] is empty, then the function name was parsed as a
// key=value pair (because of an equals sign in it), and since it didn't
// have an index, we don't need the index offset.
$childFrame = $frame->newChild( $args, $title, $bits['index'] === '' ? 0 : 1 );
$result = $module->invoke( $functionName, $childFrame );
return UtfNormal::cleanUp( strval( $result ) );
} catch( ScribuntoException $e ) {
$trace = $e->getScriptTraceHtml( array( 'msgOptions' => array( 'content' ) ) );
$html = Html::element( 'p', array(), $e->getMessage() );
if ( $trace !== false ) {
$html .= Html::element( 'p',
array(),
wfMessage( 'scribunto-common-backtrace' )->inContentLanguage()->text()
) . $trace;
} else {
$html .= Html::element( 'p',
array(),
wfMessage( 'scribunto-common-no-details' )->inContentLanguage()->text()
);
}
$out = $parser->getOutput();
$errors = $out->getExtensionData( 'ScribuntoErrors' );
if ( $errors === null ) {
// On first hook use, set up error array and output
$errors = array();
$parser->addTrackingCategory( 'scribunto-common-error-category' );
$out->addModules( 'ext.scribunto.errors' );
}
$errors[] = $html;
$out->setExtensionData( 'ScribuntoErrors', $errors );
$out->addJsConfigVars( 'ScribuntoErrors', $errors );
$id = 'mw-scribunto-error-' . ( count( $errors ) - 1 );
$parserError = htmlspecialchars( $e->getMessage() );
// #iferror-compatible error element
return "<strong class=\"error\"><span class=\"scribunto-error\" id=\"$id\">" .
$parserError. "</span></strong>";
}
}
/**
* @param Title $title
* @param string &$languageCode
* @return bool
*/
public static function getCodeLanguage( Title $title, &$languageCode ) {
global $wgScribuntoUseCodeEditor;
if( $wgScribuntoUseCodeEditor && $title->getNamespace() == NS_MODULE &&
!Scribunto::isDocPage( $title )
) {
$engine = Scribunto::newDefaultEngine();
if( $engine->getCodeEditorLanguage() ) {
$languageCode = $engine->getCodeEditorLanguage();
return false;
}
}
return true;
}
/**
* Set the Scribunto content handler for modules
*
* @param Title $title
* @param string &$model
* @return bool
*/
public static function contentHandlerDefaultModelFor( Title $title, &$model ) {
if( $title->getNamespace() == NS_MODULE && !Scribunto::isDocPage( $title ) ) {
$model = 'Scribunto';
return false;
}
return true;
}
/**
* Adds report of number of evaluations by the single wikitext page.
*
* @deprecated
* @param Parser $parser
* @param string $report
* @return bool
*/
public static function reportLimits( Parser $parser, &$report ) {
if ( Scribunto::isParserEnginePresent( $parser ) ) {
$engine = Scribunto::getParserEngine( $parser );
$report .= $engine->getLimitReport();
}
return true;
}
/**
* Adds report of number of evaluations by the single wikitext page.
*
* @param Parser $parser
* @param ParserOutput $output
* @return bool
*/
public static function reportLimitData( Parser $parser, ParserOutput $output ) {
// Unhook the deprecated hook, since the new one exists.
global $wgHooks;
unset( $wgHooks['ParserLimitReport']['scribunto'] );
if ( Scribunto::isParserEnginePresent( $parser ) ) {
$engine = Scribunto::getParserEngine( $parser );
$engine->reportLimitData( $output );
}
return true;
}
/**
* Formats the limit report data
*
* @param string $key
* @param string &$value
* @param string &$report
* @param bool $isHTML
* @param bool $localize
* @return bool
*/
public static function formatLimitData( $key, &$value, &$report, $isHTML, $localize ) {
$engine = Scribunto::newDefaultEngine();
return $engine->formatLimitData( $key, $value, $report, $isHTML, $localize );
}
/**
* Adds the module namespaces.
*
* @param string[] $list
* @return bool
*/
public static function addCanonicalNamespaces( array &$list ) {
$list[NS_MODULE] = 'Module';
$list[NS_MODULE_TALK] = 'Module_talk';
return true;
}
/**
* EditPageBeforeEditChecks hook
*
* @param EditPage $editor
* @param array $checkboxes Checkbox array
* @param int $tabindex Current tabindex
* @return bool
*/
public static function beforeEditChecks( EditPage &$editor, &$checkboxes, &$tabindex ) {
if ( $editor->getTitle()->getNamespace() !== NS_MODULE ) {
return true;
}
if ( Scribunto::isDocPage( $editor->getTitle() ) ) {
return true;
}
global $wgOut;
$wgOut->addModules( 'ext.scribunto.edit' );
$editor->editFormTextAfterTools = '<div id="mw-scribunto-console"></div>';
return true;
}
/**
* EditPageBeforeEditButtons hook
*
* @param EditPage $editor
* @param array $buttons Button array
* @param int $tabindex Current tabindex
* @return bool
*/
public static function beforeEditButtons( EditPage &$editor, array &$buttons, &$tabindex ) {
if ( $editor->getTitle()->getNamespace() !== NS_MODULE ) {
return true;
}
if ( Scribunto::isDocPage( $editor->getTitle() ) ) {
return true;
}
unset( $buttons['preview'] );
return true;
}
/**
* @param EditPage $editor
* @param string $text
* @param string $error
* @param string $summary
* @return bool
*/
public static function validateScript( EditPage $editor, $text, &$error, $summary ) {
global $wgOut;
$title = $editor->getTitle();
if( $title->getNamespace() != NS_MODULE ) {
return true;
}
if ( Scribunto::isDocPage( $title ) ) {
return true;
}
$engine = Scribunto::newDefaultEngine();
$engine->setTitle( $title );
$status = $engine->validate( $text, $title->getPrefixedDBkey() );
if( $status->isOK() ) {
return true;
}
$errmsg = $status->getWikiText( 'scribunto-error-short', 'scribunto-error-long' );
$error = <<<WIKI
<div class="errorbox">
{$errmsg}
</div>
<br clear="all" />
WIKI;
if ( isset( $status->scribunto_error->params['module'] ) ) {
$module = $status->scribunto_error->params['module'];
$line = $status->scribunto_error->params['line'];
if ( $module === $title->getPrefixedDBkey() && preg_match( '/^\d+$/', $line ) ) {
$wgOut->addInlineScript( 'window.location.hash = ' . Xml::encodeJsVar( "#mw-ce-l$line" ) );
}
}
return true;
}
/**
* @param array $files
* @return bool
*/
public static function unitTestsList( array &$files ) {
$tests = array(
'engines/LuaStandalone/LuaStandaloneInterpreterTest.php',
'engines/LuaStandalone/StandaloneTest.php',
'engines/LuaSandbox/LuaSandboxInterpreterTest.php',
'engines/LuaSandbox/SandboxTest.php',
'engines/LuaCommon/LuaEnvironmentComparisonTest.php',
'engines/LuaCommon/CommonTest.php',
'engines/LuaCommon/SiteLibraryTest.php',
'engines/LuaCommon/UriLibraryTest.php',
'engines/LuaCommon/UstringLibraryTest.php',
'engines/LuaCommon/MessageLibraryTest.php',
'engines/LuaCommon/TitleLibraryTest.php',
'engines/LuaCommon/TextLibraryTest.php',
'engines/LuaCommon/HtmlLibraryTest.php',
'engines/LuaCommon/LanguageLibraryTest.php',
'engines/LuaCommon/UstringLibraryPureLuaTest.php',
'engines/LuaCommon/LibraryUtilTest.php',
);
foreach ( $tests as $test ) {
$files[] = __DIR__ . '/../tests/' . $test;
}
return true;
}
/**
* @param Article &$article
* @param bool &$outputDone
* @param bool &$pcache
* @return bool
*/
public static function showDocPageHeader( Article &$article, &$outputDone, &$pcache ) {
global $wgOut;
$title = $article->getTitle();
if ( Scribunto::isDocPage( $title, $forModule ) ) {
$wgOut->addHTML(
wfMessage( 'scribunto-doc-page-header', $forModule->getPrefixedText() )->parseAsBlock()
);
}
return true;
}
}